JAMB Exam 2023: Exam Day 2 Questions & Answers
Jamb 2023 Exam commenced on the 25th April 2023, In this article, we will provide an overview of the Jamb Exam Day 2 questions and answers, highlighting some of the key topics that candidates can expect to encounter. We hope that this information will be useful to candidates as they prepare for one of the most important exams of their academic career.
English
English
Life changer
Breakfast
13 beneficial
A BENeficial
B ✅benEficial
C beneFIcial
D benefiCIAL
14 electrician
A Electrician
B eLECtrician
C✅ elecTRIcian
D electriCIAN
15 proficient
A PROficient
B profiCIent
C proficiENT
D✅ proFIcient
16 sufficient
A ✅sufFIcient
B SUFficient
C suffiCIent
D sufficiENT
17 berricade
A✅ baRRIcade
B BARricade
C barricaDE
D barriCAde
18 aeroplane
A✅ AEroplane
B aeROplane
C aEroplane
D aeroPLANE
19 committee
A COMmittee
B comMIttee
C✅ commitTEE
D coMmittee
20 arbitrageur
A✅ arbitraGEUR
B arBItrageur
C ARbitrageur
D arbiTRAgeur .
Coming soon
From the alternative provided in the question below select the one which is most appropriately completes the sentence:
2.Omeime was taking his dog for a walk when the dog suddenly _ from its chain and escaped
A)
broke through
B)
broke lose
C)
broke even
D)
broke loose
E)
broke away
From the alternative provided in the question below select the one which is most appropriately completes the sentence:
3.I was still sleeping when the national news __ this morning
A)
were broadcast
B)
were broadcasted
C)
was broadcast
D)
was broadcasted
E)
were being broadcasted
From the alternative provided in the question below select the one which is most appropriately completes the sentence:
4.Each of the contestants __ a chance to win
A)
has
B)
have
C)
get
D)
gets
E)
take
From the alternative provided in the question below select the one which is most appropriately completes the sentence:
5.I gave the book to the library attendant __ I think works in the evenings
A)
whom
B)
whose
C)
which
D)
who
E)
of whom
From the alternative provided in the question below select the one which is most appropriately completes the sentence:
6.The politicians are responsible for the __ events have taken in this country
A)
course
B)
curse
C)
coarse
D)
cause
E)
corse
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In the question below choose the option opposite in meaning to the word in capital letters:
7.The chief was GENEROUS in his award of university scholarships
A)
nobel
B)
considerate
C)
liberal
D)
mean
E)
honest
In the question below choose the option opposite in meaning to the word in capital letters:
8.To most people last Christmas was an AUSTERE period
A)
prosperous
B)
harsh
C)
severe
D)
sour
E)
stern
In the question below choose the option opposite in meaning to the word in capital letters:
9.Chidi is naturally TACITURN
A)
friendly
B)
cheerful
C)
dumb
D)
lively
E)
garrulous
In the question below choose the option opposite in meaning to the word in capital letters:
10.He is loved for his ALTRUISM.
A)
benevolence
B)
sincerity
C)
selfishness
D)
selflessness
E)
kindness
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Life Changer
Who was called the quiet one?
Ans: Talle
What was “etiquette” about in the book
Ans: Not sitting down until you are asked to
Where did ummi tell the story
A. In the compound
B. Under the tree
C. In the children’s room
What are the themes of the book
A. Justice,betrayal of trust, marriage
B. Betrayal of trust, schooling
C. Justice, culture
Boka means?
Ans: traditional medicine man
What is d name of salma’s fiance
Life changer
How many times was mum called in d text
Life changer
Pls d most intelligent boy in the text during salma last paper is known as
Bint’s parents encouraged her to take French because of all but one of these reasons——
A)They believe that French professionals are high in damand
B)They believe that language acquisition at an early age is relatively easy
C)They believe that learning a language at early age takes minimal effort
D)They believe that French was second to English in ranking of international languages
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Physics
In physics.
A car travels 50km due east and 80km due west calculate the displacement and direction.
Answers:
The displacement is the vector difference between the final and initial positions of the car. Let’s assume the initial position is the origin (0 km, 0 km).
The final position after traveling 50 km due east is (50 km, 0 km).
The final position after traveling 80 km due west is (-80 km, 0 km).
Therefore, the displacement is the vector difference between these two positions:
Displacement = final position – initial position
= (-80 km, 0 km) – (0 km, 0 km) + (50 km, 0 km)
= (-30 km, 0 km)
The displacement is -30 km in the x-direction (west).
The direction of the displacement can be expressed as an angle measured counterclockwise from due east.
tan(theta) = opposite/adjacent = 0/30
theta = tan^-1(0/30)
theta = 0 degrees
Therefore, the displacement is 30 km west (in the negative x-direction), and its direction is due east.
The sun reaches the earth through
A Radiation✅
B Conduction
C convection
PHYSICS QUESTIONS
- Which of the following is a poor conductor of electricity
A)Soapy water
B)cold water
C)distilled water
D)None - If a reverse-biased voltage is applied across a p-n junction, the depletion layer width is
A. Increased
B. Decreased
C. Constant
D. Halved - A semi conductor in which the holes are excess is .
a. P-type
b. N- type
C. P-n type
D. Ohmic type - Which of the following is a poor conductor of electricity
A)Soapy water
B)cold water
C)distilled water
D)None - In a series resonant circuit , the current flowing in the circuit is
A. Max
B. Min
C. Zero
D. Unaffected.
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Chemistry
What type of gas is laughing gas
A nitrogen I oxide ✅
B nitrogen ii oxide
C nitrogen iv oxide
Which items correctly complete the following statment? A catalyst can act in a chemical reaction to: (I) increase the equilibrium constant. (II) lower the activation energy. (III) decrease E for the reaction. (IV) provide a new path for the reaction. (a) only I & II (b) only II & III (c) only III & IV (d) only I & III (e) only II & IV
Which of the following has a trigonal planar shape A. NH3✅B. PCl3 C. H2O D. None of the above
Some metals are found in the uncombined free state while other metals are found in the combined state. What is a deciding factor? (a) Metals with negative reduction potentials can occur in the free state while metals with positive reduction potentials occur in the combined state. (b) The active metals can occur in the free state while the less active metals occur in the combined state. (c) Metals with positive reduction potentials can occur in the free state while metals with negative reduction potentials can occur in the combined state. (d) There is no way we can predict which metals will be free or combined. (e) none of the above
The Hall-Heroult process is used in the production of: (a) Mg (b) Fe (c) Al (d) Au (e) Cu
Which metal can be found as the free element? (a) Na (b) Mn (c) Fe (d) Cr (e) Pt ✅
Which of the following halogens has the lowest electropositivity? A. Chlorine B. Iodine C. Fluorine✅ D. Bromine
The charge to mass ratio of electrons was determined by A. RA MIKIKAN ✅ B. Niels Bohr C. Ernest Rutherford D. JJ Thomson
SET 3: 1. NH3 + H3O+ => NH4+ + H2O Which of the following statements is correct about the above rxn? A. NH3 acts as an acid B. NH4+ acts as a base C. H3O+ acts as an acid D. H3O+ acts as a base
2. Which of the following is not a suitable method of preparing simple salt? A. Hydrogenation B. Neutralization C. Double decomposition D. Reaction of an acid with a metal
3. Which of the following is/are correct I. pH = -log(H+) II. pH = log(1/H+) III. pH = -log(OH-) IV. pOH = log(1/OH-) A. Only I and IV B. only I and II C. I, II, AND IV D. I, III and IV
4. Which of the following remains unchanged when heated in hydrogen? A. PbO B. Fe2O3 C. CuO D. ZnO
5. Which of the following metals reacts with steam reversibly only when red hot? A. Copper B. Iron C. Calcium D. Sodium
6. What’s the catalyst used in lead chamber process for the production of sulphuric acid A. Vanadium V oxide B. Manganese dioxide C. Manganese tetraoxide D. Nickel E. None of the above
7. Which of the following gases will rekindle a brightly splint? A. NO2 B. NO C. N2O D. CL2
8. What’s the product of ostwald process? A. Nitric acid B. Sulphuric acid C. Ammonia. D. Hydrochloric acid
9. Why is helium preferred to hydrogen in filling balloons? A. Exhibits isotopy B. Is a component of water C. Is diatomic D. Is inflammable
10. The intermolecular force present in water is? A. Hydrogen bond B. Covalent bond C. Dative bond D. Ionic bond Chemistry morning
1). Which of the following is a physical change? A. Exposing white phosphorus to air B. Burning kerosene C. Dissolving calcium in water D. Freezing ice cream
2). Sulphur exists in six forms in the solid state. This property is known as A. Isomerism B. Allotropy C. Isotopy D. Isomorphism
3). Which of the following gases contains the least number of atoms at s.t.p? A. 1 mole of butane B. 4 moles of chlorine C. 3 moles of ozone D. 7 moles of argon
4). Which important nitrogen-containing compound is produced in Haber’s process? A. NH3 B. NO2 C. NO D. HNO3
5). Elements in the periodic table are arranged in the order of their A. atomic numbers B. metallic character C. mass number D. relative atomic mass
6). The two ions responsible for hardness in water are A. Ca2+ and / or Mg2+ B. K+ and / or Mg2+ C. Ca2+ and / or Li+ D. Ca2+ and / or Na+
7). The electronic configuration of element Z is 1s² 2s² 2p⁶ 3s² 3p¹. What is the formula of the compound formed between Z and tetraoxosulphate (VI) ion. A. Z3(SO4)2 B. ZSO4 C. Z2 SO4 D. Z2(SO4)3
8). The hybridization in the compound CH3−CH2−C≡H is A. sp³ and sp B. sp C. sp² D. sp³ and sp²
9). A cell shorthand notation can be written as A / A+ // B2+ /B. The double slash in the notation represents the A. electrolyte B. electrodes C. salt bridge D. solid – liquid interface
10). The shapes of water, ammonia, carbon (iv) oxide and methane are respectively A. linear, tetrahedral, angular and pyramidal B. angular, pyramidal, linear and tetrahedral C. pyramidal, linear, tetrahedral and angular D. tetrahedral, angular, pyramidal and linear
10). Methane is prepared in the laboratory by heating a mixture of sodium ethanoate with soda lime. The chemical constituent(s) of soda lime is/are A. Ca(OH)2 and NaOH B. Na2CO3 C. NaCl D. NaOH
Chemistry
RCOOH functional group is for
Ans: Alkanoic acid
Shape of Carbon(IV) oxide
Ans: Linear
The most reactive Halogen is?
Ans: Fluorine
C2H4 +3O2—> 2H20+ 2CO2
If 10cm3 reacts with 50cm3 of oxygen, what volume of oxygen will be left unreacted?
Which of the following dissolves to release the most ion
A Glucose
B Tetrachloromethane
C Sodiumchloride
D Ammonium chloride
Ans: wasn’t sure but I picked
Which arrangement below shows the order of Element, compound and mixture respectively
Ans: Oxygen, water and brass
Then an equation on nuclear fusion
Tritium+ Deuterium—> Alpha particle + Neutron
The reaction is called
Ans: Nuclear fusion
The mass of an atom is measured from?
Ans: Protons and neutrons
Reaction of Alkanol with Alkanoic acid gives
Ans: Alkanoate
Graph of Boyle’s law
Then two questions on a Solubility curve
The pressure of a gas at constant temperature increases with
Ans: Decrease in volume
- what is the function of cryolite in electrolytic cell for the extraction of aluminum
- which of the following substances produce carbon iv oxide.
a. bauxite
b. limestone
c. haematite
d. zinc blende - water is temporary hard because it contains
a. caso4
b. mgso4
c. cacl2
d. ca(hco3) - cu²+ + fe——–> fe²+ + cu
in the above reaction, fe is oxidized by.
a. accepting two electrons from copper
b. losing two electrons to copper
c. virtue of high melting point
d. sharing two electrons with copper - bronze is an alloy of cu and ?
a. lead
b. zinc
c. tin
d. cobalt
- member of halogen that is liquid at room temperature
- hydrogen is collected through upward delivery because.
a. it is denser than air
b. less dense than air
c. reactive with water
d. flammable - a pair of gas that are associated with acid rain are.
a. no2 and co2
b. h2 and o2
c. nh3 and co
d. n2 and h2 - after breathing in the test tube that contains acidified k2cr2o7 a man noticed change in color of k2cr2o7 from orange to green this suggest the presence of
a. alkane
b. alkanol
c. alkanal
d. alkanoic acid
- advantage of producing ethanol by fermentation of sugar over catalytic addition of steam to ethene is
a. ethanal produced is purer
b. process is faster
c. process involves high temperature
d. process uses renewable raw materials - natural rubber is a polymer of.
a. 2-methylbuta-1-3-diene
b hexane-1,6-,dioc
c. 1,- chloro buta 2,3-diene
d. hexane-1,5-dioc - h2, nh3, o2 and co2
consider the above gases, which gas has the highest rate of diffusion (h=1, n=14, c =12, o=16)
a. h2
b. nh3
c. o2
d. co2
elements in the periodic table are arranged in the order of.
A.increase atomic number.
B decrease atomic number.
C increase in mass number.
D decrease in mass number
what current would be required to deposit 2.4g of Zn in 3hours at the cathode during the electrolysis of molten ZinCl
A 0.66
B 0.90
C 0.11
D 0.52
c4h10—>c4h8 + h2 is what reaction a.combustion b. decomposition c. polymerization d. cracking
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Biology
- Which of the following is an example of genetic variation?
A. A person’s hair color
B. A person’s haircut
C. A person’s clothing style
D. A person’s favorite food - Which of the following is an example of environmental variation?
A. A person’s height
B. A person’s eye color
C. A person’s accent
D. A person’s weight - Which of the following is NOT a source of genetic variation?
A. Mutation
B. Recombination
C. Environmental factors
D. Gene flow - Which of the following is an example of phenotypic variation?
A. A person’s blood type
B. A person’s DNA sequence
C. A person’s age
D. A person’s gender - Which of the following is an example of continuous variation?
A. Height in humans
B. Blood type in humans
C. Flower color in plants
D. Fur pattern in animals - Which of the following is an example of discontinuous variation?
A. Blood type in humans
B. Height in humans
C. Eye color in humans
D. Skin color in humans - Which of the following is an example of heritability?
A. A person’s educational level
B. A person’s job title
C. A person’s income
D. A person’s eye color - Which of the following is NOT a factor that can influence genetic variation within a population?
A. Natural selection
B. Mutation rate
C. Genetic drift
D. Uniform environment - Which of the following is an example of a genetic trait with high heritability?
A. Eye color in humans
B. Height in plants
C. Fur color in animals
D. Flower size in plants - Which of the following can increase genetic variation within a population?
A. Mutation
B. Genetic drift
C. Natural selection
D. Inbreeding
Answers:
- A. A person’s hair color is an example of genetic variation as it is determined by genes inherited from parents.
- C. A person’s accent is an example of environmental variation as it is influenced by the cultural and linguistic environment in which they grew up.
- C. Environmental factors are not a source of genetic variation as they do not directly affect the DNA sequence of an organism.
- A. A person’s blood type is an example of phenotypic variation as it is a physical trait that can be observed.
- A. Height in humans is an example of continuous variation as it can vary along a continuous spectrum from very short to very tall.
- A. Blood type in humans is an example of discontinuous variation as there are only a few distinct blood types that individuals can have.
- D. A person’s eye color is an example of heritability as it is largely determined by genes inherited from parents.
- D. A uniform environment is not a factor that can influence genetic variation within a population as it does not introduce new genetic variations.
- B. Height in plants is an example of a genetic trait with high heritability as it is largely determined by genes and can be passed down from parent to offspring.
- A. Mutation can increase genetic variation within a population by introducing new genetic variations through changes in DNA sequence.
♻️♻️SALIENT POINT ON TAXONOMY
♻️Barnacles belongs to what phylum?
Ans: Phylum Arthropoda
♻️The head and thorax of crustacean is called ?
Ans: Cephalothorax
♻️The hard plate that covers the cephalothorax
of prawns is known as?
Ans:carapace.
♻️What does prawns use for swimming?
Ans: Swimmerets
♻️What does prawns use for swimming backwards ?
Ans. Tail plates
♻️What does crustacean use in carrying
gaseous exchange?
Ans: Gill
♻️The only invertebrates that can fly is known
as?
Ans: Insect
♻️Which part of the grasshopper is sensitive
to sound?
Ans: Tympanum
♻️What does myriapods use in carrying
gaseous exchange?
Ans: Trachea
♻️What does spiders use
for breathing?
Ans: Trachea or Book lung
♻️What phylum does starfish belong to?
Ans: Phylum Echinodermata
.
♻️What is the body symmetry of Echinoderms
Ans: Radially symmetrical
♻️Which phylum has no head and brain?
Ans: Phylum Echinodermata
♻️The most primitive species underclassPisces is?
Ans: Hagfish and
Lamprey
♻️The largest and the most successful group of fish is
Ans :Bony fiches (Tilapia and Carp)
♻️What covers the gill of a fish?
Ans: Operculum(gill cover)
♻️Which part of the fish is Sensitive to vibration
Ans; Lateral line
♻️Which part of the fish helps to detect change in water pressure ?
Ans: Lateral line
The genetic makeup of an organism is referred to as
_genotype✅
_phenotype
Who propounded the theory of natural selection
_Darwin ✅
_Larmack
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KEY POINTS TO NOTE
KEY POINTS IN ENGLISH
English
synonyms
Antonyms
Nearest in meaning
Comprehension passage
The life changer
Rhymes
Sounds
List synonyms and antonyms
Pandemonium
Industrious
Indolent
Professional
KEY POINTS IN PHYSCIS
Physics
PHYSICS
1.Calculation on Electrolysis
2.Calculation on Flux Density
3.Unit of flux density
4.Calculation on tension
5.Calculation on relative humidity
6.Calculations on Half life (simple ones sha)
KEY POINTS IN CHEMISTRY
Chemistry
Electrolysis
Separation technique
Rate of rxn
Question on effect of temperature and pressure on products sha
Periodic table
Which gas causes acid rain
Organic chemistry
KEY POINTS IN BIOLOGY
Biology
Adaptation
Evolution
Ecology
Skeletal system just like one question sha
Homeostasis
Nutrition( which is a water-soluble vitamin)
Variation
A question on expiration sha
Biology
Millons reagent is used for
Benedict’s reagent is used for
Calculation of population density
Question on convergent evolution
Ultrafiltration occurs in
What are allomorph
1.Sum total of all gene content in a population is?
A,Gene Drift
B.Gene flow
C.Gene pool
D.Genotype
2.Whats the circulation of blood from heart to lungs called?
3.Function of allemorphs(I picked the control contrasting characters sha)
4.What makes Litoral zone?
5.Read classification Wella 🌚
6.which organism has a defined nucleus (I choose Amoeba amongst the options)
♻️🌷SEPALS.
➖Sepal is the outermost whorl of a flower greenish in colour…
➖They protect the flower(essential parts) during bud stage.
NB✍️Separated sepal are called (polysepalous) .
Fused sepals (gamosepalous) ..
➖When a petal looks like a sepal they are are collectively knows as parianth.
NB: A single unit of parianth is called (Tepal).
➖When a petal has the same colour with a sepals it is knows as sepaloid.
♻️🌷STAMEN.
➖stamen is the male reproductive organs of a flower.
➖Stamen is collectively known as androecium.
➖ The stamen consist of the filament and the ather .
♻️🌷CARPEL.
➖Carpel is the female reproductive organ of a flower.
➖Carpel is collectively known as gynoecium.
NB✍️Flowers 🌷with two or more separated carpel is (apocarpous)
NB✍️Flowers 🌷with two or more fused carpel is (syncarpous).
✍️A separated carpel or a single structure of several fused carpel is called the pistil
✍️The carpel/Pistil is made up of.
➖ovary.
➖style.
➖Stigma.
NB✍️The stigma is the surface of the apical part of the style that receives pollen grain.
NB✍️The style holds the stigma in the best position to receive the pollen grain..
♻️MICRO ORGANISM
Micro organism are said to be ubiquitous because,they are found almost everywhere
Micro organisms are referred to as disease causing agent called pathogens
♻️Some group of micro organisms include
Virus, bacteria, blue green algae, protists.
certain fungi and algae
✍️The smallest and simplest group of micro
organism that lacks cell structure is the virus
✍️The only group of organism that can crystallized is also virus
✍️Bacteria and blue green algae exist as
prokaryotic cells.
✍️The technique of growing micro organism
in the laboratory is called Culture
The instrument Petri dish is used for culturing micro organisms
.
✍️Virus cannot be grown in culture medium because they only grow inside the body cell
Of living organisms because t
What are the types of stain used in identifying micro organisms🤔🤔.
- Simple stain (e.g. methylene blue and
crystal violet) - Differential Grain stain.
✍️ Simple stain brings out the shape, size and cell
arrangement of micro organism…
✍️Micro organism that requires oxygen are
known as Aerobes
Micro organisms that grow and multiply in the absence of oxygen are known as obligate anaerobes..
Micro organism that grows in the presence or absence of oxygen are known as Fucultative anaerobes..
Micro organisms found in the intestine of vertebrae are known as Coli form eg the salmonella typhi, Escherichia coli
NB✍️ they are also found in the skin.
✍️Living agent that carries micro organism From one place to another are called Vectors
✍️The disease causing agent carried by vectors are called Pathogens..
✍️The field of study where micro organisms are use in industrial processes ,medicine, agriculture, water treatment and waste disposal is termed is knows Biotechnology
♻️♻️SALIENT POINT ON TAXONOMY
♻️Barnacles belongs to what phylum?
Ans: Phylum Arthropoda
♻️The head and thorax of crustacean is called ?
Ans: Cephalothorax
♻️The hard plate that covers the cephalothorax
of prawns is known as?
Ans:carapace.
♻️What does prawns use for swimming?
Ans: Swimmerets
♻️What does prawns use for swimming backwards ?
Ans. Tail plates
♻️What does crustacean use in carrying
gaseous exchange?
Ans: Gill
♻️The only invertebrates that can fly is known
as?
Ans: Insect
♻️Which part of the grasshopper is sensitive
to sound?
Ans: Tympanum
♻️What does myriapods use in carrying
gaseous exchange?
Ans: Trachea
♻️What does spiders use
for breathing?
Ans: Trachea or Book lung
♻️What phylum does starfish belong to?
Ans: Phylum Echinodermata
.
♻️What is the body symmetry of Echinoderms
Ans: Radially symmetrical
♻️Which phylum has no head and brain?
Ans: Phylum Echinodermata
♻️The most primitive species under class
Pisces is?
Ans: Hagfish and
Lamprey
♻️The largest and the most successful group of fishes is
Ans :Bony fiches (Tilapia and Carp)
♻️What covers the gill of a fish?
Ans: Operculum(gill cover)
♻️Which part of the fishb is Senstive to vibration
Ans; Lateral line
♻️Which part of the fish helps to detect change in water pressure ?
Ans: Lateral line
♻️♻️SALIENT POINTS ON TAXONOMY
♻️Organisms with false body cavity are known as
Ans:psuedo colomates
♻️Sponges belongs to what phylum?
Ans: phylum porifera
♻️What is the shape of sponges?
Ans: Vase-shaped
♻️The flagellated cells in the inner layer of sponges is known as what?
Ans: collar cells
♻️Coral polyps belongs to what phylum?
Ans:Phylum coelenterate (others are
hydra, sea ancmone, jelly fish)
♻️What is the body symmetry of hydra?
Ans: Radially symmetrical
♻️ What type of coelenterates does hydra belongs to ?
Ans: Polyp
Note: Sea anemone and coral also belong to polyp
♻️What type of coelenterates does jelly fish
belongs to?
Ans:medusa
♻️The umbrella form of coelenterates is
Ans: medusa
♻️The gelatinous layer in between the outer
and the layers is called?
Ans: Mesogloea
The cells present in the tentacles of hydra is
called?
Ans: stinging cells or nematocytes
♻️What does hydra use in feeding?
Ans: Tentacles
♻️The asexual reproduction of hydra is
Ans: budding
♻️ What is the function of the basal disc in
hydra?
Ans: for attachng substratum
.
♻️What is the body cavity of platyhelmithis ?
Ans: Acoclomate
♻️What is the body symmetry of platyhelmithis
Ans: Bilaterally symmetrical
♻️What Platyhemithis free-living?
Ans:planaria
♻️♻️SALIENT POINT ON TAXONOMY
♻️Stem that grows horizontally
are called what?
Ans: Rhizome
♻️The leaves of a fern is called?
Ans: fronds
♻️Under kingdom plantae, which phylum is
Regarded as a “true land plant”?
Ans: Spermatophyte (seed plant)
Note: Why, because water is not needed during fertilization
♻️The secd of Gymnosperm are borne in a
special structure called?
Ans: Cones
♻️The seed of Gymnosperm do not bear
flowers and have naked seeds.
Of all gymnosperm, which is the most important ?
Ans: conifer e.g. pine, fir and spruce
♻️What is the largest group in plant kingdom?
Ans: Angiosperm
♻️Why is angiosperm highly evolved than
gymnosperm?
Ans: because they_ have an abundance of
water-conducting vessels and bear seeds which are protected within fruits
♻️How is fruits developed?
Ans: fruits are developed from the ovaries of a flower
♻️The most primitive angiosperm is known as
what?
Ans: Dicotyledon
♻️The most advanced angiosperm is known
as?
Ans: Monocotyledon
Note:
Monocotyledon_do not exhibit
secondary growth. All cereals plants are monocotyledon .
♻️The primary layers of cells in an embryo of
an animal is called what?
Ans: Germ layers
♻️Organism with no body cavity are known
as?
Ans: Acoelmates
🧠♻️SALIENT POINT ON TAXONOMY
♻️ What kingdom does toad stools belongs to?
Ans: Kingdom fungi
♻️Of all fungi, which is non-motile?
Ans: Slime mould
Note Slime inould have no rigid cell wall
♻️A branching thread-like structures in fungi
are called?
Ans: Hyphae
♻️A group of hyphae are known as?
Ans: mycelium
♻️What serves as the Penetrating rod in fungi
Ans: Hyphae.
♻️The hyphae wall of fungi are made up of what
Ans: Chitin
♻️Fungi stored foods in form of?
ANS:: Glycogen
♻️The vegetative body of fungi is known as?
Ans: Soma or somatiie body or somatic thallus
♻️3 The absorptive branches of saprophytic
fungi are called?
Ans: Rhizoid
♻️The absorptive branches of parasite fungi
yare called?
Ans: Haustoria
♻️A fungi spores without cell wal!! are known
as?
Ans: Pseudospores
Algae reproduce asexually by a means of
what?
Ans: cell division and fragmentation
♻️Spirogyra, volvox, sargassium and ulva
belongs to what phylum?
Ans: Phylum thallophyta
♻️Liverworts and mosses belongs to what phylum ?
Ans: Phylum Bryophyta
♻️What phylum is regarded as amphibian
plant kingdom?
Ans: Phylum Bryophyta
♻️Why is phylum bryophyte regarded as
amphibian of plant kingdom?.
Ans:because water
fertilization is essential for fertilization
♻️Tracheophytes are known as what?.
Ans:Vascular plants(because they have vascular tissue for conducting water and food)
♻️🧠SALIENT POINT ON TAXONOMY
♻️Bacteria that are spherical or round in shape
/are known as?
Ans: Coccus
♻️Bacteria that are rod-like in shape are
Known as?
Ans: Bacillus.
♻️Bacteria that exist in long chains are known as
Ans: Streplococci
♻️Bacteria that exist in clusters are known as’?
Ans: Staphylococci
♻️Bacteria that ‘are spiral in shape are known
As?
Ans: Spirochaetės
♻️Bacteria that are comma-like in shape are
known as?
Ans: Vibrios bacteria
♻️What type of Ascxual Reproduction does
bacteria use to carry out reproduction?
Ans: Binary fission
♻️A cell division that occurs during asexual
reproduçtion is knewn as?
Ans: Mitosis
♻️Virus that attack bacteria are callcd?
Ans: Bacteriophage
♻️Virus that attacks viruses are called?
Ans:viriophage.
♻️Give exmpici of blue-green algae
Ans: Nostoc, Oscilatoria and Anabaena
♻️Which kingdom does prokaryoies belongs
To?
Ans: Kingdom Monera(barteria and biue-
green algae)
♻️What is the other name of pseudopodia?
Ans: False foot
Which organisım has both “plant-like and
‘animal-like” features?
Ans: Euglena viridis
The plasıma membrane of Euglena is cailed
Ans’ Peicle (which is tne “aninal-like features
♻️What does Trichomonas uses for movement
Ans: Flagella
♻️What class under phylum protozoa has no
organelle for novement”.
Ans:sporozoa,eg(plasmodium)
