Biology Practice Test 2

Biology Practice Test 2 is designed to help students strengthen their understanding of key biological concepts, theories, and processes for competitive entry tests like MDCAT, NUMS, AKU, UET, ECAT, NTS, as well as FSC Board Exams. This test covers topics from molecular biology, cell division, human physiology, plant physiology, and more, helping students improve accuracy and retention.

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Biology Practice Test 2

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1 / 100

Category: Biology Ch 8 Class 12

The total number of genes present in a particular population, at a particular time is called:

NUMS 2019 Cancelled
Biology
Variation and Genetics
Elimination Tool:

A) Gene

B) Genome

C) Genotype

D) Gene Pool

2 / 100

Category: Biology Ch 10 Class 12

Which one is NOT a continuous trait?

NUMS 2019 Reconduct
Biology
Evolution
Elimination Tool:

A) Human height

B) Tongue rolling

C) Wheat grain color

D) Human skin color

3 / 100

Category: Biology

Q.7 A neuron located in the cential hervous system that projects its axon outside the CNS is called:

A. Motor nerve

B. Sensory nerve

C. Both A and B

D. Mixed nerve

4 / 100

Category: Biology

Q.32 Which one of the following is not a feature of the nervous system of Planaria?

A. Neurons are differentiated into sensory, motor and associative neurons.

B. Nerves are present.

C. No specialized sensory organs are present

D. All of the above.

5 / 100

Category: Biology Ch 3 Class 11

Which statement about enzyme is incorrect:

Some of them consist solely of protein with no non protein part.

They catalyze a chemical reaction without being utilized.

All enzymes are fibrous Proteins.

They without their cofactor are called apoenzyme.

6 / 100

Category: Biology Ch 6 Class 12

Within the chromosomes, each chromatid contains ______ DNA molecule:

NUMS 2020
Biology
Chromosomes and DNA
Elimination Tool:

A) One

B) Two

C) Three

D) Half

7 / 100

Category: Biology Ch 7 Class 12

Smooth endoplasmic reticulum is responsible for the metabolism of:

UHS 2019
Biology
Cell Cycle
Elimination Tool:

A) Nucleic acids

B) Proteins

C) Carbohydrates

D) Lipids

8 / 100

Category: Biology Ch 13 Class 11

The irritant substances of smoke cause smoker’s cough which weakened and bursts:

NUMS 2019 Reconduct
Biology
Gaseous Exchange
Elimination Tool:

A) Bronchi

B) Bronchiole

C) Alveoli

D) Trachea

9 / 100

Category: Biology Ch 4 Class 11

Etioplasts found in plants are actually one of the types of:

NUMS 2015
Biology
Cell Structure and Function
Elimination Tool:

A) Chloroplasts

B) Chromoplasts

C) Leucoplasts

D) None of the given options

10 / 100

Category: Biology

Q.27 During which of the following levels of biological organization can natural selection occur?

A. Gene

B. Individual

C. Group

D. All of these

11 / 100

Category: Biology

Booklungs serve the function of respiration in:

NUMS Mock 3
Biology
Gaseous Exchange

A) Scorpion

B) Earthworm

C) Frog

D) Cockroaches

12 / 100

Category: Biology Ch 10 Class 12

The process that has transformed life on earth from its earliest forms to vast diversity is

Mutation

Evolution

Migration

Genetic drift

13 / 100

Category: Biology

The branch of science dealing with the fossil record is called:

NUMS Mock 2
Biology
Biology and its Major Fields of Specialization

A) Genetics

B) Taxonomy

C) Archeology

D) Palentology

14 / 100

Category: Biology

Q.18 The internal buds are known as which of the following?

A. Spicules

B. Choanocytes

C. Gemmules

D. Both A and B

15 / 100

Category: Biology

Q.16 Which of the following changes length during sarcomere contraction?

A. Thick filaments

B. Thin filaments

C.H zone

D. all of these Inco

16 / 100

Category: Biology

The Latin words of the name given to a human being, Homo Sapiens, include the:

NUMS Mock 1
Biology
Bio-diversity | Variety of Life

B) Family and order

C) Order and class

D) Genus and class

E) Genus and species

17 / 100

Category: Biology Ch 3 Class 12

Which of the following neurotransmitters function, both as neurotransmitter and hormones, decreasing our perception of pain?

PMC 2020
Biology
Coordination and Control
Elimination Tool:

A) Epinephrine

B) Serotonin

C) Dopamine

D) Endorphins

18 / 100

Category: Biology Ch 9 Class 12

Which one of the following options is NOT an example of genetic engineering?

NTS 2019
Biology
Biotechnology
Elimination Tool:

A) Insulin-producing bacteria

B) Oil eating bacteria

C) Photosynthetic bacteria

D) Metal extracting bacteria

19 / 100

Category: Biology Ch 5 Class 12

Thymus is found in the human body in _____.

PMC Practice 2
Biology
Growth and Development
Elimination Tool:

A) The medulla oblongata

B) The mediastinum of the upper thorax

C) Both Options A and B are correct

D) None of these options is correct

20 / 100

Category: Biology Ch 9 Class 11

Chlorophyta is considered to be closest to plants but do not resemble plants in having:

NUMS 2020
Biology
Kingdom Plantae
Elimination Tool:

A) Chlorophyll a and b

B) Starch as stored food

C) Cellulose cell wall

D) Multicellular sex organs

21 / 100

Category: Biology

Q.30 The structure of which bacteriophages resembles a tadpole?

A. T2

B. T4

C. Both A and B

D. None

22 / 100

Category: Biology Ch 1 Class 12

When the temperature of the surrounding environment rises, body responds by:

PMC 2020
Biology
Homeostasis
Elimination Tool:

A) Vasoconstriction

B) Vasodilation

C) Shivering

D) Raising body hairs

23 / 100

Category: Biology

Q.52 The plasma pool of antibodies is synthesized from:

A. T- lymphocytes

B. Plasma cells

C. B- lymphocytes

D. Fibroblasts

24 / 100

Category: Biology Ch 5 Class 12

A bean seed contains all of the following except:

NTS 2012
Biology
Growth and Development
Elimination Tool:

A) A seed coat

B) An epicotyl

C) A hypocoty

D) A hypha

25 / 100

Category: Biology Ch 13 Class 12

Which one is a non-renewable resource?

Wild life

Forests

Natural gas

Land

26 / 100

Category: Biology Ch 3 Class 11

The cofactor usually acts as “bridge” between:

NUMS 2018
Biology
Enzymes
Elimination Tool:

A) Enzyme & substrate

B) Enzyme & product

C) Coenzyme & substrate

D) Activator & substrate

27 / 100

Category: Biology Ch 13 Class 12

In oceans of tropical regions

Temperature of surface water is 40?C and 10?C at depth

Temp of surface water is 25?C and 5?C at depth

Surface water 50?C and depth 20?C

Surface water 10?C and depth 15?C

28 / 100

Category: Biology Ch 8 Class 12

Continuous variations in a population were first observed by:

NUMS 2015
Biology
Variation and Genetics
Elimination Tool:

A) Mendel

B) Correns

C) Nilsson

D) Darwin

29 / 100

Category: Biology

What are the functions of the inter, motor and sensory neurons in a reflex response?

NUMS Mock 4
Biology
Coordination and Control

A) Option A

B) Option B

C) Option C

D) Option D

30 / 100

Category: Biology Ch 12 Class 11

Which of the following nutrients is incorrectly paired with its function in a plant?

NTS 2016 SMBBMC
Biology
Nutrition
Elimination Tool:

A) Potassium – Formation of cell wall.

B) Magnesium – Constituent of chlorophyll.

C) Nitrogen – Constituent of protein.

D) Phosphorus – Component of nucleic acid.

31 / 100

Category: Biology Ch 12 Class 11

Optimum pH for action of pepsin and salivary amylase is

NTS 2016 DUHS & JSMU
Biology
Nutrition
Elimination Tool:

A) 3.5 and 7.7 respectively

B) 1.8 and 6.8 respectively

C) 6.8 and 7.4 respectively

D) 1.8 and 7.4 respectively

32 / 100

Category: Biology

Q.20 Cytochromes are electron transport intermediates containing?

A. myoglobin

B. heam

C. globulin

D. fibrin

33 / 100

Category: Biology Ch 3 Class 12

Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering:

Gibberellins

Cytokinins

Auxins

Ethene

34 / 100

Category: Biology Ch 3 Class 12

_________ is sometimes given by injection as an emergency treatment in cardiac arrest:

NUMS 2020
Biology
Coordination and Control
Elimination Tool:

A) Acetylcholine

B) Dopamine

C) Serotonin

D) Epinephrine

35 / 100

Category: Biology Ch 13 Class 11

Smaller the animals:

NUMS 2014
Biology
Gaseous Exchange
Elimination Tool:

A) More rate of respiration

B) Less the rate of respiration

C) Rate of respiration has nothing to do with the size of animal

D) None of these

36 / 100

Category: Biology

Q.51 The water splitting step of photosynthesis is called?

A Hydrolysis

B. Chemiosmosis

C. Photolysis

D. Photosynthesis

37 / 100

Category: Biology Ch 10 Class 11

Of the following which one is not found in series proterostomia.

Annelida

Arthropoda

Mollusea

Echinodermata

38 / 100

Category: Biology Ch 11 Class 12

Mosses are

Dermatocarpon

Permellia

Tortula

Both b and c

39 / 100

Category: Biology

Which of the following animals can survive without drinking water?

NUMS Mock 4
Biology
Nutrition

A) Kangaroo rat

B) Pig

C) Kangaroo

D) Camel

40 / 100

Category: Biology

Which of the following, which is the incorrectly paired one?

NUMS Mock 2
Biology
Biology and its Major Fields of Specialization

B) Schlelden and schwann … cell theory

C) Robert Brown… nucleus

D) Watson and Crick … DNA model

E) Virchow… mosaic model of plasma membrane

41 / 100

Category: Biology Ch 3 Class 12

Which of the following is not the function of the cerebrum?

NUMS 2016
Biology
Coordination and Control
Elimination Tool:

A) Voluntary digestion

B) Thinking

C) Intelligence

D) Skeletal muscles

42 / 100

Category: Biology

Q.51 The heavy and light chains of an antibody molecule is held together by:

A. H-bonds

B. Disulphide bridges

C. Ionic interactions

D. Hydrophobic interactions

43 / 100

Category: Biology Ch 10 Class 11

The simplest form in Kingdom Animalia belongs to:

NUMS 2018
Biology
Kingdom Animalia
Elimination Tool:

A) Eumetazoa

B) Bilateria

C) Protozoa

D) Parazoa

44 / 100

Category: Biology Ch 4 Class 11

_______ organelles are involved in the synthesis of the plant cell wall.

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool:

A) Endoplasmic reticulum

B) Golgi complex

C) Lysosomes

D) Peroxisomes

45 / 100

Category: Biology

Lymph nodes are not present:

NUMS Mock 1
Biology
Coordination and Control

A) Neck region

B) Axilla

C) Groin

D) Spleen

46 / 100

Category: Biology

Q.12 In enzymatic mechanism, the substrate bind to enzyme active site to produce?

A. Reactants

B. Enzyme

C. Products

D. all of these

47 / 100

Category: Biology Ch 4 Class 11

_______ is involved in lipid synthesis/metabolism.

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool:

A) Smooth endoplasmic reticulum

B) Rough endoplasmic reticulum

C) Mitochondria

D) Vacuoles

48 / 100

Category: Biology Ch 11 Class 11

In electron transport chain, ATP synthesis takes place when electrons move from:

PMC 2020
Biology
Bioenergetics
Elimination Tool:

A) Primary Electron Acceptor (PEA) to Plastoquinone (Pq)

B) Plastoquinone (Pq) to cytochromes

C) Cytochrome to Plastocyanin (Pc)

D) Plastocyanin (Pc) to Photosystem I (PS I)

49 / 100

Category: Biology Ch 4 Class 11

Percentage of proteins in cell membrane is

20-40%

40-50%

60-80%

80-100%

50 / 100

Category: Biology Ch 4 Class 12

Luteinizing hormone, which is produced by the pituitary gland, promotes ovulation and stimulate the ovaries to produce:

NUMS 2019 Cancelled
Biology
Reproduction
Elimination Tool:

A) Estrogen

B) Estrogen and progesterone

C) Progesterone

D) Oxytocin

51 / 100

Category: Biology Ch 9 Class 12

Enzyme used by the Bacteria to cut the DNA of the invading Virus for its protection is:

UHS 2018
Biology
Biotechnology
Elimination Tool:

A) Restriction Exonuclease

B) Restriction Ligase

C) Restriction Endonuclease

D) DNA polymerase

52 / 100

Category: Biology Ch 7 Class 12

_______ is the most critical phase of mitosis.

NUMS 2015
Biology
Cell Cycle
Elimination Tool:

A) Prophase

B) Telophase

C) Anaphase

D) Metaphase

53 / 100

Category: Biology Ch 6 Class 12

The genotype of a normal male in humans is ______ chromosomes.

NTS 2012
Biology
Chromosomes and DNA
Elimination Tool:

A) 44 + XX

B) 44 + XY

C) 44 + XXY

D) 44 + XO

54 / 100

Category: Biology

The Porifera are pore – bearing animals, commonly called:

NUMS Mock 3
Biology
Kingdom Animalia

A) Corals

B) Sponges

C) Hydras

D) Anemones

55 / 100

Category: Biology Ch 13 Class 11

The number of stomata present per cm2 of leaf is:

PMC Sample 2
Biology
Gaseous Exchange
Elimination Tool:

A) Less than 100

B) 1,000 to 60,000

C) One million

D) None of the above

56 / 100

Category: Biology Ch 5 Class 11

The word virus is derived from Latin word venome meaning

Sweet fluid

Sore Fluid

Poisonous Fluid

Salty Fluid

57 / 100

Category: Biology Ch 10 Class 11

The only aquatic arthropods:

PMC Sample 1
Biology
Kingdom Animalia
Elimination Tool:

A) Crustaceans

B) Arachnids

C) Myriapods

D) Gastopods

58 / 100

Category: Biology

Q.18 Pick the incorrect pair:

A. Lovastatin – Lowers blood cholesterol

B. Cyclosporine – Prevents transplant rejection

C. Ergotine -Migraine relieve

D. Griseofulvin – Inhibit bacterial growth

59 / 100

Category: Biology Ch 9 Class 12

Gel electrophoresis is a technique:

PMC 2020
Biology
Biotechnology
Elimination Tool:

A) Employed by forensic scientist to assist in the identification of the individuals by their respective type of DNA

B) Collect all the genes found in one complete set of chromosome

C) Is a technique to separate different sizeds fragment of charge bearing polymers (proteins, RNA or DNA)

D) Grows single cell or a group of cells in a glass ware on artificial medium under aseptic conditions

60 / 100

Category: Biology Ch 9 Class 11

The gametophyte of Ulva is:

NUMS 2014
Biology
Kingdom Plantae
Elimination Tool:

A) Haploid

B) Diploid

C) Triploid

D) Polyploidy

61 / 100

Category: Biology Ch 7 Class 12

Condensation of chromosomes reaches to the maximum during:

NUMS 2015
Biology
Cell Cycle
Elimination Tool:

A) Zygote

B) Pachytene

D) Diakinesis

C) Diplotene

62 / 100

Category: Biology Ch 10 Class 11

Which vertebrate groups have scaly skin?

NTS 2013
Biology
Kingdom Animalia
Elimination Tool:

A) amphibians and fish

B) amphibians and mammals

C) fish and mammals

D) fish and reptiles

63 / 100

Category: Biology Ch 8 Class 11

The ecological role of fungi as decomposers is paralleled only by

UHS 2010
Biology
Kingdom Fungi
Elimination Tool:

A) Prions

B) Algae

C) Bacteria

D) Viruses

64 / 100

Category: Biology Ch 4 Class 12

Duration of menstrual cycle is how many days on average?

PMC Sample 1
Biology
Reproduction
Elimination Tool:

A) 25

B) 26

C) 27

D) 28

65 / 100

Category: Biology Ch 7 Class 11

In which of the following growth phases, the number of bacteria increases the most rapidly?

NTS 2018
Biology
Kingdom Protista
Elimination Tool:

A) Lag phase

B) Log phase

C) Stationary phase

D) Death / Decline phase

66 / 100

Category: Biology Ch 11 Class 11

In the Calvin cycle, the reducing power from NADPH is used during:

NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:

A) Formation of 1, 3- Bisphosphoglycerate

B) Conversion of 1, 3- Bisphosphoglycerate to Glyceraldehyde 3- phosphate

C) Formation of fructose 1, 6- bisphosphate from 1, 3- bisphosphoglycerate

D) Formation of glucose from fructose bisphosphate

67 / 100

Category: Biology Ch 6 Class 11

Which of the following bacteria do not have flagella commonly?

Cocci

Bacilli

Streptobacilli

Vibrio

68 / 100

Category: Biology Ch 12 Class 11

Fear of getting obese is termed as:

NUMS 2019 Cancelled
Biology
Nutrition
Elimination Tool:

A) Bulimia nervosa

B) Anorexia nervosa

C) Dyspepsia

D) Obesity

69 / 100

Category: Biology Ch 1 Class 11

Oxygen accounts for ____ % of totals human body mass:

65%

18%

10%

70 / 100

Category: Biology

At what point are two populations descending from the same ancestral stock considered separate species?

NUMS Mock 4
Biology
Evolution

A) When they can no longer produce viable, fertile offspring

B) When they look significantly different from each other

C) When they can interbreed successfully and produce offspring

D) When their habitats are separated by a significantly large distance so that they cannot meet

71 / 100

Category: Biology Ch 14 Class 11

Highest blood pressure is found in:

NUMS 2015
Biology
Transport
Elimination Tool:

A) Arteries

B) Veins

D) None of the given options

C) Capillaries

72 / 100

Category: Biology Ch 10 Class 12

There existed two varieties of female freshwater Mollusks in which some were streamlined and some had a high bulge. Over the generations, male freshwater Mollusks learned that high bulge favors more production of offspring. So they started preferring to mate with females having high bulge as compared to streamlined. Will this affect Hardy Weinberg Equilibrium in the population?

NTS 2019
Biology
Evolution
Elimination Tool:

A) No, it will not affect the Hardy Weinberg equilibrium

B) Yes, it will affect the Hardy Weinberg equilibrium

C) It will help to balance equilibrium

D) The Hardy Weinberg equilibrium doesn't apply here

73 / 100

Category: Biology Ch 1 Class 11

In animals coordination is achieved by means of

Respiratory system

Nervous system

Endocrine system

Both b and c

74 / 100

Category: Biology Ch 7 Class 11

Which of the following statement about Kingdom Protista is incorrect?

Their members have characteristics which separate them from other kingdoms

They only include unicellular aquatic eukaryotic organisms.

They do not develop from Blastula or embryo.

They contain ancestors for fungi plants & animals

75 / 100

Category: Biology

Q.65 Which one of the following is the attribute of Lamarckism?

A. Natural selection

B. Inheritance of acquired characteristics

C. Struggle for existence

D. Production of more individuals

76 / 100

Category: Biology Ch 10 Class 11

Which organism has wings with claws?

NUMS 2015
Biology
Kingdom Animalia
Elimination Tool:

A) Eagle

B) Kestrel

C) Archaeopteryx

D) Mallard

77 / 100

Category: Biology

Process ensuring the survival of species over long periods of time, even though individual members of the species die.

NUMS Mock 2
Biology
Man and His Environment

A) Reproduction

B) Adaptability

C) Mitosis

D) Respiration

78 / 100

Category: Biology Ch 3 Class 12

Gibberellins may be substituted for _____ light, therefore promote flowering in long day plants.

White

Red

Blue

Green

79 / 100

Category: Biology

Pseudopodia are:

NUMS Mock 1
Biology
Support and Movement

A) False feet developed in some unicellular organisms

B) Small hairlike structures present on the unicellular organisms

C) Long, tube like structures coming out of the mouth

D) Suckers which are attached to the walls of intestines

80 / 100

Category: Biology Ch 3 Class 11

The type of energy, reduced by the enzymes, for biological reactions to occur is called the:

UHS 2019
Biology
Enzymes
Elimination Tool:

A) Light Energy

B) Heat energy

C) Active energy

D) Activation energy

81 / 100

Category: Biology

Q.17 Teichoic acids are the characters of:

A. Gram Positive bacteria

B. Mycoplasma

C. Gram Negative bacteria

D. Archaeobacteria

82 / 100

Category: Biology Ch 4 Class 11

Tay Sach’s disease is caused by absence of enzyme required to breakdown ____________.

NUMS 2014
Biology
Cell Structure and Function
Elimination Tool:

A) Lipids

B) Glycogen

C) Glucose

D) Proteins

83 / 100

Category: Biology Ch 5 Class 12

_____ cells store surplus food and _____ cells produce new cells for growth and development of the plant:

NUMS 2019 Cancelled
Biology
Growth and Development
Elimination Tool:

A) Parenchymatous: meristematic

B) Sclerenchymatous; chlorenchymatous

C) Phloem; Meristematic

D) Parenchymatous; Chlorenchymatous

84 / 100

Category: Biology Ch 7 Class 12

Synthesis of microtubules increases in:

UHS 2018
Biology
Cell Cycle
Elimination Tool:

A) M phase

B) S phase

C) G1 phase

D) G2 phase

85 / 100

Category: Biology Ch 12 Class 11

Midgut in cockroach is a short narrow tube called

Hepatic caeca

Gizzard

Stomach

Rectum

86 / 100

Category: Biology Ch 9 Class 12

Which of the following is the manipulation of genetic material for practical purposes?

NTS 2018
Biology
Biotechnology
Elimination Tool:

A) Grafting

B) Tissue Culture

C) Genetic Engineering

D) Cell Culture

87 / 100

Category: Biology

The inhibitor which closely resembles the substrate in its molecular structure and inhibits the enzyme activity by binding to the active site of the enzyme is called:

NUMS Mock 4
Biology
Enzymes

A) Feedback inhibitor

B) Non-competitive inhibitor

C) Allosteric modulator

D) Competitive inhibitor

88 / 100

Category: Biology Ch 13 Class 11

Which one of the following is a genetic disorder in which abnormally thick mucus is produced in the lungs and other parts of the body?

NUMS 2020
Biology
Gaseous Exchange
Elimination Tool:

A) Lung cancer

B) Chronic bronchitis

C) Cystic fibrosis

D) Emphysema

89 / 100

Category: Biology

Q.65 Which of the following statements about the systemic affect of bacterial cells are true?

A. Gram-negative bacteria are more likely to cause systemic effects because their lack of an outer membrane means they can more quickly infect host cells.

B. Gram-negative bacteria are more likely to cause Systemic effects because the outer membrane protects them from antibiotics

C. Both A and B

D. None of these

90 / 100

Category: Biology Ch 6 Class 11

If lipopolysaccharides did not appear in the wall of bacteria on staining then it will be known as ________.

UHS 2018
Biology
Kingdom Prokaryote
Elimination Tool:

A) Gram negative

B) Gram positive

C) Capsule

D) Both Gram positive & negative

91 / 100

Category: Biology Ch 2 Class 12

Select a sessile zooflagellate:

NUMS 2020
Biology
Support and Movement
Elimination Tool:

A) Trichonympha

B) Trypanosoma

C) Choanoflagellate

D) Euglena

92 / 100

Category: Biology Ch 5 Class 12

Wood is not formed in:

NUMS 2015
Biology
Growth and Development
Elimination Tool:

A) Monocots

B) Dicots

C) Gymnosperms

D) All of given

93 / 100

Category: Biology Ch 13 Class 12

Wind blows from area of

Low pressure to high pressure

High pressure to low pressure

Moderate pressure to high pressure

Low pressure to low pressure

94 / 100

Category: Biology Ch 6 Class 12

Which statement correctly describes the transcription of DNA?

PMC 2020
Biology
Chromosomes and DNA
Elimination Tool:

A) It produces amino acids

B) It produces messenger RNA

C) It results in increased DNA synthesis

D) It is a semi conservative process

95 / 100

Category: Biology

The prolactin hormone, responsible for the activation of mammary glands to start producing milk, is a hormone of the:

NUMS Mock 3
Biology
Coordination and Control

A) Pituitary gland

B) Pancreas

C) Thyroid gland

D) Thymus gland

96 / 100

Category: Biology Ch 10 Class 12

Analogous organs show

Convergent evolution

Divergent evolution

Straight evolution

Zig-zag evolution

97 / 100

Category: Biology Ch 13 Class 11

______ respiration is the process by which cell utilized oxygen and produces CO2

Cellular

Organismic

Both of these

None of these

98 / 100

Category: Biology Ch 3 Class 11

Excessive increase in temperature of medium causes the enzyme molecule to

Activate

Unaffected

Denatured

None of these.

99 / 100

Category: Biology Ch 4 Class 12

Which one of the following represents the changes that occur in the ovary and the uterus approximately every 28 days involving ovulation with the breakdown and loss of the lining of the uterus?

PMC 2020
Biology
Reproduction
Elimination Tool:

A) Ovulation

B) Menstrual cycle

C) Uterine cycle

D) Embryo formation

100 / 100

Category: Biology

What type of atom is the carbon atom?

NUMS Mock 2
Biology
Biological Molecules

A) Divalent

B) Monovalent

C) Trivalent

D) Tetravalent

Your score is

The average score is 57%

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