Biology Practice Test 4

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Biology Practice Test 4

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1 / 100

Category: Biology Ch 14 Class 11

In the human body, blood circulating from the gut to the heart passes through the:

NTS 2013
Biology
Transport
Elimination Tool:

A) aorta

B) kidneys

D) lungs

C) llver

2 / 100

Category: Biology Ch 5 Class 12

Determinate growth is

. Growing continuously

Fluctuating growth

Grow to certain size and then stop

Vegetative roots and shoots grow by

3 / 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

4 / 100

Category: Biology Ch 4 Class 12

Egg-laying mammals are called:

NUMS 2016
Biology
Reproduction
Elimination Tool:

A) Prototheria

B) Protozoa

C) Chordata

D) Monotremes

E) Both A and D

5 / 100

Category: Biology Ch 3 Class 11

An activated enzyme made of polypeptide chain and a cofactor is?

PMC Practice 2
Biology
Enzymes
Elimination Tool:

A) Substrate

B) Coenzyme

C) Apoenzyme

D) Holoenzyme

6 / 100

Category: Biology Ch 6 Class 12

In alkaptonuria

Patient's urine contains homogenetisic acid

Urine becomes black

Both a and b

Urine contains phenylalanine

7 / 100

Category: Biology

The photosynthetic pigments of plants are arranged as clusters in thylakoid membranes. The reaction centers of these clusters consist of _____ molecules.

NUMS Mock 3
Biology
Bioenergetics

A) Chlorophyll

B) ATP

C) Carotenoids

D) Glucose

8 / 100

Category: Biology Ch 5 Class 12

Tails can be regenerated in:

NUMS 2015
Biology
Growth and Development
Elimination Tool:

A) The larvae of amphibians

B) Lizards

C) Both lizards and the larvae of amphibians

D) None of the given options

9 / 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

10 / 100

Category: Biology Ch 1 Class 12

In plants which of the following is a waste product produced both during photosynthesis and respiration

CO2

H2O

O2

Both A and B

11 / 100

Category: Biology

Q.14 Protein coat of a virus enclosing nucleic acid is called?

A. Vector

B. Capsid

C. Plasmid

D. Genome

12 / 100

Category: Biology Ch 8 Class 11

Constricting ring around nematode is formed by

Arthrobotrys

Pleurotus ostreatus

Mildews

All of these

13 / 100

Category: Biology Ch 2 Class 11

Which bond provides stability to complex carbohydrate molecules?

C-H

C-O

C-C

C-N

14 / 100

Category: Biology

Q42 The process that secretes insulin from the cell is called?

A. Endocytosis

B. Pinocytosis

C. Phagocytosis

D. Exocytosis

15 / 100

Category: Biology Ch 10 Class 12

Consider the following statements about biological communities.

I. Their members share a common gene pool

II. The community remains stable even though some physical aspect of the environment may undergo a change

III. It consists of all the populations living in a particular area.

IV. A community interacts with a non-living environment and both function together to form an ecosystem

Which two of the above statements are true?

NTS 2014
Biology
Evolution
Elimination Tool:

A) 1 and 2

B) 1 and 3

D) 2 and 3

E) 3 and 4

16 / 100

Category: Biology

Q.36 Parkinson’s disease is caused by cell death, which produces ____________.

A. Acetylcholine

B. Serotonin

C. Dopamine

D. Adrenaline

17 / 100

Category: Biology Ch 1 Class 12

Humans are:

NUMS 2016
Biology
Homeostasis
Elimination Tool:

A) Ammonotelic

B) Ureotelic

C) Uricotelic

D) None of these

18 / 100

Category: Biology

This theory says that “mitochondria and chloroplasts are, in effect, ancient bacteria which now live inside the larger cells”:

NUMS Mock 2
Biology
Evolution

A) Darwin’s theory of evolution

B) Lamarckism

C) Neo – darwinism

D) Endosymbiont theory

19 / 100

Category: Biology

Q.49 Another name for the sex cell is:

A. Hormone

B. Gamete

C. Zygote

D. Testicle

20 / 100

Category: Biology Ch 6 Class 11

In many bacteria, the cell wall is enclosed within a slime capsule made up of:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

A) Polysaccharides

B) Cellulose

C) Amino acids

D) Proteins

21 / 100

Category: Biology

Q.8 The neurons responsible for everything various external stimuli that come from the environment into corresponding internal stimuli is called:

A. Motor nerve

B. Sensory nerve

C. Both A and B

D. Mixed nerve

22 / 100

Category: Biology

Q.21 All of the following are true for platyhelminthes except:

A. Flatworms

B. Triploblastic

C. Coelomates

D. Bilateral symmetry

23 / 100

Category: Biology Ch 4 Class 11

In which model do proteins float in membrane-like iceberg in sea:

NTS 2010
Biology
Cell Structure and Function
Elimination Tool:

A) Lock and key model.

B) Induced fit model.

C) Fluid mosaic model.

D) Lotka volterra model.

24 / 100

Category: Biology Ch 5 Class 11

Binomial nomenclature was proposed for the first time by:

NTS 2010
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Charles Darwin (1859)

B) Rudolph virchow (1855)

C) Louis Pasteur (1862)

D) Carolus Linnaeus (1707)

25 / 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

26 / 100

Category: Biology

Q.63 Ozone depletion is commonly caused by:

A. CFC’s

B. Industrial smoke

C. Nitrogen gases

D. Green house gases

27 / 100

Category: Biology Ch 13 Class 12

Hydroelectricity is generated by using ______ of falling water.

Potential energy

Gravitational energy

Kinetic energy

. All of these

28 / 100

Category: Biology Ch 8 Class 12

In cats, the genes controlling coat-color are co-dominant (incompletely dominant) and are carried on the X chromosomes. When a black female was mated with a ginger male the resulting litter consisted of black male and tortoise-shell female kittens. What phenotypic ratio would be expected in the F2 generation?

NTS 2012
Biology
Variation and Genetics
Elimination Tool:

A) 1 black male : 1 ginger male : 2 tortoise – shell females

B) 1 black male : 1 ginger male : 1 tortoise – shell female : 1 black female

C) 2 black males : 1 tortoise – shell female : 1 ginger female

D) 1 black male : 1 tortoise – shell female : 1 ginger female : 1 black female

29 / 100

Category: Biology Ch 6 Class 12

DNA has a helical shape with the diameter of

3 nm

4 nm

2 nm

5 nm

30 / 100

Category: Biology Ch 10 Class 12

Who developed a theory of natural selection essentially identical to Darwin’s?

PMC Sample 2
Biology
Evolution
Elimination Tool:

A) Hardy-Weinberg

B) Malthus

C) Lamark

D) Alfred Wallace

31 / 100

Category: Biology Ch 4 Class 12

In which organism males are haploid

Aphids

Honey bee

Mosquito

Butterfly

32 / 100

Category: Biology Ch 5 Class 12

The process of aging:

NUMS 2015
Biology
Growth and Development
Elimination Tool:

A) Can be slowed down by adequate sleep

B) Can be slowed down by regular meals

C) Cannot be slowed down in any way

D) can be slowed by adequate sleep and regular meal

33 / 100

Category: Biology Ch 7 Class 12

During the formation of an ovum nondisjunction of the sex chromosomes occurred the ovum was then fertilized by a normal Y-bearing sperm cell which one of the following shows the sex chromosome complement of the resulting zygote?

NTS 2015 DUHS and JSMU
Biology
Cell Cycle
Elimination Tool:

A) XO

B) XXY

C) XXXY

D) XXYY

34 / 100

Category: Biology Ch 3 Class 11

Reversible inhibitors form WEAK linkages with which of the following?

PMC Sample 3
Biology
Enzymes
Elimination Tool:

A) enzyme

B) reactant

C) product

D) substrate

35 / 100

Category: Biology Ch 9 Class 12

Deficiency of enzyme ______ causes combined immunodeficiency syndrome.

UHS 2018
Biology
Biotechnology
Elimination Tool:

A) Adenosine transcriptase

B) Adenosine transaminase

C) Adenosine polymerase

D) Adenosine deaminase

36 / 100

Category: Biology Ch 2 Class 12

The number of muscles in a human body is about:

NTS 2012
Biology
Support and Movement
Elimination Tool:

A) 200

B) 300

C) 400

E) 600

37 / 100

Category: Biology Ch 12 Class 12

Temperature of temperate deciduous forests is

4-30 degree

45-50 degree

20-25 degree C

5-10 degree

38 / 100

Category: Biology Ch 5 Class 12

Function of intercalary meristems is

. Increase in length

Increase in diameter

Production of leaves and flowers

None of these

39 / 100

Category: Biology Ch 7 Class 11

Bacteria that can only survive in the presence of oxygen?

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

A) Facultative anaerobes

B) Obligate aerobes

C) Obligate anaerobes

D) Facultative aerobes

40 / 100

Category: Biology Ch 7 Class 11

The only group of algae having no flagellated motile cells at any stage is :

Chrysophyta

Phaeophyta

Pyrrophyta

Rhodophyta

41 / 100

Category: Biology Ch 10 Class 11

The fate of each blastomere is foretold. The cleavage will be as

Spiral and indeterminate

Radial and indeterminate

Spiral and determinate

42 / 100

Category: Biology Ch 1 Class 12

The characteristic which enable animals to tolerate dehydration is called

Osmoconformation

Osmoregulaton

Anhydrobiosis

Anhydrosis

43 / 100

Category: Biology Ch 13 Class 12

Balance in the nutrient cycle can be upset when

Too much food is consumed

Not enough food is produced

Decayed nutrients are not returned to the ground

All of these

44 / 100

Category: Biology Ch 11 Class 11

During cellular respiration NADH2 produces:

NUMS 2014
Biology
Bioenergetics
Elimination Tool:

A) 2 ATP

B) 3 ATP

C) 4 ATP

D) 5 ATP

45 / 100

Category: Biology Ch 13 Class 12

Overgrazing results in:

NUMS 2019 Cancelled
Biology
Man and His Environment
Elimination Tool:

A) Totally barren lands

B) Good pastured lands

C) Salinity

D) Rocky areas

46 / 100

Category: Biology Ch 11 Class 11

Exposure to ______ light is effective in photosynthesis as it enables guard cells to take up K+ and opening of stomata.

NUMS 2019 Reconduct
Biology
Bioenergetics
Elimination Tool:

A) Red

B) Blue

C) Green

D) Orange

47 / 100

Category: Biology Ch 6 Class 11

Some bacteria ranging occasionally a size of 500 ?m in length are

Escherichia coli

Spirochetes

Mycoplasma

Epulopiscuim

48 / 100

Category: Biology Ch 3 Class 12

Neurons are cells adapted for the rapid transmission of electrical impulses. To do this, they have long thin processes called:

PMC 2020
Biology
Coordination and Control
Elimination Tool:

A) Axons

B) Dendrites

D) Schwann cell

C) Myelin sheath

49 / 100

Category: Biology Ch 14 Class 11

Choose the correct pathway for the flow of blood:

NUMS 2020
Biology
Transport
Elimination Tool:

A) Arterioles → metarterioles → capillaries → thoroughfare channels

B) Arterioles → thoroughfare channel → metarterioles → capillaries

C) Thoroughfare channel → arterioles → capillaries → metarterioles

D) Metarterioles → arterioles → thoroughfare channels → capillaries

50 / 100

Category: Biology Ch 5 Class 11

The genome of the virus includes the:

PMC Sample 1
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Deoxyribonucleic acid

B) Ribonucleic acid

C) Amino acids

D) Deoxyribonucleic acid and ribonucleic acids

51 / 100

Category: Biology Ch 1 Class 12

Marine fish can keep their internal environment hypertonic with respect to the surrounding salty water by retaining.

Excessive urea which will increase their internal solute concentration and prevent body shrinkage in hypertonic environment

Trimethyl alanine

Ammonia

Trimethylamine oxide

52 / 100

Category: Biology Ch 7 Class 12

Reverse of prophase is

Interphase

Metaphase

Anaphase

Telophase

53 / 100

Category: Biology Ch 10 Class 11

Which of the following is a freshwater sponge?

NUMS 2016
Biology
Kingdom Animalia
Elimination Tool:

A) Sycon

B) Leucosolenia

C) Euplectella

D) Spongilla

54 / 100

Category: Biology Ch 5 Class 11

Second major form of hepatitis is:

NUMS 2015
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Hepatitis A

B) Hepatitis B

C) Hepatitis C

D) Hepatitis D

55 / 100

Category: Biology Ch 4 Class 12

Menstrual cycle can be divided into:

NUMS 2015
Biology
Reproduction
Elimination Tool:

A) Single phase

B) Two phases

C) Three phases

D) Four phases

56 / 100

Category: Biology

Q.26 The function/s of HCl during digestion is/are:

A. Adjust the pH

B. Softens the food

C. Activate pepsinogen to pepsin

D. All A, B, C

57 / 100

Category: Biology Ch 9 Class 11

Which of the following is true in angiosperm life cycle?

NTS 2014
Biology
Kingdom Plantae
Elimination Tool:

A) Gametophyte are photosynthetic and partially independent than sporophyte

B) Sporophytes are totally dependent on gametophytes

C) Gametophytes are totally dependent on sporophytes

D) Both gametophytes and sporophytes are totally dependent on each other

58 / 100

Category: Biology Ch 12 Class 11

Carbohydrates, fats & proteins are essential for:

Metabolic processes of an organism

Providing energy

Formation of sturctures

All of these

59 / 100

Category: Biology

Q.66 Which one of the following is a non-protein group covalently bonded to a few respiratory enzymes among others?

A. Nicotine adenine dinucleotide

B. Flavin adenine dinucleotide

C. Nicotinamide adenine dinucleotide phosphate

D. All of the above

60 / 100

Category: Biology Ch 13 Class 11

Four plants are present in different environmental conditions. Plant A is present in a warm climate with continuous rainfall, plant B is present in a cool forest, plant C is present in a warm climate with little breeze, while plant D is present in a warm climate with high wind speed. Which one of the above plants will have the highest rate of transpiration?

UHS 2019
Biology
Gaseous Exchange
Elimination Tool:

A) Plant B

B) Plant D

C) Plant A

D) Plant C

61 / 100

Category: Biology Ch 9 Class 11

Antheridiophore and archegoniophore are found in

Marchantia

Funaria

Both of these

None of these

62 / 100

Category: Biology Ch 7 Class 12

Meiosis occur in

Diploid cells only

Haploid cells only

Both diploid and haploid cells

Monoploid cells

63 / 100

Category: Biology Ch 2 Class 11

The branch of biology which deals with the study of chemical compounds and the chemical processes in the fliving organisms is called:

Chemistry

Biochemistry

Molocular biology

Both a and b

64 / 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

65 / 100

Category: Biology Ch 9 Class 12

The cells are held together by a Ca-pectate layer are called as:

NUMS 2016
Biology
Biotechnology
Elimination Tool:

A) Primary cell wall

B) Secondary cell wall

C) Middle lamella

D) Tertiary cell wall

66 / 100

Category: Biology

Phenylmethyl ketone can be converted into ethyl benzene in one step by using:

NUMS Mock 4
Chemistry
Aldehydes and Ketones

A) LiAlH4

B) Zn(Hg)-HCl

C) NaBH4

D) CH3Mgl

67 / 100

Category: Biology Ch 2 Class 12

Which of the following bones are present in the palm of the hand:

NTS 2010
Biology
Support and Movement
Elimination Tool:

A) Carpals

B) Metacarpals

C) Phalanges

D) Tarsal

68 / 100

Category: Biology Ch 1 Class 12

Which organ is called the body thermostat?

NUMS 2020
Biology
Homeostasis
Elimination Tool:

A) Pituitary gland

B) Kidneys

C) Hypothalamus

D) Adrenal gland

69 / 100

Category: Biology Ch 8 Class 12

Which of the following does not belong to the same linkage group?

NUMS 2015
Biology
Variation and Genetics
Elimination Tool:

A) Sickle cell anemia

B) Albinism

C) Leukemia

D) Gout

70 / 100

Category: Biology Ch 12 Class 11

Useful bacteria at the large intestine of humans produce:

NUMS 2015
Biology
Nutrition
Elimination Tool:

A) Vitamin K

B) Vitamin E

C) Vitamin D

D) Vitamin C

71 / 100

Category: Biology Ch 1 Class 12

Sphincter muscle in urinary system present near the junction of:

NUMS 2019 Reconduct
Biology
Homeostasis
Elimination Tool:

A) Pelvis and ureter

B) Ureter and urinary bladder

C) Urinary bladder and urethra

D) Urethra and bladder

72 / 100

Category: Biology Ch 9 Class 11

Which of the following statement about plants is incorrect?

PMC Sample 2
Biology
Kingdom Plantae
Elimination Tool:

A) All are eukaryotes

B) They are multicellular

C) Non-motile organisms

D) Are heterotrophs

73 / 100

Category: Biology Ch 6 Class 12

The chromosomes with equal arms are called:

NTS 2018
Biology
Chromosomes and DNA
Elimination Tool:

A) Metacentric

B) Submetacentric

C) Acrocentric

D) Telocentric

74 / 100

Category: Biology Ch 4 Class 12

Which one is not a day neutral plant?

Cucumber

Maize

Cotton

Tobacco

75 / 100

Category: Biology Ch 9 Class 11

What is the name of the structure of the leaf that attaches the leaf to the stem?

PMC Sample 2
Biology
Kingdom Plantae
Elimination Tool:

A) Phloem

B) Mesophyll

C) Xylem

D) Petiole

76 / 100

Category: Biology Ch 1 Class 12

The disease in which patients passed urine that rapidly turned black on exposure to air is called:

NTS 2011
Biology
Homeostasis
Elimination Tool:

A) Phenylketonuria

B) Alkaptonuria

C) Sickle cell anemia

D) Hemophilia

77 / 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

78 / 100

Category: Biology Ch 10 Class 12

What was the source of hydrogen for first photosynthetic organisms?

Water

Hydrogen present in soil

Hydrogen sulphate

Hydrogen sulphide

79 / 100

Category: Biology Ch 8 Class 12

If the seed is heterozygous yellow (Yy). In a test cross, what will be the probability of appearance of seed colors?

NUMS 2019 Reconduct
Biology
Variation and Genetics
Elimination Tool:

A) 0 % yellow, 100 % green

B) 25 % yellow, 75 % green

C) 50 % yellow, 50 % green

D) 75 % yellow, 25 % green

80 / 100

Category: Biology Ch 10 Class 12

Key point to Lamarck’s view about organic evolution is that every offspring

NUMS 2014
Biology
Evolution
Elimination Tool:

A) is similar to its parents

B) inherits characters acquired by the parental generation

C) shows struggle for existence

D) repeats phylogeny in its ontogeny

81 / 100

Category: Biology

While working in a laboratory, before studying a sample under the microscope, it was immersed in a dye solution to obtain ______.

NUMS Mock 1
Biology
Biology and its Major Fields of Specialization

A) Magnification

B) Image

C) Match

D) Contrast

82 / 100

Category: Biology

Q.48 Octopus belongs to phylum mollusca because:

A. It has suckers and tentacles.

B. It has a soft body covered by a shell.

C. It has a soft, unsegmented body with a thin, flexible internal shell

D. It has a soft, segmented body with a head and a foot.

83 / 100

Category: Biology Ch 11 Class 11

NAD is an example of ______:

NUMS 2020
Biology
Bioenergetics
Elimination Tool:

A) Mononucleotide

B) Dinucleotide

C) Tri nucleotide

D) Tetra nucleotide

84 / 100

Category: Biology Ch 9 Class 12

Which of the following is not necessary for PCR to occur?

PMC 2020
Biology
Biotechnology
Elimination Tool:

A) dATP

B) Primers

C) DNA fragments

D) Ribonucleotides

85 / 100

Category: Biology Ch 3 Class 12

Which of the following is not secreted by thyroid gland?

NTS 2015 SMBBMC
Biology
Coordination and Control
Elimination Tool:

A) Thyroxin

B) Triiodothyronine

C) Calcitonin

D) Glucagon

86 / 100

Category: Biology Ch 8 Class 11

Type of lichen which tightly attaches to rocks is

Parmelia

Fruticose

Foliose

Crustose

87 / 100

Category: Biology

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

A. T- lymphocytes

B. Plasma cells

C. B- lymphocytes

D. Fibroblasts

88 / 100

Category: Biology Ch 3 Class 11

Most enzymes have an optimum temperature of around:

PMC 2020
Biology
Enzymes
Elimination Tool:

A) 30 C

B) 40 C

C) 50 C

D) 20 C

89 / 100

Category: Biology Ch 6 Class 11

Which of the following statement is incorrect regarding germ theory of diseases postulated by Robert Koch?

A specific organism can always be found in association with a given disease

The organism can be isolated and grown in pure culture in the laboratories

The pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from pure culture can do so.

It is possible to recover the organism in pure culture from the experimentally infected animals.

90 / 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

91 / 100

Category: Biology Ch 12 Class 12

Annual rainfall in grass land i

1500-2500 mm

750-1500 mm

250-750 mm

250-500 mm

92 / 100

Category: Biology

Q.7 The thalamus and the hypothalamus are located in which region of the brain?

A. brain stem

B. cerebrum

C. cerebellum

D. Diencephalon

93 / 100

Category: Biology Ch 7 Class 12

During anaphase, each chromosome has:

PMC 2021 Tested
Biology
Cell Cycle
Elimination Tool:

A) One chromatid

B) Two chromatids

C) Several chromatids

D) No chromatids

94 / 100

Category: Biology Ch 3 Class 12

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

NTS 2010
Biology
Coordination and Control
Elimination Tool:

A) Pituitary gland

B) Pancreas

C) Thyroid gland

D) Thymus gland

95 / 100

Category: Biology Ch 8 Class 11

Oyster mushroom is an example of predator fungi which attack on

Pin warms

Tape worms

Round worms

Platehelminthes

96 / 100

Category: Biology Ch 5 Class 11

Eukaryotic, multicellular, and consumers belong to ______ kingdom.

NUMS 2017
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Monera

B) Protista

C) Fungi

D) Animalia

97 / 100

Category: Biology Ch 3 Class 11

Cyanide for enzymes act as:

NUMS 2018
Biology
Enzymes
Elimination Tool:

A) Substrate

C) Cofactor

B) Prosthetic group

D) Inhibitor

98 / 100

Category: Biology Ch 3 Class 11

The enzyme found in saliva responsible for the digestion of carbohydrates is:

NTS 2018
Biology
Enzymes
Elimination Tool:

A) Lysozyme

B) Amylase

C) Pepsin

D) Trypsinogen

99 / 100

Category: Biology Ch 10 Class 11

Select an anamniote from the following:

PMC 2020
Biology
Kingdom Animalia
Elimination Tool:

A) Snake

B) Parrot

C) Frog

D) Crocodile

100 / 100

Category: Biology

Most enzymes have an optimum temperature of around:

NUMS Mock 4
Biology
Enzymes

A) 30 C

B) 40 C

C) 50 C

D) 20 C

Your score is

The average score is 61%

0%

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