Home Knowledge 50 Important Botany Questions With Answers Series (Part 4)

50 Important Botany Questions With Answers Series (Part 4)

by Naz khaliq
Botany questions with answers
Botany questions with answers

If you memorize these important biology and Botany questions with answers, you can cover both subjects. Moreover, these Multiple Choice questions will help you to learn them better. The first three parts also cover the important Botany questions with answers and these are also helpful for science students. The links of the first three parts of important botany questions mcq are mentioned below.

This part of important botany questions MCQ also include the Classification and diversity of Plant Kingdom:

1: ATP molecules combine with carrier molecules and flow:

a) Along the concentration gradient

b) Against the concentration gradient

c) Both (a) and (b)

d) None of the above

Answer: Against the concentration gradient

2) Which yields ATP during the contraction of muscles?

a) Myoglobin

b) Creatine phosphate

c) Haemoglobin

d) Myosin

Answer: Creatine Phosphate

3) Energy is transformed by which cell organelles?

a) Chloroplast and leucoplast

b) ER and mitochondria

c) Golgi body and mitochondria

d) Chrloroplast and mitochondria

Answer: Chloroplast and mitochondria

4) Which of the following is a component of the electron transport chain in mitochondria?

a) Phytochrome

b) Cytochrome oxidase

c) Plastocyanin

d) Carotenoids

Answer: Cytochrome oxidase

5) In ATP, the high energy bond is the one which links:

a) Phosphate to phosphate

b) Ribose with phosphate

c) Adenine with ribose

d) Adenine with phosphate

Answer: Phosphate to phosphate

6) Enzymes of the electron transport system are present in:

a) Inner mitochondrial membrane

b) Matrix

c) Intermembranous space

d) Endoplasmic reticulum

Answer: Inner mitochondrial membrane

7: Which of the following accepts terminal electrons?

a) Molecular O2

b) Molecular H2

c) Molecular CO2


Answer: Molecular O2

8: When a spontaneous process occurs then free energy of the system:

a) Decreases

b) Increases

c) Remains the same

d) Either can increase or decrease

Answer: Decreases

9: Which of the following acts as a secondary messenger in metabolism?

a) ATP



d) NAD

Answer: CAMP

10: Each molecule of NADP releases how many ATP molecules?

a) 3

b) 2

c) 4

d) 5

Answer: 3

11: The mechanism of ATP production in aerobic respiration was given by:

a) Krebs

b) Calvin

c) Hatch and Slack

d) Pasteur

Answer: Pasteur

12: Energy flow and energy transformations in living system strictly conform to the:

a) Law of limiting factors

b) Leibig’s law of minimum

c) Laws of thermodynamics

d) Shelford’s law of tolerance

Answer: Laws of thermodynamics

13: Which of the following does not function as an electron carrier?

a) Coenzyme Q

b) Cytochrome-c

c) Cytochrome-a

d) Cytochrome-a3

Answer: Cytochrome-a

14: ATP was discovered by:

a) Blackman

b) Bowman

c) Lipmann

d) Karl Lohmann

Answer: Karl Lohmann

15: In ATP high energy bond is present between:

a) Nucleoside and phosphate group

b) Sugar and phosphate group

c) Base and phosphate group

d) None of the above

Answer: None of the above

16: Richest energy compound is:

a) Creatine phosphate

b) ATP

c) Carbohydrate

d) Fat

Answer: Fat

17: The radiation energy of light is converted to chemical energy and stored as:

a) AMP

b) ADP

c) ATP

d) APP

Answer: ATP

18: Adenosine diphosphate contains:

a) One high energy bond

b) Two high energy bond

c) Three high energy bond

d) Four high energy bond

Answer: One high energy bond

19: The amount of usable energy that is available for doing work when the temperature and pressure are uniform throughout the system is called:

a) Enthalpy

b) Activation energy

c) Spontaneous energy

d) Free energy

Answer: Free energy

20: Which one is always transferred in a redox reaction?

a) Neutron

b) Electron

c) Proton

d) Electron and proton

Answer: Electron

21: When a molecule is reduced it always:

a) Loses electron

b) Loses both protons and electrons

d) Gains electrons

Answer: Gains electrons

22: Basic unit of classification is:

a) Family

b) Genus

c) Species

d) None of these

Answer: Species

23: A plant that produces seeds but lacks flowers, will be placed in the group:

a) Fungi

b) Bryophyta

c) Pteridophyta

d) Gymnosperms

Answer: Gymnosperms

24: The plants which bear flowers and seeds are:

a) Cryptogams

b) Phanerogams

c) Pteridophytes

d) Gymnosperms

Answer: Phanerogams

25: Which plant group is known as vascular cryptogams?

a) Thallophyta

b) Bryophyta

c) Pteridophyta

d) Gymnosperms

Answer: Pteridophyta

26: The term Atracheata is given to:

a) Algae

b) Fungi

c) Bryophyta

d) Pteridophyta

Answer: Bryophyta

27: Phanerogams include:

a) Thallophyta

b) Bryophyta

c) Pteridophyta

d) Gymnosperms and Angiosperms

Answer: Gymnoserpms and Angiosperms

28: Sex organs are multicellular and jacketed in:

a) Algae

b) Fungi

c) Mosses

d) All of these

Answer: Mosses

29: A plant having those plant bodies, developing embryo and reproducing by means of spored will be placed in:

a) Algae

b) Fungi

c) Ferns

d) Liverworts

Answer: Liverworts

30: Phanerogams without ovary are:

a) Dicotyledons

b) Monocotyledons

c) Pteridophytes

d) Gymnosperms

Answer: Gymnosperms

31: The plants having vascular tissue are:

a) Bryophyta

b) Pteridophyta

c) Gymnosperms

d) Both (b) and C0

Answer: Both b and c

32: The main plant body is always gametophytic in:

a) Bryophyta

b) Pteridophyta

c) Gymnosperms

d) Angiosperms

Answer: Bryophyta

33: Which of the following plants is a monocot?

a) Gram

b) Pea

c) Rice

d) Mango

Answer: Rice

34: The classification of Oswald Tippo is not based on:

a) Presence or absence of vascular tissue

b) Embryo presence or absence in the life cycle

c) Cell structure

d) None of the above

Answer: Cell Structure

35: Which plant group is not included in Embryophyta of Oswald Tippo?

a) Thallophyta

b) Bryophyta

c) Pteridophyta

d) Gymnosperms

Answer: Thallophyta

36: Whittaker’s classification is not based on:

a) Complexity of body structure

b) Complexity of cell structure

c) Presence or absence of vascular tissue

d) Trophic structure

Answer: Presence or absence of vascular tissue

37: Monera includes:

a) Prokaryotic organisms

b) Unicellular

c) Multicellular eukaryotes

(d) All of these

Answer: Prokaryotic organisms

38: The ancient form from which archaebacteria and eubacteria arose

(a) Viruses

(b) Cyanobact

c) Progenote

(d) None of these

Answer: Progenote

39: Which of the following are included in the kingdom Protista?

(a) Prokaryotes

(b) Unicellular eukaryotes

(c) Multicellular eukaryotes

(d) None of these

Answer: Unicellular Eukaryotes

40: Mycelium is the plant body of the kingdom:

a) Monera

(b) Protista

c) Fungi

(d) Plantae

Answer: Fungi

41: Reserve food in the form of glycogen and cell wall of chitin are characteristic of the kingdom:

(a) Protista

b) Fungi

(c) Monera

d) All of these

Answer: Fungi

42: A plant flowering and fruiting once in its life is called:

(a) Monoecious

(b) Monocarpic

(c) Annual

(d) Monocot

Answer: Monocarpic

43: A plant with the smallest flower in the plant kingdom is:

a) Lenna

b) Rafflesia

c) Wolffia

d) Zoopsis

Answer: Wolffia

44: The plant with the longest leaves is:

(a) Victoria Regia

(b) Lodoicea

c) Raphia

(d) Orchids

Answer: Raphia

45: Flowering plants are included in:

(a)) Phanerogams

(b) Cryptogams

(c) Bryophytes

(d) Pteridophytes

Answer: Phanerogams

46: Thallophyta includes:

(a) Algae and fungi

(b) Fungi and bacteria

(c) Algae, fungi and lichens

(d) Algae, fungi, bacteria and lichens

Answer: Algae and Fungi

47: Which of the following is having embryo but lacks vascular tissue?

(a) Bryophyta

(b) Pteridophyta

(c) Gymnosperms

(d) Angiosperms

Answer: Bryophyta

48: Most primitive vascular plants are:

(a) Cycads

((b) Ferns

c) Red algae

(d) Brown algae

Answer: Ferns

49: A plant which reproduces by spores, has vascular t but lacks flowers should belong to:

(a) Bryophyta

((b) Pteridophyta

c) Algae

(d) Gymnosperms

Answer: Pteridophyta

50: Which of the following plants show independent alteration of generation?

(a) Angiosperms

b) Gymnosperms

(c) Pteridophytes

(d) Bryophytes

Answer: Pteridophytes

These are some of the important botany questions with answers and in fact, these are important biology questions which will help you to memorize both subjects. Even if you want to cover science subject, this article will help you.

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