9th Biology Chapter 07 Bioenergetics Solved MCQs

Learn online Biology MCQs Chapter Bioenergetics objective Type Question Answers. All of these MCQs question answers are helpful for upcoming exams and tests preparations easily.

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Q.1: Respiration is of .......... types?

1. One
2. Two
3. Three
4. Four

B

Q.2: Respiration is a............ process?

1. Constructive
2. DestructIon
3. Both
4. None

B

Q.3: Electrons are passed to ETC to produce?

1. AMP
2. ATP
3. ADP
4. NAD+

B

Q.4: The breaking of one phosphate bond releases --------- kcal/mol of ATP?

1. 7.9
2. 7.5
3. 7.1
4. 7.3

D

Q.5: Redox reactions involve exchange of ----------?

1. Electrons
2. Protons
3. Neutrons
4. Atoms

A

Q.6: -------------- is an inorganic compound of carbon which have poor energy value?

1. Glucose
2. ATP
3. CO2
4. NADPH

C

Q.7: A ribose sugar has carbon atoms?

1. 4
2. 5
3. 6
4. 7

B

Q.8: The potential energy is stored in chemical bonds and is released as ------------- energy when these bonds break?

1. Heat
2. Light
3. Kinetic
4. Solar

C

Q.9: Most of the energy during ATP formation escapes in the form of?

1. Waves
2. Bonds
3. Heat
4. Chemical

C

Q.10: .............. is called energy currency of cell?

1. ADP
2. ATP
3. AMP
4. All

B

Q.11: The purpose of respiration is to ............. energy?

1. Absorb
2. Release
3. Both
4. None

B

Q.12: In which of the following steps of respiration, CO2 is produced?

1. Glycolysis
2. Krebs cycle
3. Electron trransport
4. All of these

B

Q.13: By-Product of Photosynthesis is?

1. Glucose
2. Carbon dioxide
3. Oxygen
4. None of these

C

Q.14: The water from the soil enters into the root hairs by the process of?

1. Photosynthesis
2. Osmosis
3. Diffusion
4. Respiration

B

Q.15: The concentration of carbon dioxide in the environment is?

1. 0.3%
2. 0.03%
3. 3%
4. 3.01%

B

Q.16: .......... is abbreviated from Adenosine Tri Phosphate?

1. ATP
2. ADP
3. AMP
4. All

A

Q.17: The reactions which do not require light during photosynthesis are called ---------- reactions?

1. Chemical
2. Redox
3. Dark
4. Light

C

Q.18: ............ does not require sunlight?

1. Photosynthesis
2. Respiration
3. Both
4. None

B

Q.19: When a plant was kept in darkness for many days, its leaves turnes yellow. Why?

1. Leaves could not yet oxygen and so there was no photosynthesis
2. Leaves could not get light and so there was no respiration
3. Leaves could not get oxygen and so there was no respiration
4. Leaves could not get light and so there was no photosynthesis

D

Q.20: Green plants capture ........ energy?

1. Light energy
2. Solar energy
3. Tidal energy
4. Chemical energy

B

Q.21: intensity of light is ...... at midday?

1. Maximum
2. Minimum
3. Both
4. None

A

Q.22: Pyruvic acid is produced in ------ respiration?

1. Aeorbic
2. Anaerobic
3. Both aerobic and anaerobic
4. None of these

C

Q.23: How many molecules of CO2 are produced when krebs cycle operates once?

1. 01
2. 02
3. 03
4. 06

B

Q.24: When we work hard we suffer form muscle fatigue muscle cells?

1. Carry out aerobic respiration and so accumulate more CO2
2. Carry out anaerobic respiration and so accumulate lactic acid
3. Carry out aerobic respiration at faster rate and so accumulate lactic acid
4. Carry out aerobic respiration at faster rate and so are tired

B

Q.25: When chemical bound broken energy is ............ ?

1. Released
2. Formed
3. Both
4. None of them

A

Q.26: Aerobic respiration needs free ........... ?

1. Carbon
2. Nitrogen
3. Oxygen
4. None

C

Q.27: There are ...... types of photosystem?

1. One
2. Two
3. Three
4. Four

B

Q.28: Which of following set of organisms can synthesize their own food?

1. Plants, fungi, protozoans
2. Fungi, algae, bacteria
3. Plants, photosynthetic bacteria, algae
4. Plants, non photosynthetic bacteria algae

C

Q.29: ATP molecule was discovered by?

1. Fritz Lipmann
2. Calvin
3. Karl Lohmann
4. Hans krebs

C

Q.30: The visible portion of sunlight consist of .......... colours?

1. Four
2. Five
3. Six
4. Seven

D

Q.31: At ............°C the process of photosynthesis stops?

1. 20°C
2. 30°C
3. 25°C
4. 45°cC

D

Q.32: Electron transport chain takes place in?

1. Mitochondria
2. Cytoplasm
3. Nucleus
4. Ribosomes

A

Q.33: ...... is one of raw material for photosynthesis ?

1. Oxygen
2. Water
3. Carbon Dioxide
4. Nitrogen

C

Q.34: There are .. types of photosynthesis pigments?

1. One
2. Two
3. Three
4. Four

B

Q.35: Anaerobic respiration occurs in the absence of ........... ?

1. Oxygen
2. Carbon
3. Nitrogen
4. All

A

Q.36: A cell hydrolyses ATP to ADP & inorganic phosphate & almost ............ Kcal energy is released?

1. 7.3 Kcal
2. 7.4 Kcal
3. 7.2 Kcal
4. 7.5 Kcal

A

Q.37: When a plant was kept in darkness for many days, many days, its leaves turned yellow. Why?

1. Leaves could not get oxygen and so there was no photosynthesis
2. Leaves could not get light and so there was no respiration
3. Leaves could not get oxygen and so there was no respiration
4. Leaves could not get light and so there was no photosynthesis

D

Q.38: The air enters the leaf through --------?

1. Pits
2. Stomata
3. Mesophyll
4. Xylem vessels

B

Q.39: There are --------- P-bonds in an ATP molecule?

1. Two
2. Nine
3. Six
4. Four

A

Q.40: In living organisms, redox reactions involving the loss and gain of ------------- atom?

1. Oxygen
2. Carbon
3. Nitrogen
4. Hydrogen

D

Q.41: Light reaction takes place in the .... of chloroplast?

1. Granum
2. Strome
3. Intergrana
4. All

A

Q.42: Photosynthesis is a ............ process?

1. Constructive
2. Destruction
3. Both
4. None

A

Q.43: Fungi and ----------- bacteria get the prepared food?

1. Motile
2. Non-motile
3. Phtosynthetic
4. Non-photosynthetic

D

Q.44: Any environment factor, the absence or deficiency of which can decrease the rate of a metabolic reaction known as?

1. Unlimited factor
2. Limiting factor
3. Both
4. None

B

Q.45: Exchange of water vapours and gases occurs in leaf through?

1. Stomata
2. Epidermics
3. Xylem
4. Phloem

A

Q.46: Chlorophyll is present in green plastids of plants called ............. ?

1. Strome
2. Chloroplast
3. Grana
4. Thylakoid

B

Q.47: Dalk reaction takes place in the ......... of chloroplasts?

1. Grana
2. Strome
3. Intergrana
4. All

B

Q.48: The water and carbon dioxide are the ............. in photosynthesis?

1. Reactants
2. Products
3. Both
4. None

A

Q.49: In dark reaction first of all CO2 combines with?

1. 5-carbon compound
2. 6-carbon compound
3. 3-carbon compound
4. Already present glucose

A

Q.50: .............. Organisms cannot carry out photosynthesis?

1. Autotrophic
2. Heterotrophic
3. Both
4. None

B

Q.51: Photosynthesis is a /an ----- process?

1. Metabolic
2. Catabolic
3. Anabolic
4. Chemical

C

Q.52: How many percent of the light falling on the leaf surface is absorbed?

1. 5%
2. 6%
3. 7%
4. 1%

D

Q.53: The major energy currency of all cells is?

1. ADP
2. ATP
3. AMP
4. P-bonds

B

Q.54: In which component of the leaf cells, chlorophill is present?

1. Stroma
2. Thylakoids
3. Plasma membrane
4. Cytoplasm

B

Q.55: In which of the following steps of respiration CO2 is produced?

1. Glycolysis
2. Krebs cycle
3. Electron transport chain
4. All of these

B

Q.56: Form which bonds of ATP molecule, energy is taken?

1. P-P bonds
2. C-H bonds
3. C-N bonds
4. C-O bonds

A

Q.57: The double membrane enveloped of chloroplast surrounds a large ventral space called ........ ?

1. Strome
2. Grana
3. Intergrane
4. Thylakoid

A

Q.58: Which of these can enter into Krebs cycle?

1. Glucose
2. Pyruvic acid
3. Citric acid
4. Acetyl Co.A

D

Q.59: ------------ is a co-enzyme?

1. NAD+
2. NADH
3. AMP
4. None

A

Q.60: Chlorophyll is complex ............ compound?

1. Organic
2. Inorganic
3. Both
4. None

A

Q.61: All ........... cells are always performing functions?

1. Living
2. Non-living
3. Both
4. None

A

Q.62: Chlorophyll pigment absorbs maximum light in wavelengths of?

1. Green and blue
2. Green and red
3. Green only
4. Red and blue

D

Q.63: In which compound of the leaf cells, chlorophyll is present?

1. Stroma
2. Thylakoids
3. Plasma membrane
4. Cytoplasm

B

Q.64: Which of the following chemical is used to identify the starch in leaves?

1. KOH
2. KHCO3
3. Ethanol
4. Iodine solution

D

Q.65: Oxygen takes part in aerobic respiration in?

1. Glycolysis
2. Link step between Glycolysis and krebs cycle
3. Electron transport chain
4. Krebs cycle

D

Q.66: The site for Calvin cycle is?

1. Stroma
2. Grana
3. Plasmodesmata
4. Cytoplast

A

Q.67: One molecule of glucose when broken down into CO2 H2O in aerobic respiration generates .......... ATP molecules?

1. 36 ATP
2. 37 ATP
3. 38 ATP
4. None of them

C

Q.68: Glycolysis takes place in .............. ?

1. Cytosol
2. Mitochondria
3. Lysosome
4. None

A

Q.69: krebs cycle occurs in .............. ?

1. Cytoplasm
2. Mitochondria
3. Lysosome
4. Nucleus

B

Q.70: ............. are called accessory pigments?

1. Chlorophyll II
2. Xanthophyll
3. Carotenoids
4. All

C

Q.71: No life would be possible if the process of ............ stops?

1. Respiration
2. Photosynthesis
3. Both
4. None

B

Q.72: ATP has .......... phosphate group?

1. Two
2. Three
3. Four
4. Five

B

Q.73: ......... is the most abundant ?

1. Chlorophyll a
2. Chlorophyll b
3. Chlorophyll c
4. Chlorophyll d

A

Q.74: Bactelio-chlorophyll is found in ........ ?

1. Virus
2. Bacteria
3. Both
4. None

B

Q.75: The 6-carbon compounds during the dark reactions of photosynthesis split into ------------ carbon compound?

1. 5
2. 3
3. 7
4. 4

B

Q.76: Ribose is a ------- carbon sugar?

1. Two
2. Three
3. Five
4. Ten

C

Q.77: -------------- reactions are the direct source of energy?

1. Oxidation
2. Redox
3. Reduction
4. None

A

Q.78: The light reactions of photosynthesis take place on the ------------- of chloroplasts?

1. Stroma
2. Thylakoid membrane
3. Lumen
4. Sacs

D

Q.79: When we work hard we suffer from muscle fatigue because muscle cells?

1. Carry out aerobic respiration at faster rate and so are tired
2. Carry out anaerobic respiration and so-accumulate more CO2
3. Carry out anaerobic respiration and so accumulate lactic acid
4. Carry out aerobic respiration at faster rate and so burst

C

Q.80: Carbon Dioxide is almost ......... percent in air?

1. 0,01
2. 0.3
3. 0,03
4. 0.1

B

Q.81: In which of the following metabolic processes, oxidation as well as reduction of molecules occur?

1. Photosynthesis
2. Respiration
3. Both
4. None of these

B

Q.82: Anaerobic respiration is of ...... types?

1. Two
2. Three
3. Four
4. Five

A

Q.83: Fermenting powers of bacteria are used in making?

1. Soya sauce
2. Bread
3. Cheese
4. Cheese and yogurt

D

Q.84: .......... is an essential requirement of photosynthesis?

1. CO2
2. H2O
3. O2
4. All

B

Q.85: The word photosynthesis is a combination of two ........... words?

1. Greek
2. Latin
3. German
4. Freech

A

Q.86: The clusters of photosynthetic pigments are called?

1. Thylakoids
2. Photosystems
3. Carotenoids
4. Chlorophyll a & b

B

Q.87: The raw materials in photosynthesis are?

1. Water, Oxygen
2. CO2, O2
3. Water , CO2
4. Glucose , Water

C

Q.88: The green portion is minaly reflected therefore chlorophull appears ............ ?

1. Green
2. Blue
3. White
4. Black

A

Q.89: Oxygen takes part in aerobic respiration is?

1. Glycolysis
2. Link step between Glycolysis and Krebs cycle
3. Krebs cycle
4. Electron transport chain

D