Chapter 2: Bioenergetics - Biology Mcqs for High School - Grade 9 - Set 3

1)   In lactic acid fermentation, the pyruvic acid molecules are converted into

a. nitric acid
b. citric acid
c. acetic acid
d. lactic acid
Answer  Explanation 

ANSWER: lactic acid

Explanation:
No explanation is available for this question!


2)   The site for the glycolysis stage in aerobic respiration is

a. cytoplasm
b. mitochondria
c. Golgi apparatus
d. centrioles
Answer  Explanation 

ANSWER: cytoplasm

Explanation:
No explanation is available for this question!


3)   In anaerobic respiration, the number of ATP produced as the net profit is

a. 10
b. 8
c. 6
d. 2
Answer  Explanation 

ANSWER: 2

Explanation:
No explanation is available for this question!


4)   In the electron transport chain, the three ATP molecules produced

a. nicotinamide adenine dinucleotide hydrogen (NADH)
b. Adenosine monophosphate (AMP)
c. adenosine triphosphate (ATP)
d. flavin adenine dinucleotide (FAD)
Answer  Explanation 

ANSWER: nicotinamide adenine dinucleotide hydrogen (NADH)

Explanation:
No explanation is available for this question!


5)   The redox reactions involve the exchange of

a. electrons between atoms
b. protons between atoms
c. neutrons between atoms
d. neurons between molecules
Answer  Explanation 

ANSWER: electrons between atoms

Explanation:
No explanation is available for this question!


6)   The important factor which plays a role in the ability of ATP to release and store energy is its

a. pH structure
b. cellular structure
c. nuclear structure
d. molecular structure
Answer  Explanation 

ANSWER: molecular structure

Explanation:
No explanation is available for this question!


7)   The number of electrons and proton in one hydrogen atom is

a. two
b. four
c. three
d. one
Answer  Explanation 

ANSWER: one

Explanation:
No explanation is available for this question!


8)   The example of an activity which follows the anabolic mechanism is

a. electrolysis
b. photosynthesis
c. glycolysis
d. respiration
Answer  Explanation 

ANSWER: photosynthesis

Explanation:
No explanation is available for this question!


9)   The O2 is the chemical formula of

a. free oxygen
b. free nitrogen
c. dioxide molecule
d. monoxide molecule
Answer  Explanation 

ANSWER: free oxygen

Explanation:
No explanation is available for this question!


10)   The example of anaerobic respiration is

a. acidic respiration
b. fermentation
c. anabolic respiration
d. catabolic respiration
Answer  Explanation 

ANSWER: fermentation

Explanation:
No explanation is available for this question!


11)   In the comparison of respiration, the chloroplasts are considered as a site for

a. diffusion
b. photosynthesis
c. photosynthesis
d. respiration
Answer  Explanation 

ANSWER: photosynthesis

Explanation:
No explanation is available for this question!


12)   The second phase of photosynthesis in which carbon dioxide is reduced to make

a. oxygen
b. glucose
c. adenine
d. ribose
Answer  Explanation 

ANSWER: glucose

Explanation:
No explanation is available for this question!


13)   The molecules of carbon dioxide are combined with five carbon compounds for the formation of six carbon

a. neutrons
b. protons
c. electrons
d. compounds
Answer  Explanation 

ANSWER: compounds

Explanation:
No explanation is available for this question!


14)   In the comparison of photosynthesis, the site for respiration is

a. centrosome
b. ribosomes
c. mitochondria
d. chromosomes
Answer  Explanation 

ANSWER: mitochondria

Explanation:
No explanation is available for this question!


15)   The factors that affect electrons on being an energy source are

a. arrangement of atoms only
b. location only
c. arrangement of molecules
d. arrangement of atoms and location
Answer  Explanation 

ANSWER: arrangement of atoms and location

Explanation:
No explanation is available for this question!


16)   The example of an activity which follows the catabolic mechanism is

a. photosynthesis
b. respiration
c. electrolysis
d. glycolysis
Answer  Explanation 

ANSWER: respiration

Explanation:
No explanation is available for this question!


17)   The British biochemist who discovered the series of reactions involved in the mechanism of respiration is

a. Sir Melvin Calvin
b. Sir Hans Calvin
c. Sir Hans Krebs
d. Sir Hans Melvin
Answer  Explanation 

ANSWER: Sir Hans Krebs

Explanation:
No explanation is available for this question!


18)   The factors that can act as limiting factors for the photosynthesis process includes

a. light intensity
b. availability of water
c. concentration of carbon dioxide
d. all of above
Answer  Explanation 

ANSWER: all of above

Explanation:
No explanation is available for this question!


19)   The high-energy molecules that are made by capturing light energy are

a. Adenosine monophosphate (AMP) and Adenosine diphosphate (ADP)
b. Adenosine monophosphate (AMP) and ATP
c. Nicotinamide adenine dinucleotide phosphate (NADPH) and Adenosine triphosphate (ATP)
d. Adenosine triphosphate (ATP and Deoxyribonucleic Acid (DNA)
Answer  Explanation 

ANSWER: Nicotinamide adenine dinucleotide phosphate (NADPH) and Adenosine triphosphate (ATP)

Explanation:
No explanation is available for this question!


20)   The redox reaction in living organisms involves the gain and loss of

a. carbon atoms
b. nitrogen atoms
c. hydrogen atoms
d. oxygen atoms
Answer  Explanation 

ANSWER: hydrogen atoms

Explanation:
No explanation is available for this question!