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mcqs of
,
1 : When we get energy from ATP, which bonds are broken?
A
:
P-P bonds
B
:
C-H bonds
C
:
N bonds
D
:
C-O bonds
2 : Which type of chlorophyll is most common in plants
A
:
Chlorophyll a
B
:
Chlorophyll b
C
:
Chlorophyll c
D
:
Chlorophyll d
3 : When yeast ferments glucose, the products are?
A
:
Alcohol and CO2
B
:
Green and red
C
:
Lactic acid
D
:
CO2 and H2O
4 : Light reactions of photosynthesis occur in:
A
:
Plasma membrane of cell
B
:
Cytoplasm of cell
C
:
Stromal of chloroplasts
D
:
Thylakoids of chloroplasts
5 : Which process in aerobic respiration produces the most ATP?
A
:
Glycolysis
B
:
Krebs cycle
C
:
Electronic transport chain
D
:
Fermentation
6 : What is a common by product of anaerobic in animal cells?
A
:
Oxygen
B
:
Water
C
:
Lactic acid
D
:
Carbon dioxide
7 : Where do dark reactions of photosynthesis occur?
A
:
Stromal of chloroplast
B
:
Thylakoids of chloroplast
C
:
Outer membrane
D
:
Cytoplasm
8 : How many ATP molecules are the net profit from one glucose molecules during anaerobic resp?
A
:
2
B
:
4
C
:
12
D
:
36
9 : Which molecule donates electrons in the light – dependent reactions of photosynthesis?
A
:
NADPH
B
:
Water
C
:
Oxygen
D
:
Carbon dioxide
10 : Which wavelengths of light are absorbed to maximum by chlorophyll?
A
:
Green and red
B
:
Green and blue
C
:
Red and blue
D
:
Chlorophyll d
11 : The loss of electron from atom is called:
A
:
Reduction
B
:
Oxidation
C
:
Anabolism
D
:
Catabolism
12 : The energy currency of all cells is:
A
:
Glucose
B
:
Protein
C
:
ADP
D
:
ATP
13 : Nitrogenous base of ATP molecule is:
A
:
Adenine
B
:
Guanine
C
:
Cytocine
D
:
Thyamine
14 : The number of phosphate groups in ATP molecule:
A
:
One
B
:
Two
C
:
Three
D
:
Four
15 : The example of a nucleotide is:
A
:
ATP
B
:
DTP
C
:
AMP
D
:
ADP
16 : ATP is an example of:
A
:
Amino acid
B
:
Fatty acid
C
:
Nucleic acid
D
:
Nucleotide
17 : In Ribose sugar number of carbon atoms is:
A
:
3
B
:
4
C
:
5
D
:
6
18 : The ATP molecule was discovered by:
A
:
Lipman
B
:
Karl Lohmann
C
:
Hamann
D
:
Calvin
19 : One mole of ATP release energy:
A
:
7.8 k cal
B
:
7.9 k cal
C
:
7.3 k cal
D
:
7.14 k cal
20 : 7.3 kilo calories/mole energy is equal to cal/mol energy.
A
:
73000
B
:
73
C
:
7300
D
:
730
21 : In which part of the leaf cells Chlorophyll is found:
A
:
Stroma
B
:
Plasma Membrane
C
:
Thylakoid
D
:
Cytoplasm
22 : Chlorophyll absorbs ______ type of light basically:
A
:
Green and blue
B
:
Red and yellow
C
:
Blue and red
D
:
Red and green
23 : The Covalent bond connecting two phosphates is indicated by the symbol:
A
:
Ratio
B
:
Proportion
C
:
Tilde
D
:
Colon
24 : Temperature that causes closure of stomata:
A
:
10°C-15°C
B
:
20°C-25°C
C
:
30°C-35°C
D
:
40°C-45°C
25 : Light is absorbed by:
A
:
Flower
B
:
Stem
C
:
Chlorophyll
D
:
Leaves
26 : The main photosynthetic pigment is:
A
:
Carotenoids
B
:
Chlorophyll-b
C
:
Chlorophyll-a
D
:
Chlorophyll-ab
27 : Light reaction takes place in:
A
:
Stroma
B
:
Thylakoid
C
:
Cytosol
D
:
Mitochondria
28 : Light cover the leaf surface:
A
:
1-2%
B
:
1-3%
C
:
1-4%
D
:
1-5%
29 : Each ATP molecule has the number of subunits:
A
:
3
B
:
4
C
:
1
D
:
2
30 : Light of which colour is more effective in photosynthesis?
A
:
Blue and Red
B
:
Green and Red
C
:
Blue and Green
D
:
Yellow and Blue
31 : In which process oxygen is released as a by-product?
A
:
Photosynthesis
B
:
Respiration
C
:
Fermentation
D
:
Reproduction
32 : By product of photosynthesis is:
A
:
CO₂
B
:
CO
C
:
N₂
D
:
O₂
33 : When was ATP discovered?
A
:
1909 A.D
B
:
1919 A.D
C
:
1929 A.D
D
:
1939 A.D
34 : In which part of chloroplast, light reactions of photosynthesis take place?
A
:
Outer membrane
B
:
Inner membrane
C
:
Fatty acids and glycerol
D
:
Thylakoid membranes
35 : In photosynthesis following gas is produced.
A
:
CO₂
B
:
CO
C
:
N₂
D
:
O₂
36 : Raw Material for Photosynthesis is:
A
:
H₂O₂, O₂
B
:
CO₂, O₂
C
:
Glucose
D
:
Water, CO₂
37 : From which bonds of ATP molecules energy is taken?
A
:
P-P bonds
B
:
C-H bonds
C
:
C-N bonds
D
:
C-O bonds
38 : Dark Reactions are part of:
A
:
Respiration
B
:
Necrosis
C
:
Photosynthesis
D
:
Metastasis
39 : Food contains energy in its bonds.
A
:
Kinetic
B
:
Potential
C
:
Heat
D
:
Solar
40 : Fritz Lipmann was awarded noble prize in:
A
:
1940
B
:
1941
C
:
1958
D
:
1986
41 : Light got Nobel prize in:
A
:
1961
B
:
1971
C
:
1985
D
:
1991
42 : Dark Reactions were studied by:
A
:
Schwann
B
:
Schleiden
C
:
Malvin Calvin
D
:
Robert Brown
43 : Another name for the dark reaction of Photosynthesis is:
A
:
Calvin cycle
B
:
Carbon cycle
C
:
Nitrogen cycle
D
:
Water cycle
44 : Through which process organisms get energy?
A
:
Photosynthesis
B
:
Respiration
C
:
Transpiration
D
:
Evaporation
45 : The greatest fuel of energy for cellular respiration is:
A
:
Glucose
B
:
Protein
C
:
Amino acid
D
:
Lipids
46 : Number of carbon atoms in pyruvic acid is:
A
:
03
B
:
07
C
:
09
D
:
30
47 : ______ is used in aerobic respiration:
A
:
Oxygen
B
:
Carbon dioxide
C
:
Light
D
:
Nitrogen
48 : The example of three carbon molecule is:
A
:
Glucose
B
:
Pyruvic acid
C
:
Starch
D
:
Ribose
49 : In glycolysis, glucose (6C) molecule is broken into two molecules of:
A
:
NADH
B
:
FADH₂
C
:
Pyruvic acid (3C)
D
:
Acetyl-CoA
50 : Glycolysis takes place in:
A
:
Nucleus
B
:
Cytoplasm
C
:
Ribosomes
D
:
Mitochondria
51 : Which of these can enter into Krebs cycle?
A
:
Glucose
B
:
Pyruvic Acid
C
:
Citric Acid
D
:
Acetyl-CoA
52 : The sites of aerobic respiration in cell are:
A
:
Plastids
B
:
Ribosomes
C
:
Mitochondria
D
:
Golgi bodies
53 : Which step of cellular respiration occurs in cytoplasm?
A
:
Krebs's cycle
B
:
Electron transport chain
C
:
Glycolysis
D
:
Lactic acid fermentation
54 : How many molecules of CO₂ are produced when Krebs cycle operates once:
A
:
1
B
:
2
C
:
3
D
:
6
55 : In which stage of respiration carbon dioxide gas is produced?
A
:
Glycolysis
B
:
Krebs cycle
C
:
Electron transport chain
D
:
None of these
56 : Nicotinamide adenine dinucleotide is a
A
:
Enzyme
B
:
Co-Enzyme
C
:
Factor
D
:
Co-Factor
57 : How many ATP molecules are formed during cellular respiration?
A
:
28
B
:
32
C
:
36
D
:
40
58 : During anaerobic oxidation of glucose molecule, ATP molecules are gained as net profit.
A
:
2
B
:
4
C
:
6
D
:
8
59 : Each FADH₂ produces ATP:
A
:
2
B
:
4
C
:
6
D
:
8
60 : Which is the final step of cellular respiration?
A
:
Kreb's cycle
B
:
Electron transport chain
C
:
Glycolysis
D
:
Fermentation
61 : The whole series of Light Reactions is called:
A
:
S-Scheme
B
:
Z-Scheme
C
:
L-Scheme
D
:
All of these
62 : Light compounds produced during light reactions are:
A
:
FADH
B
:
NADPH, ATP
C
:
C₆H₁₂O₆
D
:
C₁₂H₂₂H₁₁
Biology 9th MCQs || Ilam Ghar
Chapter 8 : Bioenergetics
Biology 9th
