chap.4 Bioenergetics MCQs

 

1.	Chapter no.4 bioenergetics
2.	Which product is produced when glysine is converted to serine? (a) Glucose                  (b) Carbon dioxide (c) Oxygen                   (d) Hydrogen	B
3.	In C4 photosynthesis the first formed product is: (a) Oxaloacetate           (b) PGA (c) 4-carbon compound (d) Both a and c	D
4.	Which enzyme is used for the fixation of carbon dioxide in C4 photosynthesis? (a) Rubisco                  (b) Pepco (c) RuBP                      (d) All of these	B
5.	Number of ATPs produced from one NADH is: (a) 1                             (b) 2 (c)3                              d) 4	C
6.	Number of ATPs produced from FADH is: (a) 1                             (b) 2  (c) 3                            (d) 4	B
7.	Bioenergetics is the study of energy transformation in (a) Non living thing      (b) Atmosphere (c) Biological system   (d) All of these	C
8.	Which one is the ultimate source of energy for living organisms? (a) Petrol                      (b) Diesel (c) CNG                       (d) Sunlighta	d
9.	Which one of the following process is exergonic and destructive process? (a) Respiration                         (b) Photosynthesis (c) Both a and b           (d) None of these	A
10.	About …… of the total of sunlight that enters our atmosphere reaches the earth surface (a) 10%                                    (b) 20 % (c) 30%                                    ( d) 40 %	D
11.	Chlorophyll is a complex organic compound which absorbs mainly and portion of sunlight. (a) Blue and green       (b) Red and green (c) Blue and red           (d) Green and yellow	C
12.	The formula of chlorophyll-a is: (a) C55H72O5N4Mg        (b) C55H70O6N4Mg (c) C55H78O6N4Mg        (d) C35H70O6N4Mg	A
13.	In C4 plant synthesis of sugar occurs in: (a) Mesophyll cell (b) Bundle sheath cells (c) Spongy parenchyma cells (d) Palisade parenchyma cells	B
14.	The number of carbon atoms present in ribulose biphosphate is:. (a) 6                 (b) 5 (c)4                  (d) 3	B
15.	Cyclic photophosphorylation releases: (a) ATP and NADPH2 (b) ATP, O2 and NADPH2 (C) ATP (d) NADPH2 and O2	C
16.	In the dark reaction of photosynthesis: (a) PGAL is formed     (b) CO; is fixed (C) ATP is consume     (d) All of these	D
17.	Carbon dioxide is more abundant in (a) Stroma                    (b) Thylakoid (C) Both of these         (d) None of these	A
18.	Which of these is hydrophilic? (a) Porphyrin               (b) Phytol (c) Both of these          (d) None of these	A
19.	Which part of plant capture light energy: (a) Mesophyll Cell       (b) Plastid (c) Chloroplast             (d) All of these	D
20.	The presence of free oxygen made possible the evolution of: (a) Respiration             (b) Photorespiration (c) Both b and a           (d) None of these	A
21.	Which part of chlorophyll contain Mg (a) Porphyrin               (b) Pyrrole rings (c) Haem portion         (d) All of these	A
22.	Which statement best define Bioenergetics: (a) Reaction or processes that require energy and then store it (b) Reaction which release energy (c) The anabolic process in living cells (d) Process by means of which living cells store use and release energy	D
23.	The curved - symbol in ATP indicate P-P-P: (a) Low Energy bond   (b) High Energy bond (c) Unstable bond        (d) Both b and c	D
24.	During photosynthesis oxygen come out from water was confirmed using IN isotopes of oxygen by: (a) C.B Von Neil          (b) Robin Hill (c) R. Scarisbrick         (d) Samuel Rubin	B
25.	Thylakoids membranes containing chlorophyll are involved in the synthesis of ATP by the process of: (a) Photosynthesis        (b) Chemosynthesis (c) Chemiosmosis        (d) Osmosis	C
26.	What does not occur in the light reaction? (a) Photolysis (b) Photophosphorylation. (c) Oxidation of water (d) Reduction of CO2	D
27.	The total photosynthesis including the food consumed by the producer is: (a) Productivity (b) Primary productivity (c) Gross primary productivity (d) Net primary productivity	C
28.	A photo system contains (a) ADP+Chlorophyll "b" (b) Photon (c) Light+Chlorophyll "a" (d) Pigment or light capturing Antenna + reaction center + electron acceptor	D
29.	How many ATP molecules are synthesized and released as a result of substance level phosphorylation: (a) 2 ATP                     (b) 4 ATP (c) 6 ATP                     (d) 36 ATP	B
30.	Which of the following is not source of CO2? (a) The burning of fuel            (b) Photosynthesis (c) The decomposition of animal matter (d) Respiration	B
31.	Which is least important in photosynthesis? (a) Sunlight                  (b) Green light c) Blue light                 (d) Red light	B
32.	60% of the world's photosynthesis is carried out by: (a) Monocots               (b) Gymnosperms (c) Angiosperms          (d) Algae	D
33.	The rate of photosynthesis in independent of: (a) Light intensity         (b) Duration of light (c) Light quality           (d) Temperature	B
34.	How many ATP produced in cellular respiration is a result of oxidative phosphorylation? (a) A maximum of 32  (b) A maximum of 36 (c) A maximum of 38  (d) A maximum of 4 ATP	A
35.	The light independent reactions occur in: (a) Grana                     (b) Stroma (c) Cytoplasm              (d) Outer layer of chlorophyll	B
36.	During photosynthesis green plants capture light energy and converts it into: (a) Heat energy                        (b) Chemical energy (c) Mechanical energy (d) All of these	B
37.	Which pigment do not belong to caratenoid? (a) Green                     (b) Yellow (c) Red                         (d) Orange	A
38.	By the process of photosynthesis carbon dioxide is converted into: (a) Monosaccharide (b) Disaccharide (c) Polysaccharide (d) Polysaccharide	A
39.	Which one is a correct statement? (a) Short wavelengths are less energetic (b) Long wavelengths are more energetic (c) Short wavelengths are more energetic (d) All are correct	C
40.	The light dependent reactions occur in: (a) Grana (b) Stroma (c) Cytoplasm (d) Outer layer of chlorophyll!	D
41.	Number of phosphates in one ATP are: (a) 0                 (b) 1 (c) 2                 (d) 3	C
42.	Visible light range is: (a) 360-760 nm                        (b) 390-790 nm (c) 390-760 nm                        (d) 390-860 nm	D
43.	Chlorophyll absorbs wavelength of: (a) 390 - 430 nm          (b)390-760 nm (c) 670 - 700 nm          (d) Both a and c	B
44.	The wavelength absorbed by carotenoids ranges in between: (a 400-500 nm                         (b) 500-600 nm (C) 600-700 nm           (d) All of these	B
45.	Antenna complex contains: (a) Chlorophyll A        (b) Chlorophyll B (c) Both of these          (d) None of these	A
46.	In non-cyclic electron transport chain of light reaction the first electron acceptor is (a) PQ                          (b) cyt "b" (c) cyt "f                      (d) PC	D
47.	Which one is not an electron acceptor of photosystem II: (a) PQ                          (b) cyt (c) PC                          (d) Fd	C
48.	The product of light reaction is: (a) ATP                                    (b) NADPH (c) Both a and b                       (d) None of these.	B