Biology today

1 64. choose the correct labelling from the given options.

Glycolysis Fermentation

Process

Glucose

Glyceraldehyde-3-P

A

B

C

ADP

ATP

1, 3 bishosphoglycerate Pyruvate

NAD+

NADH+H+

(a) a-ethanol, B-cO 2 , c-acetaldehyde

(b) a-cO 2 , B-acetaldehyde, c-ethanol

(c) a-cO 2 , B-ethanol, c-acetaldehyde

(d) a-ethanol, B-acetaldehyde, c-cO 2

165. match the columns.
     Column I Column II
     a. Oxaloacetate (i) 6 c compound
     B. Phosphoglyceraldehyde (ii) 5 c compound
     c. Isocitrate (iii) 4 c compound
     D. a-ketoglutarate (iv) 3 c compound
     (v) 2 c compound
     (a) a-(iv), B-(v), c-(ii), D-(iii)
     (b) a-(iii), B-(v), c-(i), D-(ii)
     (c) a-(iii), B-(iv), c-(i), D-(ii)
     (d) a-(ii), B-(iv), c-(i), D-(v)


166. Which of the following are false statements?


167. aerobic respiratory pathway is appropriately called
     as amphibolic pathway.


168. rQ for carbohydrate as substrate is one, if respiration
     is anaerobic.


169. In one turn of Krebs cycle, 12 aTP equivalent useful
     energy is release, along with 3 cO 2 molecules released.


170. components of ETS are attached to inner
     mitochondrial membrane on its m-side.


171. cytochrome oxidase and succinate dehydrogenase
     are embedded in inner mitochondrial membrane.
     (a) 1 and 5 only (b) 1 and 4
     (c) 2, 3 and 4 (d) 2, 3, 4 and 5


172. Starting chemical of EmP pathway is a
     (a) reduced co-enzymes (b) pyruvate
     (c) hexose sugar (d) sucrose or starch.


173. In anaerobic respiration how much energy is released
     from one glucose molecule?
     (a) > 13% (b) 40-50%
     (c) < 7% (d) 15-17%
     169. Study the given figure and select the incorrect option
     regarding this.

PiPi

Y

ADP

Stalk

ATP

Head

2H 2H+

+

F 0 F 1

PiPi

Y

ADP

Stalk

ATP

Head

2H 2H+

+

F 0 F 1

(a) The figure represents chemiosmotic aTP synthesis by

oxysomes where X is the mitochondrial matrix and Y

is the inner mitochondrial membrane.

(b) Enzyme required for aTP synthesis is aTP synthase,

considered to be the complex-V of ETS.

(c) The figure represents oxidative phosphorylation which

is the synthesis of energy rich aTP molecules with the

help of energy liberated during oxidation of reduced

co-enzymes (NaDh, FaDh) produced in respiration.

(d) aTP synthase becomes active only when there is a

proton gradient having higher concentration of protons

(h+) on the F 1 side as compared to the F 0 side.

170. Which of the following exhibits the highest rate of
     respiration?
     (a) Growing shoot apex (b) Germinating seed
     (c) root tip (d) Leaf bud


171. rise in the water level from X to Y in the given
     experimental set-up demonstrates

Respiring seeds

Y

Water

X

KOH

(a) aerobic respiration (b) anaerobic respiration

(c) photosynthesis (d) rQ > 1

172. Two trees of same species and same size are grown at
     different places. One growing in Kota, rajasthan and
     other growing at sea shore. Which of the two will loose
     more water in 24 hours?
     (a) Growing at sea shore
     (b) Growing at Kota