MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
NEET
NEET Biology MCQ
Neet Botany Respiration In Plants Mcq
Quiz 5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Q.1
RQ is less than one for … ..[ RPMT 2002]
0%
a) Carbohydrate
0%
b) Organic acid
0%
c) Starch
0%
d) Protein
Explanation
Answer : (d)
Q.2
RQ of sprouting potato is .. ..[ KCET 2002]
0%
a) 1
0%
b) > 1
0%
c) < 1
0%
d) zero
Explanation
Answer : (a)
Q.3
Mechanism of aerobic respiration/tricarboxylic acid pathway was discovered by … .. [ AFMC 2004]
0%
a) Calvin
0%
b) Krebs
0%
c) Pasteur
0%
d) Hatch and Slack
Explanation
Answer : (b)
Q.4
Dough kept overnight is warm place become soft anad spongy due to … ..[ CBSE 2004]
0%
a) Osmosis
0%
b) Absorption of CO2 from atmosphere
0%
c) Cohesion
0%
d) Fermentation
Explanation
Dough kept overnight in warm weather becomes soft and spongy because of fermentation. Fermentation is a metabolic process that converts sugar to acids, gases and/or alcohol. It occurs in yeast and bacteria, but also in oxygen-starved muscle cells, as in the case of lactic acid fermentation. So, fermentation occurred in dough causes conversion of sugars to acids or alcohols and CO2 which makes the dough soft and spongy. Thus option B is correct. Absorption of carbon dioxide from atmosphere, cohesion and osmosis can not make the dough soft and spongy. Thus, other options are incorrect. Answer : (d)
Q.5
Single turn of citric acid cycle yields … .[ Kerala 2005]
0%
a) 2FADH2 , 2NADH2, 2GTP
0%
b) 1FADH2 , 2NADH2, 1GTP
0%
c) 1FADH2 , 3NADH2, 1GTP
0%
d) 1FADH2 , 4NADH2, 1GTP
Explanation
Answer : (c)
Q.6
Alcoholic fermentation occurs in the presence of … .. [
0%
a) Zymase
0%
b) Amylase
0%
c) Invertase
0%
d) Maltase
Explanation
Answer : (a)
Q.7
In glycolysis, 6C compounds are split into 3-C compounds by enzyme .. .[ Odisha 2007]
0%
a) Isomerase
0%
b) Aldolase
0%
c) Hexokinase
0%
d) Dehydrogenase
Explanation
Answer : (b)
Q.8
F1 particle of oxysome … … [ MHTCET 2009]
0%
a) Releases proton energy
0%
b) Utilises proton energy
0%
c) Has no role in energy consumption
0%
d) Lies in outer chamber
Explanation
Answer : (d)
Q.9
Number of ATP molecules produced from 1 glucose molecule in aerobic respiration … ..[ AIIMS 2012]
0%
a) 36
0%
b) 32
0%
c) 30
0%
d) 28
Explanation
Answer : (a)
Q.10
In alcoholic fermentation, two molecules of glucose produce ethanol and CO2 respectively … ..[ AMU 2011]
0%
a) 2+2
0%
b) 3+3
0%
c) 4+4
0%
d) 6+6
Explanation
Answer : (c)
Q.11
Energy currency ( reservoir) of the cells is … ..[ AMU 2001]
0%
a) AMP
0%
b) ATP
0%
c) ENA
0%
d) DNA
Explanation
Answer : (b)
Q.12
The amount of energy given by one mole of ATP is … ..[ CBSE 1996]
0%
a) 7.3 kcal
0%
b) 721 kcal
0%
c) 7600 kcal
0%
d) 1000 kcal
Explanation
Answer : (a)
Q.13
Connecting link between glycolysis and Krebs cycle is/before entering Krebs cycle pyruvate is changed to … … [ CBSE 1997]
0%
a) Oxaloacetate
0%
b) PEP
0%
c) Pyruvate
0%
d) Acetyl CoA
Explanation
Answer : (d)
Q.14
Terminal cytochrome of respiratory chain which donates electrons to oxygen is … .. [ CBSE 1992]
0%
a) Cyt.b
0%
b) Cyt.c
0%
c) Cyt.a1
0%
d) Cyt.a3
Explanation
Answer : (d)
Q.15
Which would be the last substrate to be used in respiration? … … [ AMU 1993]
0%
a) Carbohydrate
0%
b) Protein
0%
c) Fat
0%
d) Organic acids
Explanation
Answer : (b)
Q.16
Iron-porphyrin protein complex occurs in .. .. [ BHU 1996]
0%
a) Cytochrome
0%
b) Chlorophyll
0%
c) Phytochrome
0%
d) Both a and b
Explanation
Answer : (a)
Q.17
αKetoglutarate dehydrogenase brings about … .. [ AMU 1997]
0%
a) Oxidation and decarboxylation
0%
b) Oxidation
0%
c) Decarboxylation
0%
d) Reduction
Explanation
Answer : (a)
Q.18
Substrate phosphorylation occurs during … … [ JIPMER 1997]
0%
a) Fumaric acid → Malic acid
0%
b) Oxalosuccinic acid → α-Ketoglutaric acid
0%
c) Succinic acid → Fumaric acid
0%
d) α-Ketoglutaric acid → Succinic acid
Explanation
Answer : (d)
Q.19
Before entering respiratory pathway, amino acids are … ..[ RPMT 1998]
0%
a) Decarboxylated
0%
b) Hydrolysed
0%
c) Deaminated
0%
d) Phosphorylated
Explanation
Answer : (c)
Q.20
Which product of glycolysis is consumed in alcohol fermentation? … [ AMU 1999]
0%
a) NADH2
0%
b) ATP
0%
c) ATP and NADH2
0%
d) CO2
Explanation
Answer : (a)
Q.21
Energy released in aerobic respiration is higher than the one available from anaerobic respiration by … .. [ Har. PMT 2000[
0%
a) 8 times
0%
b) 18 times
0%
c) 28 times
0%
d) 36 times
Explanation
Answer : (b)
Q.22
During glycolysis, glucose is first changed to … .. [ HPPMT 2001]
0%
a) Glucose 6-phosphate
0%
b) Fructose 6-phosphate
0%
c) Glucose 1, 6-phosphate
0%
d) Fructose 1, 6-phosphate
Explanation
Answer : (a)
Q.23
Net/direct gain of ATP molecules formed in glycolysis is gain of ATP molecules formed in glycolysis is … .. [ MHTCET 2011]
0%
a) Oxidative carboxylation
0%
b) Oxidative decarboxylation
0%
c) Dehydrogenation
0%
d) Hydrogenation and decarboxylation
Explanation
Answer : (b)
Q.24
At the end of citric acid cycle most of the energy is transferred to … ..[ AMU 2002]
0%
a) NADH and FADH2
0%
b) Oxaloacetic acid
0%
c) Citric acid
0%
d) ATP
Explanation
Answer : (a)
Q.25
Two names referring to same thing … ..[ CBSE 2003]
0%
a) Krebs cycle and Calvin cycle
0%
b) Tricarboxylic acid cycle and citric acid cycle
0%
c) Citric acid cycle and Calvin cycle
0%
d) Tricarboxylic acid cycle and urea cycle
Explanation
Answer : (b)
Q.26
Match and find the correct combination ... ...[ JKCMEE 2003] a) respiration in bacteria b) Respiration in cyanobacteria c) respiration in eukaryotic cells d) Mitochondria e) Cytoplasmic membrane f) mesosomes
0%
a) a – e, b – f, c – d
0%
b) a – f, b – e, c – d
0%
c) a – d, b – f, c –e
0%
d) a – e, b – d, c –f
Explanation
Answer : (b)
Q.27
An enzyme absent in mitochondrial ETS is .. .. [ Har PMT 2003]
0%
a) FeS protease
0%
b) Glucose 6-phosphate dehydrogenase
0%
c) NADH dehydrogenase
0%
d) Cytochrome c-oxidase
Explanation
Answer : (b)
Q.28
How many ATP molecules are released when one molecule of glucose is oxidized in our liver cells? … .[ CPMT 2005]
0%
a) 36
0%
b) 38
0%
c) 2
0%
d) 8
Explanation
Answer : (b)
Q.29
During night, a person should not sleep under a tree because the tree … ..[ Maipal 2006]
0%
a) Release O2 during night
0%
b) Does not release CO2 during night
0%
c) Releases CO2 during night
0%
d) Releases water during guttation
Explanation
Answer : (c)
Q.30
Chemiosmosis theory of ATP synthesis in chloroplasts and mitochondria is based on … …[ CBSE 2005]
0%
a) Membrane potential
0%
b) Accumulation of Na+ ions
0%
c) Accumulation of K+ ions
0%
d) Proton gradient
Explanation
In Chemiosmosis theory of ATP synthesis in chloroplasts and mitochondria involves electron transport chains which excite electrons and produce energy this energy is used to pump protons (H+ ions) across a membrane against the concentration gradient As the protons passively diffuse back across the membrane, they come in through ATP synthase and ATP is produced (this part is called oxidative phosphorylation) Difference in the mitochondria, chemiosmosis begins in the mitochondrial matrix while in the chloroplast, chemiosmosis begins in the stroma (the fluid of the chloroplast) Answer : (d)
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page