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Study the following statements.<br>1. Glycolysis takes place in cytoplasm.<br>2. Kreb's cycle takes place in mitochondria.<br>3. Electron transport chain takes place in mitochondria.<br>Which of the statements given above are true ?
A
1, 2 and 3
B
1 and 2
C
2 and 3
D
1 and 3
Correct Answer:
1, 2 and 3
Consider the following statements.
1. Glycolysis occurs in cytoplasm.
2. Glycolysis does not require oxygen.
3. In anaerobic organisms, only glycolysis occur and that is called fermentation.
Which of the statement(s) given above is/are correct about glycolysis ?
A
Only 1
B
Only 2
C
1, 2 and 3
D
None of these
Consider the following statements.
1. When evaporation takes place, cooling takes place.
2. Evaporation takes place at all temperature, boiling takes place only at the boiling point.
3. Evaporation is a surface phenomenon.
Which of the statements given above is/are true?
A
Only 1
B
1 and 2
C
2 and 3
D
1, 2 and 3
From an alloy, two specimens are machined and tested separately under tension and compression. The engineering stress-strain curves as well as the true stress-true strain curves for tension and compression are plotted in the same diagram. Identify the correct statements:
P. The engineering stress-strain curves in tension and compression are identical.
Q. The true stress-true strain curve in compression is lower than the true stresstrue strain curve in tension due to Bauschinger effect.
R. The true stress-true strain curve in tension is above the corresponding engineering stress-strain, curve.
S. The true stress-true strain curve in tension and compression are identical.
A
P, Q
B
Q, R
C
Q, S
D
R, S
The number of ATP molecules produced by electron transport system from Krebs cycle intermediates in a single turn is
A
11
B
12
C
14
D
16
In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if theyseem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statement:
(I) Major companies are nowadays surviving because of the strong supply chain system.
(II) Supply chain comprises of logistics, retailers and distributers. Conclusions:
(I) Retailers play most important role because they interact with customers on first hand.
(II) If an organization has strong logistics, then product can easily be available to the customers in such an era of competition.
A
Only conclusion II follows
B
Conclusion I and II both follow
C
Neither I nor II follow
D
Only conclusion I follows
Find the velocity of an electron when its kinetic energy is equal to one electron volt (in 105m/s). Given charge of an electron e = 1.6 x 10-19 and mass of an electron m = 9.1 x 10-31.
A
3.9
B
4.9
C
5.9
D
6.9
The enzyme that serves as the connecting link between glycolysis and Krebs cycle is ______
A
phosphoenolpyruvic acid
B
glyceraldehyde
C
acetyl CoA
D
isomerase
The connecting link between glycolysis and Krebs cycle
A
Acetyl Co A enzyme
B
Isocitrate
C
Citrate
D
Glucose
The numbers of ATP molecules produced during glycolysis, during oxidation of pyruvic acid to acetyl CoA and during the Krebs cycle are, respectively,
A
2, 6 and 30
B
4, 8 and 26
C
8, 6 and 24
D
10, 8 and 20
Which of the following is not an electron acceptor in the electron transport chain of plants?
A
Quinone
B
Ferredoxin
C
Plastoquinone
D
Phycobilins