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MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Biology

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Biology
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What would be the outcome if the PCT is removed from the nephron?

[4] Excretion and Osmoregulation
Chapter: [4] Excretion and Osmoregulation
Concept: undefined >> undefined

The pocket into which a substrate binds to an enzyme is called as ____________.

[1] Biomolecules
Chapter: [1] Biomolecules
Concept: undefined >> undefined

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Study the following statements and select correct option.

Statement I: Removal of co-factors from the enzyme disrupts the catalytic activity of the enzyme.

Statement II: Prosthetic groups bound tightly to apoenzymes in order to make them catalytically active.

[1] Biomolecules
Chapter: [1] Biomolecules
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For which of the following reason RNA primer is must for initiation of DNA replication?

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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Prosthetic groups differ from co-enzymes in that-

[1] Biomolecules
Chapter: [1] Biomolecules
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Which of the following is the correct definition of summation effect?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Assertion (A): DNA replication is said to be semi-conservative.

Reason (R): After DNA replication, each daughter molecule has one old and one new strand.

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
Concept: undefined >> undefined

Currently, ______ mass extinction is considered to be the progressing at an alarming rate due to the loss of biodiversity.

[16] Biodiversity, Conservation and Environmental Issues
Chapter: [16] Biodiversity, Conservation and Environmental Issues
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Glycosidic bonds would be broken under the activity of which enzyme?

[1] Biomolecules
Chapter: [1] Biomolecules
Concept: undefined >> undefined

Which among the following is an exception to invasive species?

[16] Biodiversity, Conservation and Environmental Issues
Chapter: [16] Biodiversity, Conservation and Environmental Issues
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NADP is ____________.

[1] Biomolecules
Chapter: [1] Biomolecules
Concept: undefined >> undefined

Study the following statements with respect to enzymes and select the correct option.

  1. Most of the enzymes work at an optimum temperature between 20°C and 35°C.
  2. Enzymes are destroyed at lower temperature of 10-20°C.
  3. Each enzyme exhibits its highest activity at a specific pH i.e. optimum pH.
[1] Biomolecules
Chapter: [1] Biomolecules
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'The Evil Quartet' is a concept which describes the ______.

[16] Biodiversity, Conservation and Environmental Issues
Chapter: [16] Biodiversity, Conservation and Environmental Issues
Concept: undefined >> undefined

Match the Column I (Enzymes) with Column II (Functions) and select the correct option:

  Column I   Column II
i. Restriction endonuclease a. Joins the DNA fragments
ii. Restriction exonuclease b. Extends primers on genomic DNA template
iii. DNA ligase c. Cuts DNA at Specific position
iv. Taq polymerase d. Removes nucleotides from the ends of DNA
[1] Biomolecules
Chapter: [1] Biomolecules
Concept: undefined >> undefined

Identify the CORRECT combination of statements with respect to DNA synthesis.

I. Always the direction of DNA polymerization 5' → 3' when referring to the polarity of strand being synthesized.

II. DNA ligase forms hydrogen bonds between two newly synthesized DNA strands.

III. DNA polymerases on their own cannot initiate the process of replication.

IV. DNA polymerase can catalyse polymerization in both 5'→ 3' and 3'→ 5' direction.

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
Concept: undefined >> undefined

The proximal end of the renal tubule is a cup like structure called ______.

[4] Excretion and Osmoregulation
Chapter: [4] Excretion and Osmoregulation
Concept: undefined >> undefined

Which of the following term correctly describes the movement of ribosome on the mRNA?

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
Concept: undefined >> undefined

Which of the following is present at the sticky ends of a fragmented DNA molecule?

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
Concept: undefined >> undefined

Which of the following is TRUE with respect to Respiratory Quotient?

[2] Respiration and Energy Transfer
Chapter: [2] Respiration and Energy Transfer
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Select the INCORRECT statement.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
Concept: undefined >> undefined
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