GATE (Graduate Aptitude Test in Engineering) Microbiology: Questions 113 - 115 of 125

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Question 113

Appeared in Year: 2016

Question

MCQ▾

Teichoic acid is composed of repetitive units of

Choices

Choice (4)Response

a.

keto-deoxy octanoic acid

b.

glucose

c.

N-acetyl glucosamine

d.

glycerol

Question 114

Appeared in Year: 2018

Question

MCQ▾

Which of the following combinations would improve the resolution of a microscope?

(i) Increasing the half aperture angle of the objective lens

(ii) Decreasing the wavelength of the illumination source

(iii) Decreasing the numerical aperture of the objective lens

(iv) Decreasing the refractive index of immersion medium

Choose the Correct Option:

Choices

Choice (4)Response

a.

(ii) and (iv)

b.

(ii) and (iii)

c.

(i) and (ii)

d.

(i) and (iii)

Question 115

Appeared in Year: 2018

Question

Numeric Answer▾

Active transport involves the movement of a biomolecule against a concentration gradient across the cell membrane using metabolic energy. If the extracellular concentration of a biomolecule is and its intracellular concentration is , the least amount of energy that the cell would need to spend to transport this biomolecule from the outside to the inside of the cell is ________ (up to 2 decimal points) . .

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