IAT_NEST Biology MCQ Practice

Practice Questions

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Q1SingleMarks: 4.00Negative: -1.00

Which statement correctly defines the Michaelis constant KM?

A. Enzyme concentration at optimal pHB. Reaction velocity at half optimal substrate concentrationC. Substrate concentration when velocity is half VmaxD. Enzyme concentration at optimal temperature

Q2SingleMarks: 4.00Negative: -1.00

Immature lymphocytes are primarily found in which organ?

A. Peyer’s patchesB. SpleenC. LiverD. Thymus

Q3SingleMarks: 4.00Negative: -1.00

Which statement best describes the G0 stage?

A. Cells are dyingB. Cells are metabolically active but not dividingC. Cells are highly proliferativeD. Cells proliferate but are metabolically inactive

Q4SingleMarks: 4.00Negative: -1.00

Match the following features to the animals: 1 Open circulatory system; 2 Closed circulatory system; 3 Earthworm; 4 Malpighian tubules; 5 Nephridia; 6 Cockroach. Which is correct?

A. 1,3,4 and 2,5,6B. 1,4,6 and 2,3,5C. 1,3,5 and 2,4,6D. 1,5,6 and 2,3,4

Q5SingleMarks: 4.00Negative: -1.00

A population of 100 grows at intrinsic rate 0.1 with carrying capacity 200. What is its current growth rate?

A. 9/yearB. ZeroC. 2/yearD. 5/year

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