MDCAT Biology MCQs with Answers – All 16 Units – Page 35

Question 681 Cell Structure and Function

13. Spherical or tubular membranes which separate the material present in endoplasmic reticulum from that of cytoplasmic material are called

Correct answer B. Cisternae

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Question 682 Ecosystem

The biosphere covers about

Correct answer D. 16-20 km

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Question 683 Cell Structure and Function

12. Strengthening material of prokaryotic cell wall is

Correct answer D. Peptidoglycan or Murein.

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Question 684 Cell Structure and Function

11. Cellulose is the major component of

Correct answer A. Primary wall

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Question 685 Ecosystem

Study of a single population’s relationship to its environment is called

Correct answer C. Autecology

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Question 686 Ecosystem

The role a species plays in a community including behavior and influence is

Correct answer B. Niche

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Question 687 Cell Structure and Function

10. The first layer of cell wall which is formed is:

Correct answer A. Primary wall

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Question 688 Ecosystem

The actual location or place where an organism lives is

Correct answer D. Habitat

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Question 689 Cell Structure and Function

9. Movement of the material across the cell membrane which does not requiring expenditure of metabolic energy is called

Correct answer B. Passive transport

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Question 690 Ecosystem

Major regional ecological community of plants and animals forms

Correct answer C. Biomes

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Question 691 Cell Structure and Function

8. Which of the statement about cell membrane is not true?

Correct answer C. It contains charged pores thus ions being charged particles cross cell membrance much easier than neutral particles.

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Question 692 Ecosystem

All populations within an ecosystem interconnected to one another are known as

Correct answer C. Community

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Question 693 Cell Structure and Function

7. Percentage of proteins in cell membrane is

Correct answer C. 60-80%

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Question 694 Cell Structure and Function

6. In cell fractionation various components of cells including its organelles can be isolated in different layers depending upon:

Correct answer D. Both a and b

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Question 695 Ecosystem

Study of relationship of organisms to their environment is

Correct answer A. Ecology

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Question 696 Cell Structure and Function

5. Magnifying power of electron microscope as compared to eye is

Correct answer B. 250000X

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Question 697 Cell Structure and Function

4. Resolution power of a compound microscope is

Correct answer A. 2.0 ?m

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Question 698 Cell Structure and Function

Who first observed and thus hypothesized that new cells are formed from previously existing living cell?

Correct answer B. Rudolph Virchows

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Question 699 Cell Structure and Function

Who opposed the idea the cell is an empty space bounded by thick wall?

Correct answer C. Robert Brown

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Question 700 Cell Cycle

Who coined the term CELL?

Correct answer C. Robert Hook

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