SAT II Biology M : Cell Membrane and Cell Wall

Study concepts, example questions & explanations for SAT II Biology M

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Example Questions

Example Question #4 : Sat Subject Test In Biology

The cell is the most basic unit of life in all known organisms. Integral to its function is its ability to maintain intracellular and extracellular boundaries. Maintaining these boundaries is the function of membranes.

Which of the following choices include cells that have both a cell wall and a membrane?

I. Bacterial cells
II. Fungal cells
III. Animal cells

Possible Answers:

I and II

I only

I, II, and III

II and III

I and III

Correct answer:

I and II

Explanation:

Plants, bacteria, and fungi have both a membrane as well as a cell wall. On the other hand, animal cells have only a membrane.

Example Question #5 : Sat Subject Test In Biology

The cell walls of bacteria, plants, and fungi are of varying composition. Plant cells are composed of __________.

Possible Answers:

peptidoglycan

glycogen

cellulose

carboxypeptidase

chitin

Correct answer:

cellulose

Explanation:

Plant cell walls are made of cellulose, a polysaccharide.

Example Question #1 : Cell Membrane And Cell Wall

The cell walls of bacteria, plants, and fungi are of varying composition. Fungi cells are composed of __________.

Possible Answers:

carboxypeptidase

chitin

glycogen

cellulose

peptidoglycan

Correct answer:

chitin

Explanation:

Fungal cells have cell walls composed of chitin, a polysaccharide similar in structure to cellulose.

Example Question #7 : Sat Subject Test In Biology

The cell walls of bacteria, plants, and fungi are of varying composition. Bacterial cells are composed of __________.

Possible Answers:

peptidoglycan

carboxypeptidase

chitin

glycogen

cellulose

Correct answer:

peptidoglycan

Explanation:

Bacterial cell walls are composed of peptidoglycan, a protein and sugar moiety. 

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