BIO TEST: 2018.8.31 VERSION A DO NOT WRITE ON!

Which molecules form the bilayer of the cell membrane?A. Carbohydrates B. Proteins C. Lipids D. DNA

Which best describes a selectively permeable plasma membrane?A. Only water can pass through the membrane.B. All substances can pass through the membrane.C. Only certain substances can pass through the membrane.D. All substances use carrier proteins to pass through the membrane.

Which structure maintains homeostasis, contains active transport pumps, and is composed of two layers of phospholipids?A. Plasma membrane B. Nucleus C. Cell wall D. Lysosome

Which structure is found mostly in plant cells and provides a rigid structure for the cell? A. Plasma membrane B. Nucleus C. Cell wall D. Lysosome

What is the primary component of a cell wall? A. Walloplast B. Membrane C. Cellulose D. Glucose

This table gives descriptions of prokaryotic and eukaryotic cells:Type of Cell

Description

I. Prokaryotic

unicellular, cholesterol-free membrane, no membrane-bound organelles, circular chromosomes

II.

Prokaryotic

multicellular, cholesterol-imbedded membrane, no membrane-bound organelles, circular chromosomes

III.

Eukaryotic

unicellular, cholesterol-imbedded membrane, no membrane-bound organelles, circular chromosomes

IV. Eukaryotic multicellular, cholesterol-free membrane, no membrane-bound organelles, circular chromosomes

WHICH one above is most correct?A. I B. II C. III D. IV

Eukaryotic organism’s plasma membranes contain glycoproteins not found in simpler organisms. Which organism would be least likely to contain glycoproteins in its plasma membrane?A. Fungi B. Bacteria C. Plants D. Protists

How does a bacterium cell compare with a typical animal cell?A. Bacteria are smaller B. Bacteria have no plasma membrane C.

Bacteria have no nucleus D. Bacteria have more organelles

A fossilized cell is discovered, and evidence suggests it reproduced on its own and had DNA, but a membrane did not enclose its DNA. Which type of organism would this most likely be? A. Virus B. Fungus C. Eukaryote D. Prokaryote

What word goes where the question mark is below

A. Nucleus B. Tissues C. Cell wall

Which diagram shows the cells in a hypotonic solution?

A) Left B) Middle C) Right

What type of cell is shown in the previous question?

a. squamous b. platelettes c. blood d. phospholipid

Which statement best describes osmosis?A. Diffusion of water from an area of greater solute concentration to one with lesser solute concentration.B. Active transport of water across the cell membrane.C. Learning a book's content by sleeping with it under your pillowD. Diffusion of water across a selectively permeable membrane from an area with greater water concentration to one with lesser water concentration.E. none of the above

What does diffusion and osmosis have in common?

A. They both involve movement of solidsB. They both involve movement of gasesC. They both need energy added to happenD. They both act to equalize concentration

Which of the following describes osmosis?

a. Movement of water across a semi-permeable membrane to dilute solid particles

b. Movement of particles across a semi-permeable membrane c. Movement of particles d. Movement of water across a semi-permeable membrane to dilute

solid particlese. None of the above

Use the following diagram to answer the questions below it:

Which of the following is pointing to the hydrophobic fatty acid only?

a. A b. B c. C d. D

Which of the following is pointing to an integral protein?

a. A b. B c. C d. D

Which of the following is pointing to a carb. Chain?

a. J b. I c. H d. B

Which of the following is pointing to cholesterol?

a. J b. I c. H d. B

Which of the following is pointing to a peripheral protein?

a. E b. I c. H d. J

Which of the following is pointing to the phospholipid bilayer?

a. C b. I c. H d. F

Which of the following is pointing to the phosphate head?

a. J b.H c. C d. D

Which of the following is pointing to the part of the membrane that receives signals?

a. A b. B c. C d. D

Which of the following is pointing to the part of the membrane that is the “name tag”?

a. A b. B c. H d. E

Which of the following is pointing to what is needed for passive transport?

a. A b. B c. C d. D