Biology Exploring Study Set 1

Biology

Quiz 4 :

Cell Membranes and Signaling

Quiz 4 :

Cell Membranes and Signaling

Question Type
search
arrow
Which of the following is a function of the sterols that are found in animal cell membranes?
Free
Multiple Choice
Answer:

Answer:

A

Tags
Choose question tag
close menu
arrow
What are the major structural components of a cell membrane?
Free
Multiple Choice
Answer:

Answer:

D

Tags
Choose question tag
close menu
arrow
Which type of lipid is most important in the structure of biological membranes?
Free
Multiple Choice
Answer:

Answer:

C

Tags
Choose question tag
close menu
arrow
In the fluid mosaic model of cell membranes, what does the "fluid" part of the model refer to?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
In an aqueous environment, how are the phospholipids of a membrane arranged?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
Which of the following strongly suggests that the membrane is exposed to low temperature?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
One component of the cell membrane functions as a selective barrier, and one component has specific functions such as transport, recognizing other cells, and binding to other cells. Which pair of terms refers to these two components, respectively?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
What does the "mosaic" part of the fluid mosaic model refer to?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
Why do the cells die when the ambient temperature drops to freezing?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
Unsaturated fatty acids cause a membrane to be fluid at lower temperatures. What is a reasonable explanation for this?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
Which phrase describes the selective permeability of a membrane?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
What is the primary function of a cell membrane?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
Suppose that you fuse a mouse cell and a human cell, and then treats the cell with specific antibodies covalently linked to fluorescent dyes (antibodies linked to mouse proteins are green; antibodies linked to human proteins are red). What will the cell look like immediately after labelling?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
Suppose that you are comparing the outside and inside halves of a cell membrane's phospholipid bilayer. Which of the following describes the composition of the lipids on the two surfaces?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
Cells must constantly bring in certain molecules and ions while keeping others out. What part of the cell accomplishes this function?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
How are the membranes of animal cells in winter able to remain fluid when the weather becomes extremely cold?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
When referring to membrane glycolipids and glycoproteins, what does the prefix "glyco-" indicate?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
Patients with cystic fibrosis are very susceptible to bacterial infections. Which of the following best describes why this is the case?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
How do insects alter membrane fluidity?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
arrow
Suppose that you fuse a mouse cell and a human cell, and then treat the cell with specific antibodies covalently linked to fluorescent dyes (antibodies linked to mouse proteins are green; antibodies linked to human proteins are red). Forty minutes later, you look at the fused cell. Which of the following will you observe?
Multiple Choice
Answer:
Tags
Choose question tag
close menu
Showing 1 - 20 of 81