AP Bio Chp 5: Membrane Transport and Cell Signaling

AP Bio Chp 5: Membrane Transport and Cell Signaling

9th Grade - University

6 Qs

quiz-placeholder

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AP Bio Chp 5: Membrane Transport and Cell Signaling

AP Bio Chp 5: Membrane Transport and Cell Signaling

Assessment

Quiz

Biology

9th Grade - University

Medium

Created by

Mr. Queen

Used 4+ times

FREE Resource

6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In what ways do the membranes of a eukaryotic cell vary?

Phospholipids are found only in certain membranes

Certain proteins are unique to each type of membrane

Only certain membranes of the cell are selectively permeable

Only certain membranes are constructed from amphipathic molecules

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following factors would tend to increase membrane fluidity?

A greater proportion of unsaturated phospholipids

A greater proportion of saturated phospholipids

A lower temperature

A relatively high protein content in the membrane

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phosphorylation cascades involving a series of protein kinases are useful for cellular transduction because

They are species specific

They always lead to the same cellular response

They amplify the original signal many fold

They counter the harmful effect of phosphatases

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Lipid-soluble signaling molecules, such as aldosterone, cross the membranes of all cells but affect only target cells because:

Only target cells retain the appropriate DNA segments

Intracellular receptors are present only in target cells

Only target cells have enzymes that break down aldosterone

Only in target cells is aldosterone able to initiate the phosphorylation cascade that turns genes on

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following processes includes all the others?

Osmosis

Diffusion of a solute across a membrane

Passive transport

Transport of an ion down its electrochemical gradient

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Under what conditions will a substance be likely to enter a cell through diffusion?

When a molecule of the substance is very large

When the substance is a particle of food

When the concentration of the substance is greater outside the cell than inside

When the concentration of the substance is greater inside the cell than outside