The Plasma Membrane (Shortened) Flashcards


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1
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What is the name of the molecule that is considered the building block of the Plasma Membrane?

  1. Peripheral Protein
  2. Phospholipid
  3. Integral Protein
  4. Cholesterol
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B.

Phospholipid

2

__________ molecules are charged molecules because electrons are shared __________ between the atoms bonded together in that molecule.

A. Nonpolar, Unequally

B. Polar, Unequally

C. Nonpolar, Equally

D. Polar, Equally

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B.

Polar molecules are charged molecules because electrons are shared unequally between the atoms bonded together in that molecule.

3

__________ molecules are neutral molecules because electrons are shared __________ between the atoms bonded together in that molecule.

A. Nonpolar, Unequally

B. Polar, Unequally

C. Nonpolar, Equally

D. Polar, Equally

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C.

Nonpolar molecules are neutral molecules because electrons are shared equally between the atoms bonded together in that molecule.

4

Water is a ___________ molecule.

A. Polar

B. Nonpolar

A.

Water is a Polar molecule.

5

A molecule that is Hydrophobic is __________.

A. Polar

B. Nonpolar

B.

A molecule that is Hydrophobic is Nonpolar.

6

A molecule that is Hydrophilic is __________.

A. Polar

B. Nonpolar

A.

A molecule that is Hydrophilic is Polar.

7
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The Plasma Membrane is made up of many phospholipid molecules. Each Phospholipid molecule is composed of a Polar head and a Nonpolar tail. Based this, which of the following statements are true?

  1. Part A is Hydrophilic and Part B is Hydrophobic
  2. Part A is Hydrophobic and Part B is Hydrophilic
  3. Both A and B are Hydrophobic
  4. Both A and B are Hydrophilic
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A.

Part A is Hydrophilic and Part B is Hydrophobic

8

What are the 3 main functions of the Plasma Membrane?

  1. Protection
  2. Transportation
  3. Communication

9

The Plasma Membrane keeps needed materials inside of the cell and keeps harmful materials outside the cell. This describes which function of the Membrane?

  1. Transportation
  2. Communication
  3. Protection

C.

Protection

10

The Plasma Membrane is selectively permeable. It controls the movement of molecules traveling into and out of the cell. This describes which function of the Membrane?

  1. Transportation
  2. Communication
  3. Protection
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A.

Transportation

11

The Plasma Membrane has proteins and carbohydrates that sit on the outer surface that allows for cells to signal information to one another. This describes which function of the Membrane?

  1. Transportation
  2. Communication
  3. Protection
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B.

Communication

12
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Which Letter is pointing to a Glycoprotein?

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C

13
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Which Letter is pointing to a Phospholipid?

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F

14
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Which Letter is pointing to a Integral Protein?

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B

15
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Which Letter is pointing to the Hydrophobic Tail of a Phospholipid?

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E

16
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Which Letter is pointing to the Hydrophilic Head of a Phospholipid

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D

17
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Which Letter is pointing to a Peripheral Protein?

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G

18
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Which Letter is pointing to the Carbohydrate of a Glycoprotein?

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A

19
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Which Letter is pointing to a Cholesterol?

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H

20

Which part of the Plasma Membrane is this?

Definition: Proteins that form transport channels through the membrane. Function: Helps transport molecules in and out of cell.

  1. Peripheral Proteins
  2. Glycoproteins
  3. Integral Proteins
  4. Cholesterol
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C.

Integral Proteins

21

Which part of the Plasma Membrane is this?

Definition: Proteins that sit on the inner and outer surface of the membrane. Function: Helps with cell communication.

  1. Cholesterol
  2. Glycoproteins
  3. Integral Proteins
  4. Peripheral Proteins
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D.

Peripheral Proteins

22

Which part of the Plasma Membrane is this?

Definition: Lipids that sit between the hydrophobic tails of phospholipids in the cell membrane. Function: Regulates the fluidity/flexibility and structure of the membrane.

  1. Glycoproteins
  2. Cholesterol
  3. Integral Proteins
  4. Peripheral Proteins
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B.

Cholesterol

23

Which part of the Plasma Membrane is this?

Definition: Carbohydrates linked to peripheral proteins on the outer surface of the cell membrane. Function: Helps with cell recognition and cell communication.

  1. Peripheral Proteins
  2. Glycoproteins
  3. Integral Proteins
  4. Cholesterol
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B.

Glycoproteins

24
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How many Peripheral Proteins are in this membrane?

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4

25
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True or False:

A Glycoprotein is just a peripheral protein with a carbohydrate attached to it.

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True