Ch. 2 Flashcards Preview

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Flashcards in Ch. 2 Deck (20):
1

Cytoplasm

Cellular contents between the plasma membrane and the nucleus

2

Cytosol

Liquid part of cytoplasm

3

Organelles

Specialized structures with specific functions

4

Nucleus

Control center of cell

5

The plasma membrane contains a mix of?

Phorus, proteins and glycoproteins

6

Glycoprotein

Membrane proteins with carbohydrates attached to the proteins.

7

The basic framework of the plasma membrane is the ________?

Lipid bilayer

8

3 type of lipid molecules are?

Phospholipids, cholesterol and glycolipids

9

Two major types of membrane protein?

Integral protein and peripheral protein

10

Integral protein which extends _____ the lipid bilayer among the fatty acid tails.

Into

11

Ion channels

Contains a pore through which substances can move in and out of cell

12

Transporter

Act as carriers which change shape as they move a substance from one side of the membrane to the other

13

Receptors

Recognize and bind a specific molecule for cellular functions
Ex: insulin

14

Enzymes

Speed reactions inside or outside the membrane

15

Peripheral protein

Are loosely attached to the inner and outer surfaces of the membrane
-they serve as cell identity makers

16

Identity markers

Help cells to recognize cells of its own kind and respond to foreign cells

17

Selective permeability

Plasma membrane allows some substances to move into and out of the cell but restricts the passage of others.

18

The lipid bilayer is permeable to _____ and to lipid-soluble molecules, fat-soluble vitamins, oxygen and ______ ______

1. Water
2. Carbon dioxide

19

The lipid bilayer is NOT permeable to _____, large molecules and uncharged polar molecules such as _____ and ______ _____

1. Ions
2. Glucose
3. Amino acids

20

Plasma membrane

Outer membrane of the cell