Q1: Cell Membrane

Question 1

Groups of macromolecules which includes fats and oils.

Answer 1

lipids

Question 2

Macromolecules composed of carbon, hydrogen, and oxygen.

Answer 2

carbohydrates

Question 3

Composed of a hydrophobic tail and a hydrophilic head.

Answer 3

phospholipid

Question 4

Composed of building blocks called amino acids.

Answer 4

protein

Question 5

Which model is used by scientists to describe the organization of phospholipids and proteins.

Answer 5

fluid mosaic model

Question 6

Two types of associate proteins

Answer 6

• integral membrane proteins
• peripheral membrane proteins

Question 7

Proteins that are exterior to and connected to the membrane by interactions with other proteins.

Answer 7

peripheral membrane proteins

Question 8

Proteins that are inserted into the membrane and most pass through the membrane.

Answer 8

integral membrane proteins

Question 9

Portions of these transmembrane proteins are exposed on both sides of the membrane.

Answer 9

integral membrane proteins

Question 10

Proteins that help to give the cell support and shape.

Answer 10

structural proteins

Question 11

Proteins that help cells communicate with their external environment through the use of hormones, neurotransmitters, and other signaling molecules.

Answer 11

cell membrane receptor proteins

Question 12

Proteins that transport molecules across cell membranes through facilitated diffusion.

Answer 12

transport proteins

Question 13

Proteins that have a carbohydrate chain attached to them.

Answer 13

glycoproteins

Question 14

The boundary that separates the living cell from its surroundings and controls traffic into and out of the cell it surrounds.

Answer 14

plasma membrane

Question 15

A mechanism that allows some substances to cross it more easily than others.

Answer 15

selective permeability

Question 16

Properties of the Cell Membrane

Answer 16

• fluidity
• semi-permeability
• rigidity

Question 17

Two main function of the cell membrane are:

Answer 17

• protection
• transport of materials in and out of the cell

Question 18

Transport of molecules in and out of the cell is affected by ____________________ and ____________________.

Answer 18

• concentration gradient
• type of molecules that is to be transported

Question 19

It easily affects the process wherein molecules move passively from regions with higher concentration towards regions with lower concentration.

Answer 19

concentration gradient

Question 20

It is required for when actively moving molecules, from regions with low concentration towards a region with higher concentration.

Answer 20

ATP

Adenosine Triphosphate