Unit 1 Exam-Lecture

Question 1

Golgi Apperatus

Answer 1

> Modifies and packages new lipids and proteins.
Has vesicles that carry new products through the plasma membrane to be secreted.

Question 2

Plasma Membrane

Answer 2

> Allows transport inside and outside of the cell.
Has surface receptors that respond to hormones.

Question 3

Nucleus

Answer 3

Contains DNA

Question 4

Smooth ER

Answer 4

Lipid Synthesis

Question 5

Mitochondria

Answer 5

Releases energy from respiration

Question 6

Ribosome

Answer 6

Protein synthesis

Question 7

Lysosome

Answer 7

Digests cell parts

Question 8

Chloroplasts

Answer 8

Absorbs light to carry out photosynthesis to make glucose

Question 9

Rough ER

Answer 9

Processes and folds the proteins and provides a surface for protein synthesis to take place

Question 10

Diffusion

Answer 10

Movement of molecules from an area of high concentration to an area of low concentration. No energy required.

Question 11

Active Transport

Answer 11

> Transport that requires energy
Able to transport against concentration gradients

Question 12

Primary Active Transport

Answer 12

Direct use of energy to transport against concentration gradient

Question 13

Secondary Active Transport

Answer 13

Uses a pre-existing gradient to drive active transport.

Question 14

Uniporter

Answer 14

A single solute moves in one direction

Question 15

Symporter

Answer 15

Two solutes move in the same direction

Question 16

Antiporter

Answer 16

Two solutes move in opposite directions

Question 17

Factors affecting cell membrane fluidity

Answer 17

Length of fatty tails
Degree of saturation
Amount of sterol

Question 18

Movement of cell membrane proteins

Answer 18

Rotate
Move laterally
Cannot flip!

Question 19

Facilitated Diffusion

Answer 19

Movement down a gradient with aid of transport protein