unit 2 paper 2

Question 1

Function of Lysosome, golgi apparatus, free ribosomes, plasma membranes, rough er

Answer 1

Lysosomes
- Releases digestive enzymes to break down food
Golgi apparatus
- Modifies and packages proteins into secretory vesicles
Free ribosomes
- Protein synthesis
Plasma membrane
- Controls what enters and exits cell
Rough er
- Synthesizes and transports proteins

Question 2

Cell theory?

Answer 2

1. All organisms are made of one cell or more
2. All cells come from pre existing cells
3. Cells are the simplest unit of life

Question 3

Mode of transport if water moves into cell?

Answer 3

Osmosis

Question 4

Mode of transport if sodium ions move into cell?

Answer 4

Active transport

Question 5

Facilitated diffusion?

Answer 5

Passive transport that requires two proteins; Carrier and channel
- Has gates that open and close for water

Question 6

Name of structures formed with/in a cell by endocytosis?

Answer 6

Vesicles

Question 7

Explain how materials are transported with/in a cell between rough er and golgi apparatus?

Answer 7

Rough endoplasmic reticulum Synthesizes proteins and then are transported by exocytosis into the golgi apparatus so they can be modified and packaged into secretory vesicles