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Flashcards in Cells Deck (14):
1

What is he function if the Golgi apparatus

Processes and packages new lipids and proteins
Also makes lysosomes

2

What is the function of the Golgi vesicles

Stores lipids and proteins made by the Golgi apparatus and transports them out of the cell via the cell membrane

3

What is the function of mitochondria

The site of aerobic respiration
Produces ATP

4

What is the function of lysosomes

Contains digestive enzymes called lysozymes which digest invading cells or break down worn out cell components

5

What is the function of ribosomes

The site where proteins are made

6

What is the function of the rough endoplasmic reticulum

Folds and processes proteins that have been made by the ribosomes

7

What is the function of the smooth endoplasmic reticulum

Synthesises and processes lipids

8

What are the three steps of cell fractionation

1. Homogenisation
2. Filtration
3. Ultracentrifugation

9

What is homogenisation

Breaking up the cells

10

Name two ways homogenisation can be done

Vibrating the cells
Breaking them up in a blender

11

Why must the solution be ice cold in cell fractionation?

To reduce activity of the enzymes that break down organelles

12

Why must the solution be isotonic in cell fractionation?

To prevent damage to the organelles through osmosis

13

Why must a buffer solution be added in cell fractionation?

To maintain the pH

14

What is the function of the nucleus

Controls cells activities.
The pores allow substances (like RNA) to move between the nucleus and cytoplasm