Cellular level of organisation

Question 1

What is a prokaryotic cell?

Answer 1

A primitive cell which has its genetic material free in the cytoplasm

Question 2

What is a Eukaryotic cell

Answer 2

a cell which has its genetic material encased in a nucleus and contains membrane bound organelles

Question 3

What is tonicity?

Answer 3

it refers to comparing the solute concentration

Question 4

What three terms are used to compare tonicity and what do they refer to?

Answer 4

Isotonic = solutes equal concentration
Hypertonic = More concentrated solution
Hypotonic = less concentrated solution

Question 5

What essential functions do all cells perform for their own survival? (6)

Answer 5

1. Maintain relatively constant internal environment
2. Sense and respond to change in surrounding environment
3. obtain raw material from surrounding environment
4. Use these raw materials to provide energy for cellular activity
5. Excrete waste products
6. Grow and reproduce to make new cells