Cell Organelles (A LEVELS)

Question 1

3 Rules of Cell Theory

Answer 1

1. New Cells come from pre-existing cells
2. Cells are the basic unit of life
3. All living things are composed of 1 or more cells

Question 2

Rough & smooth endoplasmic reticulum’s FUNCTIONS

Answer 2

Rough: Synthesise proteins and acts as a transport network

Smooth: Synthesise fats and steroids and acts as a transport network

Question 3

Lysosomes FUNCTION

Question 4

Nuclear envelope FUNCTION

Question 5

Centrioles FUNCTION

Question 6

Nucleolus FUNCTION (not nucleus)

Question 7

Golgi body function

Question 8

Ribosomes function

Question 9

Mitochondrion function

Question 10

Chloroplast function

Question 11

Cell surface membrane function

Question 12

Struc of typical bacteria cell / PROKARYOTIC cell

Answer 12

• Small & unicellular
• has 70S ribosomes
• No nucleus
• *Circular DNA that is found in the cytoplasm in an area called the nucleoid
• No membrane bound organelles
• Has cell wall

Question 13

Types of prokaryotic cells and their differences

Answer 13

1. Gram-positive bacteria
   - More lipopolysaccharide
   Gram stain test:
2. Gram-negative bacteria
   - Less lipopolysaccharide
   Gram stain test: