Topic 1 - Prokaryotic Cell

Question 1

Structure

Answer 1

Membrane around it outside

No membrane around the nucleus

Genetic material floats around cell

Most often unicellular organisms e.g. bacteria

Question 2

Prokaryote

Answer 2

Single cell organism that locks and membrane around nucleus

Question 3

How many subunits

Answer 3

70 subunits of ribosomes

Question 4

Cell wall

Answer 4

Physical barrier excludes substances and protects against mechanical damage and osmotic lysis

Question 5

Capsule

Answer 5

Protects bacteria from other cells and helps groups of bacteria to stick together for further protection

Question 6

Cell-surface membrane

Answer 6

Acts as the differentially permeable layer which controls the entry and exit of chemicals

Question 7

Circular DNA

Answer 7

possesses the genetic information for the replication of bacteria cells

Question 8

Plasmid

Answer 8

Possesses genes that may aid the survival of bacteria in adverse conditions e.g. produce enzymes that break down antibiotics