Prokaryotic cells (power point)

Question 1

What is the function of a flagellum?

Answer 1

Movement

Question 2

What is a prokaryotic cell’s cell wall made of?

Answer 2

Peptidoglycan

Question 3

What is the function of the slime capsule?

Answer 3

It stores waste and protects against drying out.

Question 4

What is a ribosome? ( Prokaryotic)

Answer 4

Site of protein synthesis, approximately 70S- smaller than in eukaryotes (80S).

Question 5

What are pilli for?

Answer 5

For adhering to other cells- hosts or other prokaryotes for plasmid exchange.

Question 6

What is the function of the plasma membrane?

Answer 6

Controls what enters and leaves the cell.

Question 7

What is a plasmid?

Answer 7

Small loop of DNA containing additional genes.

Question 8

What is a DNA loop?

Answer 8

Not linear as not wrapped around histone proteins to form chromosomes.

Question 9

Where do chemical reactions happen in the cell?

Answer 9

In the cytoplasm

Question 10

Where is ATP produced?

Answer 10

Mesosome

Question 11

What don’t prokaryotic cells have?

Answer 11

Mitochondria
Chloroplasts
Nucleus
Chromosomes
Centrioles

Question 12

What size are prokaryotic cells?

Answer 12

5um

Question 13

What size are eukaryotic cells?

Answer 13

25um

Question 14

What structures are outside the cell membrane of a prokaryotic cell?

Answer 14

All cell walls made of peptidoglycan
Slimy capsules
Often flagella
Pili

Question 15

What structures are outside the cell membrane of a eukaryotic cell?

Answer 15

Plants: cellulose cell wall
Yeast/ fungi- chitin
No capsules
Undulipodia with different structure to flagella

Question 16

Describe the DNA of prokaryotic cells

Answer 16

Circular/ looped DNA
No protein on DNA
Not in nucleus
Plasmids

Question 17

Describe the DNA of eukaryotic cells

Answer 17

Linear DNA/ chromosomes
Proteins on DNA
No plasmids
Mitochondria and Chloroplasts have looped DNA