cell structure

Question 1

What are the two different types of cell?

Answer 1

Prokaryote and Eukaryote

Question 2

What is an example of a prokaryotic cell?

Answer 2

Bacterial cell

Question 3

What are two structures bacterial cells don’t contain?

Answer 3

A nucleus and membrane-bound organelles in the cytoplasm

Question 4

What will a typical prokaryotic cell always contain?

Answer 4

A cell wall, a cell surface membrane, a circular DNA in the cytoplasm, ribosomes and the cytoplasm

Question 5

What are the structures that may be present in a prokaryotic cell?

Answer 5

A capsule, one or more plasmids, one or more flagella

Question 6

What is the cell wall in a prokaryote made of?

Answer 6

Murein

Question 7

What is the DNA in a prokaryote not associated with?

Answer 7

Proteins

Question 8

What is the size of the ribosomes in a prokaryotic cell?

Answer 8

70S ribosome

Question 9

What do eukaryotes form?

Answer 9

The vast majority of living organisms

Question 10

What are eukaryotes mainly characterised by?

Answer 10

The presence of a nucleus and cytoplasm containing many cell organelles

Question 11

What are the structures in a eukaryotic cell?

Answer 11

Golgi vesicle, ribosomes, Golgi apparatus, chromatin, smooth endoplasmic reticulum, mitochondrion, cell surface membrane, cytoplasm, lysosome, nuclear pore, nuclear envelope, nucleolus, rough endoplasmic reticulum, centrioles

Question 12

What are the structures that are sometimes in a eukaryotic cell?

Answer 12

Cell wall, chloroplasts, vacuole

Question 13

What is the cell wall of a plant cell made of?

Answer 13

Cellulose

Question 14

What is the size of the ribosomes in a eukaryotic cell?

Answer 14

80S ribosomes

Question 15

What is the rough endoplasmic reticulum made of?

Answer 15

Ribosomes with smooth endoplasmic reticulum

Question 16

Is the DNA in a eukaryotic cell circular or linear?

Answer 16

Linear

Question 17

Which type of cell reproduces by binary fission?

Answer 17

Prokaryotic cells

Question 18

Is binary fission sexual or asexual?

Answer 18

Asexual

Question 19

What does this mean?

Answer 19

One cell divides into two daughter cells

Question 20

What are the stages of binary fission?

Answer 20

1. Cell elongates and DNA is replicated
2. Cell wall and plasma membrane begin to divide
3. Cross-wall forms completely around the divided DNA
4. Cells separate

Question 21

What is the time taken for the bacterial population to double called?

Answer 21

Generation time

Question 22

What is the equation to calculate the population of a bacterial generation?

Answer 22

Population in the n th generation = 2 n