Cell Biology

Question 1

What is a eukaryote?

Answer 1

A Eukaryote is a cell that contains its genetic material (DNA) enclosed in a nucleus.

Question 2

Are animal cells prokaryotes or eukaryotes?

Answer 2

Animal cells are eukaryotes

Question 3

Are plant cells prokaryotes or eukaryotes?

Answer 3

Plant cells are eukaryotes

Question 4

Do eukaryotes have a cell wall or a cell membrane or both? (plant and animal)

Answer 4

Eukaryotes: animal cells have a cell membrane, a plant cell has a cell wall and a cell membrane.

Question 5

What are prokaryotes?

Answer 5

Prokaryotes are bacterial cells in which the genetic material (DNA) is not enclosed in a nucleus.

Question 6

What are the differences between prokaryotes and eukaryotes? (2)

Answer 6

The differences between prokaryotes and eukaryotes are:

Eukaryotes have a nucleus whereas prokaryotes do not.
Prokaryotes are much smaller than eukaryotes.

Question 7

What do plant cells have which animal cells don’t? (3)

Answer 7

Plant cells have a cell wall, permanent vacuole, chloroplasts

Question 8

What are the similarities between prokaryotes and eukaryotes? (2)

Answer 8

The similarities between eukaryotes and prokaryotes are:

Eukaryotes and prokaryotes both have a cell membrane
Prokaryotes and eukaryotes both have a cytoplasm.

Question 9

What is the order of magnitude?

Answer 9

The order of magnitude is the approximate size of different objects

1 order of magnitude is 10x
2 order of magnitude is 100x
3 orders of magnitude is 1000x

Question 10

Do animal cells have a cell wall?

Answer 10

Animal cells do not have a cell wall (they have a cell membrane)

Question 11

Do plant cells have a cell wall?

Answer 11

Plant cells have a cell wall (they also have a cell membrane)

Question 12

A fox is around 40cm long. A tick living on the fox is 4mm long. How many orders of magnitude is the fox longer than the tick?

Answer 12

Since the units aren’t the same convert them both into the unit your more comfortable with. 40cm/0.4cm

40/0.4 = 100x
100x is two orders of magnitude

Question 13

What are the functions of the nucleus?

Answer 13

The functions of the nucleus are to enclose the genetic material (DNA) and control the cell.

Question 14

What are the functions of the cytoplasm?

Answer 14

The functions of the cytoplasm are to give the cell its shape, its also where chemical reaction in the cell take place

Question 15

Where do chemical reactions take place in the cell?

Answer 15

The cytoplasm is where the reactions in the cell take place

Question 16

What is the function of the mitochondria?

Answer 16

The function of the mitochondria is to provide energy for the cell

Question 17

What is the function of the ribosomes?

Answer 17

Ribosomes are the sites of protein synthesis (making proteins)

Question 18

What are the functions of the cell membrane?

Answer 18

The functions of the cell membrane are to protect the cell and control what enters and leaves the cell.

Question 19

What is the functions of the cell wall?

Answer 19

The cell wall provides the cell with structure.

Question 20

What is the cell wall made from?

Answer 20

The cell wall is made from cellulose (this strengthens the cell).

Question 21

What fluid can be found within the vacuole?

Answer 21

Cell sap can be found within the vacuole.