Cell Structure

Question 1

Give the name for a cell with and without a nucleus

Answer 1

With - Eukaryotic

Without - Prokaryotic

Question 2

Where are ribosomes made?

Answer 2

Nucleolus

Question 3

Give the names of the central area of mitochondria and the projections into it

Answer 3

Matrix/Cristae

Question 4

Give the names of the central area of chloroplasts, the membranes within it and the stacks of membranes

Answer 4

Stroma/Lamellae/Grana

Question 5

What are the 2 types of ribosomes?

Answer 5

Eukaryotic 80s

Prokaryotic 70s

Question 6

What are microvilli?

Answer 6

Folds in the membrane (of epithelial cells on the villi)

Question 7

What are bacterial cell walls made from?

Answer 7

Murein/peptidoglycan

Question 8

Which type of microscope gives the highest resolution and why?

Answer 8

Electron as shorter wavelength than light

Question 9

Give the equation to work out magnification

Answer 9

Mag = image/actual

Question 10

How many mm in a m, µm in a mm, nm in a µm, µm in a m?

Answer 10

1000, 1000, 1000, 1,000,000

Question 11

How are the organelles of a cell separated after homogenisation

Answer 11

Centrifuged at increasing speeds

Question 12

What is the name of the solid part at the end of tube and the liquid above?

Answer 12

Pellet/Supernatant

Question 13

Give the order of organelle separation including chloroplasts

Answer 13

Nuclei, chloroplasts, mitochondria, lysosomes, endoplasmic reticulum, ribosomes

Question 14

Why is the liquid kept ice-cold?

Answer 14

Prevent enzymes from lysosomes damaging organelles

Question 15

Why is the liquid isotonic?

Answer 15

Prevent osmosis damaging organelles

Question 16

What is the name for damage caused to the specimen in the process of making microscope slides?

Answer 16

Artefacts