2.1 Week 2 Rare Diseases

Question 1

lysosomes

Answer 1

Small spherical organelles with a single membrane. Lysosomes contain degradative enzymes and break down old organelles and also ingested material. They have a low internal pH.

Question 2

lysosomes 2

Answer 2

Tiny cellular “recycling centers” packed with enzymes that digest worn-out parts and invading microbes, keeping your cells clean and functional.

Question 3

The genetic information in the form of DNA is located in the

Answer 3

Nucleus

Question 4

The cell is surrounded by the
XXX
Correct, which is composed mostly of lipids and forms a barrier that only allows some molecules direct access to the inside of the cell.

Answer 4

cell membrane

Question 5

Protein synthesis takes place in the

Answer 5

ribosomes

Question 6

which can either be present free in the XXXX

Answer 6

cytosol

Question 7

or can be attached to the

Answer 7

ER

Question 8

Degradation and recycling of e.g. old cellular components takes place in the XXX

Answer 8

lysosome

Question 9

Within the cell, the XXX
provides a structure along which organelles can be transported.

Answer 9

cytoskeleton

Question 10

A cell produces energy in the form of ATP in a process called cellular respiration, which takes place within the XXX

Answer 10

mitochondria