Lecture 12

Question 1

Vacuole structure:

Answer 1

bounded by a single membrane called the tonoplast

Question 2

Where are vacuoles produced:

Answer 2

The ER & Golgi Apparatus

Question 3

What are the 3 functions of vacuoles?

Answer 3

Storage
Breakdown of organelles & macromolecules
Regulation of turgor

Question 4

What do vacuoles store?

Answer 4

Primary metabolites

Secondary metabolites

Question 5

What are the secondary metabolites?

Answer 5

tannis, pigments & alkaloids ( non growth associated)

Question 6

What are the primary metabolites?

Answer 6

growth associated -sugars, organic acids, lipids, proteins etc

Question 7

What are the four types of plastids?

Answer 7

Chloroplasts
Chromoplasts
Leucoplasts
Proplastids

Question 8

What is the function of chloroplasts?

Answer 8

Photosynthesis

Question 9

What is the function of chromoplasts?

Answer 9

Synthesis & storage of coloured pigments

Question 10

What is the function of leucoplasts?

Answer 10

Storage os assimilates e.g starch

Question 11

What is the function of proplastids?

Answer 11

precursors to the other plastids

Question 12

Chloroplasts have 3 membranes which are?

Answer 12

Inner membrane
Outer membrane
Thylakoids

Question 13

What do the 3 membranes do?

Answer 13

Divides the chloroplast into 3 compartments

Question 14

Why does the chloroplast have 3 compartments? Its importance?

Answer 14

Isolates different aspects of photosynthesis

Question 15

What are the 3 compartments in a chloroplast?

Answer 15

Inter membrane space, storm & thylakoid space

Question 16

What are thylakoids?

Answer 16

Stacked like poker chips - each stack is called a granum