Mitochondria and Chloroplast

Question 1

what are the key structures of the mitochondria?

Answer 1

1. double membrane (outer and inner)
2. matrix
3. a loop of mitochondrial DNA
4. mitochondrial ribosomes
   5.cristae

Question 2

what is the function of mitochondria?

Answer 2

1. where aerobic respiration occurs so it also provides energy to the cell
2. increases the surface area for enzymes needed for oxidative phosphorylation

Question 3

what is the function of the mitochondria’s double cell membrane?

Answer 3

1. determines which molecules are allowed in/out of the organelle
2. internal membrane is covered with enzymes/proteins needed for respiration

Question 4

what is the cristae and it’s function?

Answer 4

it’s folds in the internal membrane and it increases the surface area of the internal membrane for respiration

Question 5

what is the matrix and it’s function?

Answer 5

it’s the central part of the mitochondria and it contains enzymes needed for respiration

Question 6

what is the function the mitochondria’s DNA?

Answer 6

it allows the mitochondria to produce some of it’s own proteins

Question 7

what are the key structures of the chloroplast?

Answer 7

1. double membrane
   2.thylakoids
2. granum
3. lamellae
4. stoma
5. starch granules
6. circular strand of DNA
7. ribosome

Question 8

what is the function of the mitochondria’s double cell membrane?

Answer 8

controls what molecules enters and leaves the organelle

Question 9

what are thylakoids and their function?

Answer 9

they are flattened discs that:
1. are the site of the light dependent reactions needed for photosynthesis
2. contains the enzymes needed for the light dependent reactions

Question 10

what are granum and their function?

Answer 10

it’s a stack of thylakoids and they allow light to be absorbed more efficiently

Question 11

what are lamellae and their function?

Answer 11

they are flattened membranes that connect the granum and they:
1. play a part in the light dependent reactions
2.allow substances to pass between grana

Question 12

what are stroma and their function?

Answer 12

a fluid material that:
1. are the site of the light dependent reactions needed for photosynthesis
2. contains the enzymes needed for the light dependent reactions

Question 13

what are DNA and ribosome function in chloroplast?

Answer 13

involved in the production of proteins needed for photosynthesis

Question 14

what is the function of chloroplast?

Answer 14

it contains chlorophyll which transforms light energy to chemical energy through photosynthesis