2.1 cells

Question 1

Is a large surface area to volume ratio good or bad? Why?

Answer 1

Good. A large surface area allows for quicker exchange of materials.

Question 2

prokaryotes don’t have:

Answer 2

membrane bound organelles.

Question 3

Both prokaryotes and eukaryotes have

Answer 3

dna, cytoplasm, cell membrane, ribosomes.

Question 4

volume of sphere formula

Answer 4

v=4/3pir^3

Question 5

Does small intestine have high or low volume to sa ratio?

Answer 5

large ratio to increase absorption of nutrients.

Question 6

what are villi and microvilli

Answer 6

finger like projections on small intestine wall to increase surface area

Question 7

golgi apparatus produces

Answer 7

lysosomes

Question 8

lysosomes have what inside them

Answer 8

hydrolytic enzymes

Question 9

endosymbiont theory

Answer 9

mitochondria and chloroplasts were once independent organisms. They both have dna, reproduce, have ribosomes, double membrane, and are large.

Question 10

plant cell wall is made of

Answer 10

cellulose

Question 11

gap junctions

Answer 11

channels through cell membrane that allows ions, sugars and small molecules through.