bio test 2024 pt.3

Question 1

how does cell size affect surface area to volume ratio?

Answer 1

small cells have high surface area to volume ratios, large cells have low surface area to volume ratios.

Question 2

in which phase of the cell cycle does DNA replication occur?

Answer 2

cycle S

Question 3

an enzyme is?

Answer 3

a biological catalyst that speeds up a chemical reaction

Question 4

state two uses of mitosis in the human body

Answer 4

growth and repair

Question 5

what does an animal cell do if placed in water?

Answer 5

swells because water diffuses into the cell.

Question 6

what are the 4 types of dna bases?

Answer 6

adenine (A), cytosine (C), guanine (G), and thymine (T)

Question 7

define hypotonic and hypertonic

Answer 7

hypotonic: A solution that has a lower solute concentration than the cell.

hypertonic: A solution that a higher solute concentration than the cell.

Question 8

what is an endoplasmic reticulum?

Answer 8

endoplasmic reticulum (smooth)
endoplasmic reticulum is a network of membranes inside a cell through which proteins and other molecules move.