transport of cells -os,diff,actTr

Question 1

real size of image equation

Answer 1

image size/magnification

Question 2

first antibiotic created

Answer 2

penicillin

Question 3

why can antibiotics not be used to treat diseases caused by viruses

Answer 3

viruses live (and reproduce) inside cells

Question 4

3 molecules that move in and out of cells through diffusion

Answer 4

oxygen, carbon dioxide, urea

Question 5

what is urea

Answer 5

a waste product produced inside of cells

Question 6

3 factors affecting diffusion

Answer 6

temperature
concentration gradient
surface area

higher the temp - greater rate of diffusion
greater the conc grad - faster diffusion
larger the SA- greater rate of diffusion

Question 7

osmosis if we place an animal cell in a very concentrated solution

Answer 7

water will move out of the cell by osmosis and cell will shrink

Question 8

how would you describe osmosis in terms of cells

Answer 8

expand - turgid
shrink - flaccid

Question 9

definition of active transport

Answer 9

the movement of particles from an area of low concentration to an area of high concentration - against the concentration gradient

which requires energy from respiration

Question 10

2 differences between diffusion and active transport

Answer 10

diffusion - particles move down conc gradient

AT- particles move against conc gradient

diff- doesn’t require energy from respiration

AT - requires energy from respiration