Which of the following favors osmosis?
Diffusion gradient
Temperature
Light
Gravity
How do the cells lining the small intestine take up glucose?
By active transport
By transpiration
By respiration
By endocytosis
Which change would NOT speed up diffusion in an animal cell?
Make the cell membrane thinner
Make the cell rounder
Make the cell membrane thicker
Presence of an enzyme
The tiny projections on the surface of the cells of kidney.
Microvilli
Microvesicles
Microcells
Nephrones
Which of the following is/are true about Visking dialysis tubing?
a) It is made from celluloseb) It is partially permeablec) It is used in kidney dialysis machines
a
b
a & b
a, b & c
Which of the following has the highest water potential?
Acidic water
Pure water
Alkaline water
All of the above
How does paramecium feed?
By exocytosis
By osmosis
By diffusion
The presence of microvilli in the cells increase the rate of absorption. Why?
Surface area is increased
Temperature is altered
Thickness is less
