How are enzymes released out of the cell of glands?
Endocytosis
Phagocytosis
Exocytosis
All of the above
What is diffusion?
The movement of particles from low concentration to high concentration
The movement of particles from high concentration to low concentration
Active movement of particles, requiring energy from respiration
The presence of microvilli in the cells increase the rate of absorption. Why?
Surface area is increased
Temperature is altered
Thickness is less
Which substance moves out of respiring cells?
Oxygen
Carbon dioxide
Glucose
Nitrogen
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
The tiny projections on the surface of the cells of kidney.
Microvilli
Microvesicles
Microcells
Nephrones
If the vacuoles in the cell lose water for any reason, which of the following will happen?
The cells will become turgid
The cells will become flaccid
The cell will burst
The cells will become rigid
If the vacuoles of a cell is filled with water, which of the following will happen?
The cell will shrink
The plant will wilt
If the cells are surrounded by a solution which is more concentrated than the cytoplasm, which of the following will happen?
The cell will remain the same
The cell will become permeable
Which of the following favors osmosis?
Diffusion gradient
Temperature
Light
Gravity
