Which substance moves out of respiring cells?
Oxygen
Carbon dioxide
Glucose
Nitrogen
Through which of the following process does white blood cells engulf bacteria ?
Exoocytosis
Phagocytosis
Osmosis
Diffusion
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
All of the above
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
Which of the following has the highest water potential?
Pure water
Acidic water
Alkaline water
If the vacuoles of a cell is filled with water, which of the following will happen?
The cells will become turgid
The cells will become flaccid
The cell will shrink
The plant will wilt
How are enzymes released out of the cell of glands?
Endocytosis
Exocytosis
Which of the following is a measure of whether a solution is likely to lose or gain water molecules from another solution?
Water potential
Solution potential
Transportation potential
Diffusion gradient
The liquid outside the cell which has the same concentration as that of the cell.
Tissue fluid
Cytoplasm
Cell fluid
