Cell Structure and Function

The diffusion of water across a selectively permeable membrane is called

• endocytosis

• osmosis.

• facilitated diffusion.

• active transport.

Diffusion is the movement of solute molecules from

• an area of low concentration to an area of high concentration.

• an area of high concentration to an area of low concentration.

• an area of equilibrium to an area of high concentration.

• all of the above

The main function of chloroplasts is:

• To control what enters and leaves the cell.

• To break down glucose (food) to release energy for the cell.

• To control all activities of the cell.

• To produce glucose (food) for the cell using the sun's energy.

I am located in the leaves of plants, but NOT the roots. Who am I?

• Lysosomes
• Chloroplasts
• Vacuole
• Mitochondria

When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of ___________.

• osmosis
• equilibrium
• diffusion
• hypertonic

What type of cells are totipotent, and can differentiate into any type of body cell?

• Nerve cells

• Cardiac cells

• blood cells

• stem cells

What is the correct order of organization from smallest to largest?

• tissues-cells-organs-organ systems-organism
• cell-tissue-organs-organ systems-organism
• organism-cells-tissues-organ systems-organism
• tissues-cells-organs-organ sytems-organism

I am the membrane bound sac that transports proteins and other materials throughout the cell.

• vesicle

• vacuole

• ribosome

• endoplasmic reticulum

This organelle eliminates waste. 

• Nucleus
• ER
• Vacuole
• Lysosome

Organisms composed of many cells are called

• Prokaryotic

• Eukaryotic

• Unicellular

• Multicellular