TEAS Science: Biology and Life Science 3

Question 1

Which process do plant cells use to convert carbon dioxide and water into glucose using light energy?

Accepted Answer

Photosynthesis

Answer

Photosynthesis converts CO2 and water into glucose using light energy.

Question 2

What is the basic structural and functional unit of all living organisms?

Accepted Answer

Cell

Answer

The cell is the smallest unit capable of carrying out life functions.

Question 3

Which structure controls what enters and exits an animal cell?

Accepted Answer

Cell membrane

Answer

The selectively permeable cell membrane regulates movement in and out of the cell.

Question 4

The movement of water across a semipermeable membrane from low to high solute concentration is called what?

Accepted Answer

Osmosis

Answer

Osmosis is the diffusion of water across a semipermeable membrane.

Question 5

How many chromosomes are typically found in a normal human body (somatic) cell?

Accepted Answer

46

Answer

Human somatic cells normally contain 46 chromosomes in 23 pairs.

TEAS Practice Test