HESI A2 – Biology

HESI A2 – Biology [Aug 2026]

Question 1 of 30

What part of a light microscope is used to hold the slide in place?

A Stage clips. ✅

B Rack stop.

C Base.

D Arm.

Question 2 of 30

Which cellular appendage enables cells to move through their environments?

A Flagellum. ✅

B Receptor.

C Transport protein.

D Cell membrane.

Question 3 of 30

Aerobic respiration occurs in the presence of what necessary molecule?

A Water.

B Lactic acid.

C Oxygen. ✅

D Carbon dioxide.

Question 4 of 30

What part of a plant cell acts as a barrier and provides support to the cell?

A Cell membrane.

B Chloroplast.

C Xylem.

D Cell wall. ✅

Question 5 of 30

Which is an example of the correct organizational hierarchy for a wolf?

A Circulatory system, DNA, muscle tissue, blood cell, heart, wolf.

B DNA, blood cell, muscle tissue, heart, circulatory system, wolf. ✅

C Blood cell, organ, circulatory system, muscle tissue, DNA, wolf.

D Muscle tissue, blood cell, DNA, organ, circulatory system, wolf.

Question 15 of 30

What type of bond in the base of the DNA nucleotides holds the strands together?

A Hydrogen. ✅

B Potassium bromide.

C Sodium chloride.

D Copper.

Question 30 of 30

A hypertonic solution has what concentration of solutes compared to the cell?

A Higher. ✅

B Same.

C Negative.

D Lower…………………………………purchase this entire exam at $50 only