PAX PAX Biology 3

Question 1

What is the basic unit of life?

Accepted Answer

Cell

Answer

Tissue

Answer

Organ

Answer

Atom

Question 2

Which macromolecule serves as the primary energy source for the body?

Accepted Answer

Carbohydrates

Answer

Proteins

Answer

Lipids

Answer

Nucleic acids

Question 3

What does the term 'homeostasis' refer to?

Accepted Answer

The body's maintenance of a stable internal environment

Answer

Rapid cell division

Answer

Breakdown of nutrients in the digestive tract

Answer

Formation of new blood cells

Question 4

Which molecule carries genetic information from the nucleus to the ribosome?

Accepted Answer

mRNA

Answer

DNA

Answer

tRNA

Answer

rRNA

Question 5

The human body has how many pairs of chromosomes?

Accepted Answer

23

Answer

21

Answer

22

Answer

46

Question 6

Which organ produces insulin?

Accepted Answer

Pancreas

Answer

Liver

Answer

Kidney

Answer

Adrenal gland