PAX PAX Biology

Question 1

Which organelle is known as the 'powerhouse of the cell'?

Accepted Answer

Mitochondria

Answer

Mitochondria produce ATP through cellular respiration, providing the cell with energy.

Question 2

What is the function of red blood cells (erythrocytes)?

Accepted Answer

Transport oxygen

Answer

Red blood cells contain hemoglobin, which binds oxygen and transports it throughout the body.

Question 3

Which type of cell division produces gametes (sex cells)?

Accepted Answer

Meiosis

Answer

Meiosis is the specialized cell division that produces haploid gametes (sperm and eggs) with half the normal chromosome number.

Question 4

What is the role of DNA in a cell?

Accepted Answer

Store genetic information

Answer

DNA stores the genetic blueprint that directs the synthesis of proteins and controls cell functions.

Question 5

Which of the following is NOT a function of the liver?

Accepted Answer

Pumping blood

Answer

Pumping blood is the function of the heart; the liver detoxifies, produces bile, and stores glycogen.

PAX Exam Practice Test