TEAS Science Practice Test 2

Question 1

Which of the following best describes the function of the mitochondria in a cell?

Accepted Answer

Cellular energy production through ATP generation

Answer

Protein synthesis and folding

Answer

Storage of genetic material and cell division

Answer

Detoxification of harmful substances

Question 2

A patient's blood test shows a pH of 7.30. Which of the following conditions does this indicate?

Accepted Answer

Acidosis

Answer

Alkalosis

Answer

Normal blood pH

Answer

Neutral pH

Question 3

During inhalation, what happens to the diaphragm and thoracic cavity?

Accepted Answer

The diaphragm contracts and flattens while the thoracic cavity expands

Answer

The diaphragm relaxes and the thoracic cavity decreases in volume

Answer

The diaphragm contracts and rises while the thoracic cavity decreases

Answer

The diaphragm relaxes and the thoracic cavity remains the same size

Question 4

Which type of chemical bond involves the sharing of electron pairs between atoms?

Accepted Answer

Covalent bond

Answer

Ionic bond

Answer

Hydrogen bond

Answer

Metallic bond

Question 5

The sympathetic nervous system is activated during a 'fight or flight' response. Which of the following is a physiological effect of sympathetic activation?

Accepted Answer

Dilation of pupils and increased heart rate

Answer

Decreased heart rate and blood pressure

Answer

Constriction of bronchioles in the lungs

Answer

Increased peristalsis in the digestive tract

Question 6

In an experiment, a scientist tests whether a new fertilizer increases tomato plant growth. The plants given fertilizer are the experimental group. What is the control group?

Accepted Answer

Plants grown under identical conditions but without the fertilizer

Answer

Plants given twice the amount of fertilizer

Answer

Plants grown in a different location

Answer

Plants of a different species grown with the fertilizer