ATI TEAS 7 Science Complete Review Guide 2025 (V2) | Updated Study Material, Practice Questions & Answer Explanations

ATI TEAS 7 Science Complete Review Guide 2025
(V2) | Updated Study Material, Practice Questions
& Answer Explanations
Question 1
Which of the following is the appropriate threshold value for mammalian
neurons?
A) -80 mV
B) -55 mV
C) 0 mV
D) +35 mV

Question 2
In a certain plant, red flowers are dominant over white flowers. A plant
heterozygous for red flowers and a plant with white flowers are crossed.
Which of the following is the expected proportion of phenotypes in the
next generation?
A) 2 red, 2 white
B) 4 red, 0 white
C) 3 red, 1 white
D) 1 red, 3 white

Question 3
Which of the following structures is present in both prokaryotic and

,eukaryotic cells?
A) Endoplasmic reticulum
B) Cell membrane
C) Chloroplast
D) Golgi apparatus

Question 4
Which of the following can lead to a tsunami?
A) Sunspot activity
B) Lightning strikes
C) Flooding
D) Earthquakes

Question 5
Which of the following are used to determine a person's DNA sequence?
A) Genes
B) Blood type
C) Hormones
D) Enzymes

Question 6
Which of the following organic molecules contain both an amine and
carboxyl group?
A) Lipids
B) Chitin

, C) Cellulose
D) Proteins

Question 7
Osteoporosis results from which of the following?
A) A decline in osteoclast activity while osteoblast activity continues at
expected levels
B) An increase in osteocyte activity while osteoblast activity continues at
expected levels
C) A decline in osteoblast activity while osteoclast activity continues at
expected levels
D) An increase in osteocyte activity while osteoclast activity continues at
expected levels

Question 8
Which of the following is released by one type of immune cell to directly
activate another type of immune cell?
A) Lysozymes
B) Perforin
C) Cytokines
D) Granzymes

Question 9
The measurement indicated by the line across the centre of the cell is best
referred to as which of the following?