ATI TEAS Online Prac ce Exam A-TEAS: Science 2026-2027
1. Which of the following is a characteris c of the human organism?
A. Autotrophic with a genome stored in DNA
B. Heterotrophic with a genome stored in DNA
C. Autotrophic with a genome stored in DNA
D.Heterotrophic with a genome stored in RNA - CORRECT ANSWER B.Heterotrophic with
a genome stored in DNA
2. Humans consume rather than manufacture nutrient molecules (heterotrophic), and human
genes are encoded in DNA
Which of the following cell types is responsible for the produc on of soluble an bodies?
A. Cytotoxic T-Cell
B. macrophage Cell
C. Helper T-cell
D. B-Cell - CORRECT ANSWER D. B-cell
The produc on of an bodies by B-cells is part of the humoral response to an gens.
3. Cytotoxic T-cells destroy pathogens and infected cells.
Macropahges ingest and digest both non-self and dead cells.
Helper T-clls help cytotoxic T-cells and other immune cells.
A person is suddenly frightened. Which of the following reac ons occurs next?
A. liver cells absorb glucose from the blood stream.
B. Blood vessel supplying skeletal muscles constrict.
, C. Blood Vessels supplying the intes nes dilate.
D. Liver cells release glucose into the blood stream. - CORRECT ANSWER D. Liver cells
release glucose into the blood stream.
Epinephrine causes liver cells to break down glycogen, which causes an increase in sugar in the
blood stream.
4. Unlike skeletal muscle, cardiac muscle is highly resistant to lactate-mediated fa gue because
cardiac muscle:
A. uses aerobic respira on in mitochondria for energy
B. operates with electrical energy supplied by the sinoatrial (SA) node
C. primarily metabolizes glucose using the fermenta on pathway
D. does not need oxygen for the produc on of energy - CORRECT ANSWER A. uses
aerobic respira on in mitochondria for energy
Aerobic respira on (oxida ve respira on) is almost exclusively used by the heart. The
byproducts of this type of respira on are water and carbon dioxide, not lactate.
5. The SA node, also known as the pacemaker, produces electrical impulses for heart
contrac on.
The lactose-producing fermenta on pathway operates during oxygen depriva on in the skeletal
muscle.
The heart is highly sensi ve to oxygen depriva on, and requires a steady oxygen supply for ATP
produc on by oxida ve phosphoryla on during aerobic respira on.
Ca+H2SO4
Which of the following statements correctly describes the product of the reac on above?
A. Calcium sulfate
1. Which of the following is a characteris c of the human organism?
A. Autotrophic with a genome stored in DNA
B. Heterotrophic with a genome stored in DNA
C. Autotrophic with a genome stored in DNA
D.Heterotrophic with a genome stored in RNA - CORRECT ANSWER B.Heterotrophic with
a genome stored in DNA
2. Humans consume rather than manufacture nutrient molecules (heterotrophic), and human
genes are encoded in DNA
Which of the following cell types is responsible for the produc on of soluble an bodies?
A. Cytotoxic T-Cell
B. macrophage Cell
C. Helper T-cell
D. B-Cell - CORRECT ANSWER D. B-cell
The produc on of an bodies by B-cells is part of the humoral response to an gens.
3. Cytotoxic T-cells destroy pathogens and infected cells.
Macropahges ingest and digest both non-self and dead cells.
Helper T-clls help cytotoxic T-cells and other immune cells.
A person is suddenly frightened. Which of the following reac ons occurs next?
A. liver cells absorb glucose from the blood stream.
B. Blood vessel supplying skeletal muscles constrict.
, C. Blood Vessels supplying the intes nes dilate.
D. Liver cells release glucose into the blood stream. - CORRECT ANSWER D. Liver cells
release glucose into the blood stream.
Epinephrine causes liver cells to break down glycogen, which causes an increase in sugar in the
blood stream.
4. Unlike skeletal muscle, cardiac muscle is highly resistant to lactate-mediated fa gue because
cardiac muscle:
A. uses aerobic respira on in mitochondria for energy
B. operates with electrical energy supplied by the sinoatrial (SA) node
C. primarily metabolizes glucose using the fermenta on pathway
D. does not need oxygen for the produc on of energy - CORRECT ANSWER A. uses
aerobic respira on in mitochondria for energy
Aerobic respira on (oxida ve respira on) is almost exclusively used by the heart. The
byproducts of this type of respira on are water and carbon dioxide, not lactate.
5. The SA node, also known as the pacemaker, produces electrical impulses for heart
contrac on.
The lactose-producing fermenta on pathway operates during oxygen depriva on in the skeletal
muscle.
The heart is highly sensi ve to oxygen depriva on, and requires a steady oxygen supply for ATP
produc on by oxida ve phosphoryla on during aerobic respira on.
Ca+H2SO4
Which of the following statements correctly describes the product of the reac on above?
A. Calcium sulfate
