Fall Semester 2025 – Ultimate Comprehensive Study Guide for TEAS 7
Exam Preparation | Exhaustive Resource Featuring Over 230 Verified
Practice Questions, In-Depth Answer Explanations, Essential Test-Taking
Strategies, Detailed Subject Reviews for All Sections, and Proven
Techniques to Secure High Scores in Nursing School Admissions
Question 1:
Which of the following is a function of the liver?
A) Filtration of blood
B) Production of insulin
C) Absorption of nutrients
D) Regulation of body temperature
CORRECT ANSWER: A) Filtration of blood
Rationale: The liver plays a crucial role in filtering toxins from the blood, producing bile
for digestion, and metabolizing nutrients. Insulin is produced by the pancreas, not the
liver.
Question 2:
What is the primary function of red blood cells?
A) Fighting infections
B) Carrying oxygen
C) Clotting blood
D) Regulating body temperature
CORRECT ANSWER: B) Carrying oxygen
Rationale: Red blood cells contain hemoglobin, which binds to oxygen in the lungs and
transports it to tissues throughout the body. Their main purpose is gas exchange.
Question 3:
Which system of the body is responsible for long-term regulation of growth and
metabolism?
A) Nervous system
B) Endocrine system
C) Immune system
D) Respiratory system
CORRECT ANSWER: B) Endocrine system
,Rationale: The endocrine system regulates various bodily functions over long periods
through hormones, influencing growth, metabolism, and homeostasis.
Question 4:
What is the pH of pure water?
A) 0
B) 4
C) 7
D) 14
CORRECT ANSWER: C) 7
Rationale: Pure water has a neutral pH of 7, indicating that it is neither acidic nor basic.
This neutrality is essential for many biological processes.
Question 5:
Which of the following best describes the process of osmosis?
A) Movement of solutes from high to low concentration
B) Movement of water from low to high solute concentration
C) Active transport against a concentration gradient
D) Movement of solutes through a semi-permeable membrane
CORRECT ANSWER: B) Movement of water from low to high solute concentration
Rationale: Osmosis specifically refers to the movement of water across a semi-
permeable membrane from an area of lower solute concentration to an area of higher
solute concentration to equalize concentrations.
Question 6:
What is the largest organ in the human body?
A) Liver
B) Heart
C) Skin
D) Lung
CORRECT ANSWER: C) Skin
Rationale: The skin is the largest organ, serving as a protective barrier and playing a
vital role in regulating body temperature.
Question 7:
,Which part of the brain is responsible for regulating balance and coordination?
A) Cerebrum
B) Brainstem
C) Cerebellum
D) Thalamus
CORRECT ANSWER: C) Cerebellum
Rationale: The cerebellum coordinates voluntary movements and maintains posture
and balance.
Question 8:
What type of cell division occurs in the formation of gametes?
A) Mitosis
B) Meiosis
C) Binary fission
D) Budding
CORRECT ANSWER: B) Meiosis
Rationale: Meiosis is the process that produces gametes (sperm and eggs) with half the
number of chromosomes.
Question 9:
What is the primary source of energy for the body?
A) Proteins
B) Carbohydrates
C) Fats
D) Vitamins
CORRECT ANSWER: B) Carbohydrates
Rationale: Carbohydrates are the body's main source of energy, quickly converted to
glucose for cellular functions.
Question 10:
Which vitamin is obtained primarily from sunlight?
A) Vitamin A
B) Vitamin B12
, C) Vitamin C
D) Vitamin D
CORRECT ANSWER: D) Vitamin D
Rationale: The skin synthesizes vitamin D when exposed to sunlight, which is essential
for bone health.
Question 11:
In which organelle does cellular respiration occur?
A) Nucleus
B) Ribosome
C) Mitochondria
D) Endoplasmic reticulum
CORRECT ANSWER: C) Mitochondria
Rationale: Mitochondria are known as the "powerhouses" of the cell, where cellular
respiration takes place to produce energy.
Question 12:
Which of the following is not a carbohydrate?
A) Glucose
B) Starch
C) Cellulose
D) Lipid
CORRECT ANSWER: D) Lipid
Rationale: Lipids are fats and are chemically different from carbohydrates, which are
sugars and starches.
Question 13:
Which blood type is known as the universal donor?
A) A
B) B
C) AB
D) O
CORRECT ANSWER: D) O
Exam Preparation | Exhaustive Resource Featuring Over 230 Verified
Practice Questions, In-Depth Answer Explanations, Essential Test-Taking
Strategies, Detailed Subject Reviews for All Sections, and Proven
Techniques to Secure High Scores in Nursing School Admissions
Question 1:
Which of the following is a function of the liver?
A) Filtration of blood
B) Production of insulin
C) Absorption of nutrients
D) Regulation of body temperature
CORRECT ANSWER: A) Filtration of blood
Rationale: The liver plays a crucial role in filtering toxins from the blood, producing bile
for digestion, and metabolizing nutrients. Insulin is produced by the pancreas, not the
liver.
Question 2:
What is the primary function of red blood cells?
A) Fighting infections
B) Carrying oxygen
C) Clotting blood
D) Regulating body temperature
CORRECT ANSWER: B) Carrying oxygen
Rationale: Red blood cells contain hemoglobin, which binds to oxygen in the lungs and
transports it to tissues throughout the body. Their main purpose is gas exchange.
Question 3:
Which system of the body is responsible for long-term regulation of growth and
metabolism?
A) Nervous system
B) Endocrine system
C) Immune system
D) Respiratory system
CORRECT ANSWER: B) Endocrine system
,Rationale: The endocrine system regulates various bodily functions over long periods
through hormones, influencing growth, metabolism, and homeostasis.
Question 4:
What is the pH of pure water?
A) 0
B) 4
C) 7
D) 14
CORRECT ANSWER: C) 7
Rationale: Pure water has a neutral pH of 7, indicating that it is neither acidic nor basic.
This neutrality is essential for many biological processes.
Question 5:
Which of the following best describes the process of osmosis?
A) Movement of solutes from high to low concentration
B) Movement of water from low to high solute concentration
C) Active transport against a concentration gradient
D) Movement of solutes through a semi-permeable membrane
CORRECT ANSWER: B) Movement of water from low to high solute concentration
Rationale: Osmosis specifically refers to the movement of water across a semi-
permeable membrane from an area of lower solute concentration to an area of higher
solute concentration to equalize concentrations.
Question 6:
What is the largest organ in the human body?
A) Liver
B) Heart
C) Skin
D) Lung
CORRECT ANSWER: C) Skin
Rationale: The skin is the largest organ, serving as a protective barrier and playing a
vital role in regulating body temperature.
Question 7:
,Which part of the brain is responsible for regulating balance and coordination?
A) Cerebrum
B) Brainstem
C) Cerebellum
D) Thalamus
CORRECT ANSWER: C) Cerebellum
Rationale: The cerebellum coordinates voluntary movements and maintains posture
and balance.
Question 8:
What type of cell division occurs in the formation of gametes?
A) Mitosis
B) Meiosis
C) Binary fission
D) Budding
CORRECT ANSWER: B) Meiosis
Rationale: Meiosis is the process that produces gametes (sperm and eggs) with half the
number of chromosomes.
Question 9:
What is the primary source of energy for the body?
A) Proteins
B) Carbohydrates
C) Fats
D) Vitamins
CORRECT ANSWER: B) Carbohydrates
Rationale: Carbohydrates are the body's main source of energy, quickly converted to
glucose for cellular functions.
Question 10:
Which vitamin is obtained primarily from sunlight?
A) Vitamin A
B) Vitamin B12
, C) Vitamin C
D) Vitamin D
CORRECT ANSWER: D) Vitamin D
Rationale: The skin synthesizes vitamin D when exposed to sunlight, which is essential
for bone health.
Question 11:
In which organelle does cellular respiration occur?
A) Nucleus
B) Ribosome
C) Mitochondria
D) Endoplasmic reticulum
CORRECT ANSWER: C) Mitochondria
Rationale: Mitochondria are known as the "powerhouses" of the cell, where cellular
respiration takes place to produce energy.
Question 12:
Which of the following is not a carbohydrate?
A) Glucose
B) Starch
C) Cellulose
D) Lipid
CORRECT ANSWER: D) Lipid
Rationale: Lipids are fats and are chemically different from carbohydrates, which are
sugars and starches.
Question 13:
Which blood type is known as the universal donor?
A) A
B) B
C) AB
D) O
CORRECT ANSWER: D) O
