TEAS Practice Test: Video 4 Answers (25 Questions) — Questions and Answers

Question 1: What is the term for the energy stored in an object due to its position or configuration?

Kinetic energy
Thermal energy
Chemical energy
Potential energy (Correct answer)

Correct answer: Potential energy

Potential energy is stored energy based on an object's position (gravitational PE), configuration (elastic PE), or chemical structure (chemical PE).

Question 2: Which state of matter has definite volume but no definite shape?

Plasma
Gas
Liquid (Correct answer)
Solid

Correct answer: Liquid

A liquid has a definite volume but takes the shape of its container — it has no definite shape. Solids have both definite shape and volume; gases have neither.

Question 3: Which of the following best describes a physical change?

Milk souring after being left out
Wood burning in a fireplace
Water boiling and turning to steam (Correct answer)
Iron rusting when exposed to oxygen and water

Correct answer: Water boiling and turning to steam

Water boiling is a physical change — the chemical composition (H₂O) does not change, only the physical state (liquid to gas).

Question 4: What does the atomic mass of an element primarily represent?

Electrons only
Neutrons minus protons
Protons only
Protons plus neutrons (Correct answer)

Correct answer: Protons plus neutrons

Atomic mass is approximately the sum of protons and neutrons in the nucleus.

Question 5: What is the atomic number of an element?

The average atomic mass of the element
The number of electrons in the outermost shell
The total number of protons and neutrons in the nucleus
The number of protons in the nucleus of an atom (Correct answer)

Correct answer: The number of protons in the nucleus of an atom

The atomic number (Z) is the number of protons in the nucleus, which uniquely identifies the element and determines its position on the periodic table.

Question 6: Which process produces genetically identical daughter cells for growth and repair?

Meiosis
Mitosis (Correct answer)
Fertilization
Binary crossing

Correct answer: Mitosis

Mitosis produces two genetically identical diploid daughter cells.

Question 7: Which structure controls what enters and exits an animal cell?

Vacuole
Cell wall
Cell membrane (Correct answer)
Nucleolus

Correct answer: Cell membrane

The selectively permeable cell membrane regulates movement in and out of the cell.

Question 8: Which of the following correctly describes the central dogma of molecular biology?

DNA → Protein → RNA
Protein → RNA → DNA
DNA → RNA → Protein (Correct answer)
RNA → DNA → Protein

Correct answer: DNA → RNA → Protein

The central dogma describes the flow of genetic information: DNA is transcribed to RNA, which is translated to protein.

Question 9: What is the basic structural and functional unit of all living organisms?

Tissue
Organ
Cell (Correct answer)
Molecule

Correct answer: Cell

The cell is the smallest unit capable of carrying out life functions.

Question 10: The process by which a cell engulfs and destroys large particles such as bacteria is called:

Facilitated diffusion
Phagocytosis (Correct answer)
Pinocytosis
Exocytosis

Correct answer: Phagocytosis

Phagocytosis ('cell eating') is the endocytosis of large solid particles — used by white blood cells (neutrophils, macrophages) to engulf and destroy pathogens.

Question 11: Which part of the neuron receives incoming signals from other neurons?

Myelin sheath
Dendrite (Correct answer)
Axon
Axon terminal

Correct answer: Dendrite

Dendrites are the branched extensions of a neuron that receive incoming signals (synaptic inputs) from other neurons and transmit them toward the cell body.

Question 12: Bile, which helps emulsify fats in the small intestine, is produced by the:

Gallbladder
Stomach
Pancreas
Liver (Correct answer)

Correct answer: Liver

Bile is produced by liver hepatocytes and stored in the gallbladder; it is released into the duodenum to emulsify dietary fats.

Question 13: Which hormone stimulates milk production in the mammary glands?

Progesterone
Prolactin (Correct answer)
Estrogen
Oxytocin

Correct answer: Prolactin

Prolactin, secreted by the anterior pituitary, stimulates lactogenesis — milk production in mammary gland alveolar cells.

Question 14: What is the primary function of the nephron in the kidney?

Regulating blood pressure only
Producing hormones
Filtering blood and forming urine (Correct answer)
Storing bile

Correct answer: Filtering blood and forming urine

The nephron is the functional unit of the kidney responsible for filtering blood, reabsorbing nutrients, and excreting waste as urine.

Question 15: Which system works with the skeletal system to enable body movement?

Endocrine system
Urinary system
Muscular system (Correct answer)
Lymphatic system

Correct answer: Muscular system

The muscular system contracts and pulls on bones to produce movement.

Question 16: Which sentence correctly uses quotation marks with a comma?

"I am ready" , she said.
"I am ready", she said.
"I am ready," she said. (Correct answer)
"I am ready" she said.

Correct answer: "I am ready," she said.

The comma goes inside the closing quotation mark in American English.

Question 17: Which sentence correctly uses a colon?

You will: need a pen.
You will need: a pen, paper, and a book.
She said: she was tired.
You will need the following: a pen, paper, and a book. (Correct answer)

Correct answer: You will need the following: a pen, paper, and a book.

A colon follows a complete independent clause to introduce a list.

Question 18: Which of the following sentences contains a split infinitive?

She decided to study the material before the exam.
She decided to quickly study the material before the exam. (Correct answer)
She quickly decided to study the material before the exam.
She decided to study quickly the material before the exam.

Correct answer: She decided to quickly study the material before the exam.

A split infinitive occurs when an adverb is placed between 'to' and the verb. In option B, 'quickly' splits the infinitive 'to study.'

Question 19: Choose the sentence with correct pronoun-antecedent agreement.

Every nurse must bring their badge.
Every nurse must bring his or her badge. (Correct answer)
Each student lost their books.
Somebody left their coat.

Correct answer: Every nurse must bring his or her badge.

Singular antecedent 'every nurse' takes the singular 'his or her.'

Question 20: Identify the sentence with a dangling modifier.

Walking to school, I saw a dog.
Walking to school, the dog barked at me. (Correct answer)
I saw a dog while walking to school.
While I walked, a dog barked.

Correct answer: Walking to school, the dog barked at me.

The modifier implies the dog was walking to school, which is illogical.

Question 21: What is the value of |−15|?

15 (Correct answer)
1/15
0
-15

Correct answer: 15

Absolute value is the distance from zero on the number line, always non-negative. |−15| = 15.

Question 22: Which of the following is equivalent to 5(2x - 3)?

10x + 15
10x - 3
7x - 15
10x - 15 (Correct answer)

Correct answer: 10x - 15

Apply the distributive property: 5 × 2x = 10x and 5 × (-3) = -15, giving 10x - 15.

Question 23: Solve for y: 4y - 12 = 2y + 6

y = 12
y = 9 (Correct answer)
y = 6
y = 3

Correct answer: y = 9

Subtract 2y: 2y - 12 = 6. Add 12: 2y = 18. Divide by 2: y = 9.

Question 24: If a nurse earns a 12% raise on her $48,000 salary, what is her new salary?

$55,760
$53,760 (Correct answer)
$53,260
$54,260

Correct answer: $53,760

Raise = 12% × $48,000 = 0.12 × 48,000 = $5,760. New salary = $48,000 + $5,760 = $53,760.

Question 25: Which inequality represents 'x is at most 8'?

x < 8
x ≤ 8 (Correct answer)
x ≥ 8
x > 8

Correct answer: x ≤ 8

'At most 8' means x cannot exceed 8, so x ≤ 8 (x can equal 8 or be less than 8).

TEAS Practice Test: Video 4 Answers (25 Questions)

What is the term for the energy stored in an object due to its position or configuration?

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These practice questions were written with AI tools. They are not real exam questions. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

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