wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Human Biology Practice Questions Set 1: Chapters 1-3

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Which of the following is the best description of biology?

a)

The study of animal structures

b)

The study of living things

c)

The study of fossils

d)

The study of how organisms process energy

e)

The study of patterns of inheritance

2.

In the levels of biological organization below, choose the level that refers to groups of interacting individuals of one species.

a)

Community

b)

Cells

c)

Populations

d)

Ecosystems

e)

None of the above

3.

Humans are members of the ________.

a)

Domain eukarya

b)

Domain archaea

c)

Domain bacteria

d)

Kingdom plantae

e)

Fungi

4.

What is the information molecule found in the nucleus of eukaryotic cells?

a)

Protein

b)

DNA

c)

The ecosystem

d)

Lipids

e)

Mutation

5.

Evolution by natural selection was first put forth by ____________.

a)

McClintock

b)

Watson

c)

Beadle

d)

Darwin

e)

Crick

6.

Science is capable of ____________.

a)

determining the metaphysical causes for physical phenomena

b)

studying phenomena that cannot be observed and measured directly

c)

making value judgments

d)

addressing questions of ethical dilemmas

e)

measuring and reporting naturally occurring processes

7.

The process by which living organisms maintain a fairly constant internal environment despite changes in the external environment is known as ____________.

a)

homeostasis

b)

evolution

c)

chemistry

d)

metabolism

e)

biology

8.

A hypothesis must be testable to be scientifically valid. Being testable means that ____________.

a)

There is no way the hypothesis could be wrong

b)

A controlled experiment should support the hypothesis

c)

Everyone must agree that the hypothesis is correct

d)

The hypothesis has been proven wrong

e)

None of the above, because science is based on personal opinion

9.

A theory is ____________.

a)

A poorly supported idea that has little backing but might be correct

b)

A well-supported explanation that explains broad concepts

c)

The same thing as a hypothesis

d)

Not correct unless it is several years old

e)

None of the above.

10.

The biological study of the parts of living things is the science of ____________.

a)

Evolution

b)

Physiology

c)

Biochemistry

d)

Anatomy

e)

Genetics

11.

How many separate “characteristics of life” are discussed in your text and in our lecture?

a)

2

b)

4

c)

7

d)

10

e)

12

12.

Which of the following is not a specific human characteristic?

a)

Large brains

b)

Complex language

c)

Walking on two legs

d)

DNA as the molecule of life

e)

Opposable thumbs

13.

Who reviews scientific literature to ensure it is fit for publishing?

a)

The judges on American Idol

b)

A government panel

c)

The local city council

d)

The departmental dean

e)

Other scientists in that field of study

14.

Which of the following is the best (most reliable) source of scientific information?

a)

The local newspaper

b)

The evening news program

c)

Scientific Journals

d)

Wikipedia!

e)

Time Magazine

15.

Science plays a role in which of the following fields?

a)

Agriculture

b)

Environmental protection

c)

Medicine

d)

Law enforcement

e)

All the above

16.

Which of the following is not one of the four most abundant elements that make up the human body?

a)

Iron

b)

Carbon

c)

Hydrogen

d)

Oxygen

e)

Nitrogen

17.

H2O (water) is an example of a _________.

a)

Element

b)

Cell

c)

Atom

d)

Isotope

e)

Molecule

18.

Which one of the following is the smallest unit of matter that retains the properties of an element?

a)

Compound

b)

Carbon

c)

Atom

d)

Proton

e)

Molecule

19.

The number of protons in an atom determines its ________.

a)

Weight

b)

Isotopic status

c)

Mass number

d)

Tendency to form ionic bonds

e)

Atomic number and element name

20.

Fluorine's atomic number is 9 and its mass number is 19. Which of the following is true of fluorine?

a)

It contains 9 protons and 10 neutrons

b)

It must have 28 electrons

c)

It contains 19 protons and 9 neutrons

d)

It contains 9 protons and 19 neutrons

e)

It is lighter than helium

21.

Isotopes of an element differ in their ________.

a)

Number of electrons

b)

Mass number

c)

Atomic number

d)

Number of neutrons

e)

Both B & D

22.

The bond formed by the attraction of oppositely charged ions is a(n) ________ bond.

a)

Hydrogen

b)

Polar

c)

Ionic

d)

Covalent

e)

Hydrophilic

23.

Which of the following describes a covalent bond?

a)

Electron transfer

b)

The attraction between the hydrogen on one water molecule and the oxygen of another water molecule

c)

Nuclear decay

d)

The sharing of electrons between two atoms

e)

The bond between sodium and chlorine in salt.

24.

The attraction between the partial positive pole of the hydrogen atom of one water molecule and the partial negative pole of the oxygen atom of another water molecule is classified as a

a)

Hydrophobic bond

b)

covalent bond

c)

Ionic bond

d)

Hydrogen bond

e)

Polar transfer

25.

Cocoa is mixed with hot water to make hot chocolate. The cocoa is the ________, the hot water is the ________, and the resultant hot chocolate is the ________.

a)

Solute...solvent...solution

b)

Solvent...solution...solute

c)

Solution...solvent...solute

d)

Solvent...solute...solution

e)

Solute...solution...solvent

26.

Which of the following is a substance that resists changes in pH?

a)

Acid

b)

Buffer

c)

Base

d)

Solvent

e)

Solution

27.

A solution that is pH 2 is more __________ than a solution that is pH 10.

a)

Basic

b)

Neutral

c)

Acidic

d)

None of the above

28.

Pure water is a neutral substance and would register as pH ________ on the pH scale.

a)

1

b)

14

c)

6

d)

7

e)

None of the above

29.

The four main categories of biomolecules are __________.

a)

Proteins, DNA, RNA and steroids

b)

Sugars, lipids, polysaccharides, and proteins

c)

Proteins, nucleic acids, carbohydrates and lipids

d)

Nucleic acids, carbohydrates, sugars, and proteins

e)

RNA, DNA, proteins and carbohydrates

30.

Sugars are mainly used in our bodies

a)

For membrane construction

b)

As structural molecules, such as hair and fingernails

c)

For building the genetic material

d)

As fuel

e)

To store energy as fat

31.

DNA is composed of ________.

a)

Proteins

b)

Steroids

c)

Nucleotides

d)

Amino acids

e)

Fatty acids

32.

A polysaccharide that animals use for storing energy in muscle and liver is ________.

a)

Glucose

b)

Glycogen

c)

Starch

d)

Chitin

e)

Cellulose

33.

Cholesterol belongs to what class of molecules?

a)

Proteins

b)

Amino acids

c)

Lipids

d)

Carbohydrates

e)

Nucleic acids

34.

Some athletes use anabolic steroids to build their body mass. Why is this considered a problematic practice?

a)

Anabolic steroids inhibit the body's production of normal sex hormones

b)

Anabolic steroids can cause mood swings and depression

c)

Anabolic steroids can reduce the sex drive

d)

Anabolic steroids can result in liver problems

e)

All the choices are correct

35.

Proteins are polymers of ________.

a)

DNA macromolecules

b)

Chromosomes

c)

Ribosomes

d)

Amino acid molecules

e)

Photosynthesis molecules

36.

To enter or leave a cell, substances must pass through _____

a)

A microtubule

b)

the Golgi apparatus

c)

a ribosome

d)

the nucleus

e)

the plasma membrane

37.

What are the three main components of cell membranes?

a)

nucleic acids, carbohydrates and sugars

b)

proteins, nucleic acids and DNA

c)

chromosomes, ribosomes and proteins

d)

proteins, phospholipids and cholesterol

e)

ATP, RNA and DNA

38.

Which of the following would not be found in a prokaryotic cell's cytoplasm?

a)

A ribosome

b)

a nucleus

c)

a plasma membrane

d)

DNA

e)

the cytosol

39.

Most of the DNA in a eukaryotic cell is in _____

a)

the cytoskeleton

b)

the mitochondria

c)

the endomembrane system

d)

the cytoplasm

e)

the nucleus

40.

Of the following organelles, which group is involved in manufacturing and distributing proteins?

a)

lysosome, plasma membrane

b)

ribosome, rough endoplasmic reticulum, Golgi apparatus

c)

mitochondrion and ATP

d)

chloroplast and light reaction

e)

smooth endoplasmic reticulum, and plasma membrane

41.

What is the most valuable product of cellular respiration?

a)

oxygen

b)

carbon dioxide

c)

glucose

d)

ATP

e)

all of the above

42.

Which of the following is a human cell with a flagellum?

a)

Plasma cell

b)

Paramecium

c)

Brain cell (also called a neuron)

d)

White blood cell

e)

Sperm cell

43.

The movement of atoms, ions, or molecules from a region of higher concentration to a region of lower concentration is called _____

a)

Urban transport

b)

Spontaneous combustion

c)

Diffusion

d)

Heat

e)

Active transport

44.

The diffusion of water from high to low concentration is called _____

a)

active transport

b)

osmosis

c)

exocytosis

d)

passive transport

e)

facilitated diffusion

45.

The transport of atoms or molecules from a lower concentration to a higher concentration, which defies the laws of physics, is an energy dependent process known as _____

a)

diffusion

b)

active transport

c)

lipid translocation

d)

osmosis

e)

kinetic relocation

46.

The function of cellular respiration is to _____

a)

produce oxygen (O2)

b)

extract CO2 from the atmosphere

c)

produce usable cellular energy (ATP) from sugar (glucose)

d)

make proteins

e)

produce carbohydrates

47.

The energy given up by electrons as they move through the electron transport chain is directly used to _____

a)

break down glucose

b)

produce ATP

c)

make NADH

d)

pump H+ across the inner membrane

e)

produce oxygen

48.

The enzyme ATP synthase gets its energy for making ATP directly from _______.

a)

sunlight

b)

the flow of H+ (protons) through the enzyme

c)

the flow of oxygen

d)

the movement of electrons through the enzyme

e)

the splitting of water

49.

Which part of the breakdown of glucose requires molecular oxygen (O2)?

a)

Glycolysis

b)

the Citric Acid cycle

c)

the electron transport chain

d)

fermentation

e)

all the above

50.

Most of the 38 ATP produced in cellular respiration comes from _______.

a)

Glycolysis

b)

the electron transport chain

c)

lactic acid fermentation

d)

synthesis

e)

the Citric Acid cycle

Similar Resources on Wayground

Christianity and Early Church History final exam

53 questions

Christianity and Early Church History final exam

quiz

Worksheet

•

Professional Development

Final Examination Questions 2025

46 questions

Final Examination Questions 2025

quiz

Worksheet

•

Professional Development

Japanese Vocab

50 questions

Japanese Vocab

quiz

Worksheet

•

Professional Development

Pharmacology Quiz

47 questions

Pharmacology Quiz

quiz

Worksheet

•

Professional Development

Mari’s RBT practice

47 questions

Mari’s RBT practice

quiz

Worksheet

•

Professional Development

Ôn Thi HKI K11 2025-2026

50 questions

Ôn Thi HKI K11 2025-2026

quiz

Worksheet

•

Professional Development

IT Vocabulary Test 50-100

50 questions

IT Vocabulary Test 50-100

quiz

Worksheet

•

Professional Development

APLC unit 1and 2

49 questions

APLC unit 1and 2

quiz

Worksheet

•

Professional Development