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Unit 5: Body systems

Total questions: 100

Worksheet time: 1hrs 4mins

Name
Class
Date
1.

What body system breaks down food into smaller molecules?

a)

Digestive System

b)

Circulatory System

c)

Respiratory System

d)

Endocrine System

2.

Which organ system takes in oxygen?

a)

Respiratory System

b)

Circulatory System

c)

Digestive System

d)

Nervous System

3.

Which organ system is responsible for transporting oxygen, nutrients and other molecules around the body?

a)

Circulatory System

b)

Respiratory System

c)

Nervous System

d)

Endocrine System

4.

Which body systems working together to bring in oxygen and transport it throughout the body?

a)

Circulatory and respiratory systems

b)

Digestive and circulatory systems

c)

Respiratory and digestive systems

d)

Nervous and Endocrine Systems

5.

Which structure is found inside single celled organisms?

a)

Organelles

b)

Tissues

c)

Organ

d)

Organ systems

6.

Which structure is the LEAST complex of those listed below?

a)

DNA

b)

Kidneys

c)

Kangaroo

d)

Endocrine System

7.

Which term means a group of cells with the same structure and function?

a)

tissue

b)

organ

c)

organ system

d)

organism

8.

Which term means a sub-cellular structure that is found inside cells?

a)

Organelle

b)

Organ

c)

Organ system

d)

Organism

9.

Which term below means a group of organs with a common function?

a)

Organ system

b)

Cells

c)

Organelles

d)

Organ

10.

Which process has oxygen and glucose as reactants?

a)

Cellular Respiration

b)

Photosynthesis

c)

Protein Sythesis

11.

Which process would be stop working if the respiratory system is nonfunctional?

a)

Cellular Respiration

b)

Photosynthesis

c)

Protein Synthesis

d)

Digestion

12.

Which term means to build a larger molecule?

a)

Synthesis

b)

Digestion

c)

Process

d)

Distribution

13.

Which term means to break down into smaller molecules?

a)

Digestion

b)

Synthesis

c)

Manufacturing

d)

Distribute

e)

Process

14.

Why must starch be digested before it is used inside cells?

a)

It is too large to diffuse to the membrane

b)

Enzymes are specific

c)

The shape of the enzyme has to fit subtrate

15.

Why are enzymes specific?

a)

Enzymes have a specific shape

b)

Enzymes are too large

c)

Enzymes are proteins

16.

What are biological catalysts?

a)

Enzymes that speed up chemical reactions

b)

Carbohydrates

c)

Digestion

d)

Synthesis

17.

What organelle synthesizes proteins?

a)

Ribosomes

b)

Mitochondria

c)

Cell membrane

d)

Cytoplasm

18.

What is the main organ of the digestive system?

a)

Stomach

b)

Lungs

c)

Heart

d)

Brain

19.

What is the main organ of the respiratory system?

a)

Lungs

b)

Heart

c)

Stomach

20.

What is the main organ of the circulatory system?

a)

Heart

b)

Lung

c)

Stomach

d)

Brain

21.

What does absorb mean?

a)

Take in

b)

Let out

c)

Synthesize

d)

Break down

22.

Define expel.

a)

Let out

b)

Absorb

c)

Synthesize

d)

Manufacture

23.

Why can't the same enzyme break down carbohydrates and proteins?

a)

Enzymes have a specific shape

b)

Enzymes have too many functions

c)

Enzymes speed up chemical reactions

24.

What is the optimal pH of pepsin?

a)

1.5

b)

6

c)

9.5

d)

Not found on the graph

25.

What is the optimal pH of Salivary amylase?

a)

1.5

b)

6

c)

9

d)

Can't tell based on the graph

26.

What is the optimal pH of Akaline phosphatase?

a)

1.5

b)

6

c)

9

d)

Not found in the graph

27.

What does optimal pH mean?

a)

pH that gives the highest rate of reaction for the enzyme

b)

pH that gives the lowest rate of reaction for the enzyme

c)

temperature that gives the highest rate of reaction for the enzyme

d)

temperature that gives the lowest rate of reaction for the enzyme

28.

What is the relationship between heart rate and exercise?

a)

As the amount of exercise increases the heart rate increases

b)

As the amount of exercise increases the heart rate decreases

c)

As the amount of exercise decreases the heart rate increases

29.

Why does your heart rate and breathing rate increase when you exercise?

a)

When exercising you need to intake more oxygen and expel more carbon dioxide

b)

When exercising it doesn't matter how much oxygen and carbon dioxide you need

c)

When exercising your brain is out of control and can't tell what is happening to you

d)

When exercising your digestive system needs more nutrients

30.

What is the function of the circulatory system?

a)

intake oxygen

b)

transport oxygen and other nutrients throughout the body

c)

communicate with other body system to maintain blood glucose levels

d)

regulate hormone production

31.
What body system protects animals against invaders such as bacteria and viruses?
a)
Immune System
b)
Integumentary System
c)
Mammary System
d)
Respiratory System
32.
All foreign materials that cause a response from the immune system are called _____________________.
a)
Antigens
b)
Active Immunity
c)
Antibodies
d)
Antibiotics
33.
Proteins produced by B cells and designed to mark antigens to be destroyed, specific to the antigen.
a)
Antigens
b)
Active Immunity
c)
Antibodies
d)
Antibiotics
34.

Doctors sometimes use a vaccine to prepare the body to defend itself against future infections. These vaccines most often contain

a)

antibodies

b)

antibiotics

c)

white blood cells

d)

weakened pathogens

35.

White blood cells are most closely associated with which two body systems?

a)

circulatory and digestive

b)

immune and circulatory

c)

digestive and excretory

d)

excretory and immune

36.

Anhidrosis is the inability to sweat normally. If the human body cannot sweat properly, it cannot cool itself, which is potentially harmful.

Anhidrosis most directly interferes with:

a)

a feedback mechanism that maintains homeostasis

b)

an immune system response to harmless antigens

c)

the synthesis of hormones in the circulatory system

d)

the enzymatic breakdown of water in cells

37.

Scientists monitoring frog populations have noticed that the ratio of male frogs to female frogs varies when certain chemicals are present in the environment. The influence of estrogen, for example, has a noticeable effect. In the presence of a higher amount of estrogen, it would be most likely that

a)

fewer males would be found because they are much larger and fewer are produced

b)

fewer females would be found because they are more sensitive to pesticides

c)

more males would be found because estrogen promotes the development of male characteristics

d)

more females would be found because estrogen promotes the development of female characteristics

38.
Where is testosterone produced? 
a)
2
b)
8
c)
9
d)
11
39.
Where are sperms produced?
a)
9
b)
11
c)
10
d)
12
40.

What is the function of the ovaries?

a)

production of estrogen

b)

production of eggs

c)

production of progesterone

d)

all questions are correct

41.

Where does implantation take place?

a)

vagina

b)

uterus

c)

ovary

d)

oviduct

42.

What is the name of the female sex cell?

a)

spermatogonio

b)

oogonio

c)

sperm

d)

ova/ovum

43.
The reproduction in Humans is..
a)
asexual
b)
sexual-asexual
c)
binaria
d)
sexual
44.

A sex cell contains:

a)

half number of chromosomes

b)

diploid number of chromosomes

c)

different number of chromosomes

d)

no chromosomes

45.

A sex cell (egg and sperm) is produced by:

a)

mitosis

b)

meiosis

c)

simple cell division

d)

binary fission

46.

After meiosis..

a)

4 new cells with the same number of chromosomes

b)

2 new cells with the same number of chromosomes

c)

2 new cells with half the number of chromosomes

d)

4 new cells with half the number of chromosomes

47.
The drinking of alcoholic beverages by a pregnant woman is harmful to the development of her fetus. This is most damaging early in a pregnancy because during this time
a)
the lungs of the fetus become functional.
b)
alcohol can easily enter the mouth of the fetus.
c)
many of the essential organs of the fetus are forming.
d)
the fetus cannot excrete wastes.
48.
Which of the following describes fertilization? 
a)
cell differentiation to form a blastula
b)
formation of germ layers in a deuterostome
c)
a sperm joining an egg to form a zygote
d)
sperm and egg production
49.
What is the human embryo called after the eighth week of development?
a)
zygote
b)
an infant
c)
a fetus
d)
a morula
50.
The diagram below represents a stage in the development of a fetus. A major function of structure X is to
a)
produce gametes by meiosis
b)
protect the fetus from physical injury
c)
 exchange materials between the mother and the fetus
d)
store food to provide the fetus with nutrients
51.

These are the major female sex organs that produce ova or eggs.

a)

Ovary/ovaries

b)

Testes/testicles

c)

Vulva

d)

Penis

52.

Menstrual cycle happens at this time of female's life.

a)

At birth

b)

At puberty

c)

At old age

d)

At menopause

53.

What is number 5 pointing to?

a)

Fallopian tube

b)

Cervix

c)

Uterus

d)

Vagina

e)

Ovary

54.

A fertilized egg develops in the

a)

the cervix

b)

the uterus

c)

an ovary

d)

the vagina

55.

A ___________ is formed when fertilization occurs.

a)

embryo

b)

zygote

c)

fetus

d)

sperm

56.

Digestion starts in the ...

a)

stomach.

b)

esophagus.

c)

epiglottis

d)

mouth.

57.
Enzymes (chemicals) in your saliva help break down food while chewing.  This is...
a)
Mechanical digestion
b)
Chemical digestion
58.
Gastric juices in the stomach digest food into a thick liquid.  This is...
a)
Mechanical digestion
b)
Chemical digestion
59.
Number 2 is pointing to the...
a)
Esophagus
b)
Stomach
c)
Small intestine
d)
Anus
60.

A vaccine contains...

a)

cow pox

b)

a small amount of the pathogen that is weakened or dead

c)

a large amount of the pathogen

d)

small pox

61.
Disease-causing microorganism, such as a bacterium or virus.
a)
pathogen 
b)
allergen
c)
prion 
d)
antigen 
62.

Which statement is characteristic of reproduction in humans?

a)

The reproductive cells of males and females differ in chromosome number.

b)

Males and females produce gametes in the ovaries.

c)

Males and females produce the same number of gametes.

d)

The reproductive cycles of males and females are regulated by hormones.

63.

A diagram of the female reproductive system is shown below. Identify the structure within which the egg cell is normally fertilized.

a)

A

b)

B

c)

C

d)

D

64.

The diagram below represents an important biological technique scientists rely on to produce replacement hormones. Which two processes are required for the technique to successfully produce hormones?

a)

replication of DNA in bacterial cells and cell division

b)

replication of DNA in bacterial cells and gamete formation

c)

meiosis and development

d)

mitosis and fertilization

65.

Group of cells that make special chemicals for your body

a)

hormones

b)

cells

c)

glands

d)

nerves

66.

Chemical made by glands

a)

enzymes

b)

cells

c)

hormones

67.

Endocrine glands secrete _

a)

Hormones

b)

Neurotransmitters

c)

A wide range of chemical substances

68.

Which term refers to the body's use of energy for energy and growth?

a)

Excretion

b)

Metabolism

c)

Digestion

d)

Respiration

69.
What is the function of the respiratory system
a)
Take in O2 only
b)
Remove CO2 only
c)
Take in O2 ad remove CO2
d)
Make sugar
70.

Another main function of the respiratory system is to remove ______ _______ gas from the body. This can be toxic to the cells if it is not removed.

a)

nitrogen

b)

oxygen

c)

carbon dioxide

d)

helium

71.
Which organ of the excretory system stores urine until the body is ready to eliminate it?
a)
ureters
b)
urethra
c)
urinary bladder
d)
urea
72.
What is the main function of the excretory system?
a)
to collect and remove wastes from the body
b)
to strengthen skeletal muscles
c)
to protect the nervous system
d)
to bring oxygen to body cells
73.

What does your heart do?

a)

pumps blood through your body

b)

protects your body

c)

helps your exercize

74.

What does circulate mean?

a)

pump blood

b)

beat quickly

c)

go around and around

75.

Which of the following is a connection between the circulatory system and the muscular system?

a)

the heart is composed of cardiac muscle

b)

the heart makes calcium to give to muscles

c)

muscles create blood cells that get circulated through body

d)

the two systems are not connected

76.

What two systems are interacting when your body is digesting food, and spreading nutrients around your body?

a)

Digestion & Circulatory

b)

Respiratory & Digestion

c)

Circulatory & Respiratory

d)

Nervous & Respiratory

77.

What three main systems are interacting to allow you to walk around?

a)

Endocrine & Nervous & Skeletal

b)

Nervous & Muscle & Skeletal

c)

Muscle & Endocrine & Leg

d)

Skeletal & Endocrine & Muscle

78.

What is homeostasis in the human body

a)

A state of powerful focus

b)

The optimal balance with in your body

c)

Full body system failure

d)

A disease that is from bacteria

79.

Can you always control the way your body reacts to stimulus?

a)

No

b)

yes

80.

What is it called when your body reacts to stimulus?

a)

Response

b)

Emotions

c)

Senses

d)

Hopes and dreams

81.

A stimulus is what?

a)

Something from outside your body interacting with one of your senses

b)

Something only your body can produce

c)

Something not possible without gravity

d)

Always something bad for you

82.
Which representation would show the organization of life from simplest to the most complex?
a)
Heart muscle tissue, cardiovascular system, heart muscle tissue
b)
cardiovascular system, heart muscle cells, heart muscle tissue
c)
cardiovascular system, heart tissue, heart cells
d)
Heart muscle cells - heart muscle tisse, heart, cardiovascular system
83.

What 2 systems: Absorb and deliver the digested nutrients to the cells

a)

Digestive and muscular

b)

Muscular and lymphatic

c)

Digestive and circulatory

d)

Nervous and skeletal

84.

Which of the following is NOT TRUE about our body's systems?

a)

The digestive system provides the energy that the muscular system needs to move and function

b)

The circulatory system brings the red blood cells to the lungs so that carbon dioxide can be dropped off and oxygen picked up

c)

The skeletal systems sends signals throughout the entire body.

d)

The muscular system helps us walk, move and sit up

85.

The immune system fights diseases. The circulatory system pairs with the immune system because ___.

a)

blood is made in the bones.

b)

plasma carries nutrients.

c)

red blood cells carry oxygen.

d)

white blood cells fight infection.

86.

Why are the lungs, the major organ of the respiratory system, also considered an excretory organ?

a)

They get rid of carbon dioxide, a cellular waste

b)

They get rid of oxygen, a cellular waste

c)

They get rid of urea, a cellular waste

d)

They get rid of salt, a cellular waste

87.
A student studying interactions between body systems constructs this table. The student plans to fill out the table with phrases that describe an interaction between each pair of systems. 
Which of these phrases could be placed in the position marked with an X? 
a)
Provides nutrients to kidney cells
b)
Provides nutrients to brain cells
c)
Provides nutrients to nerve cells
d)
Provides nutrients to muscle cells 
88.
Scientists studying illnesses caused by chemically contaminated food conduct research to minimize the effects of these diseases on society. These chemicals harm the body through interactions between the digestive system and the immune system. Scientists conducting this research are likely to describe which of these interactions between the digestive and immune systems? 
a)
Chemicals enter the immune system through a break in the skin. The chemical contamination is then passed to the digestive system by the circulatory system.
b)
The immune system transforms the chemicals in the contaminated foods into harmless chemicals. These harmless chemicals are then broken down by the digestive system.
c)
When contaminated foods are eaten, the immune system prevents the chemicals from entering the digestive system.
d)
Chemicals enter the digestive system through contaminated foods. Once in the body, the chemical contaminants impair the body’s ability to fight off infectious diseases.
89.
The graph models core body temperature during a rapid change in environmental conditions.
Which statement explains the pattern in the graph?
a)
Body temperature varies in a predictable pattern during the day.
b)
Body temperature is controlled by an internal feedback mechanism.
c)
Vasodilation and vasoconstriction are dependent on the time of day.
d)
Vasodilation and vasoconstriction trigger an immediate increase in body temperature.
90.
 During the final stages of human gestation, receptors for the hormone oxytocin increase on the smooth muscle cells of the uterus. The release of oxytocin during labor stimulates the smooth muscle tissue in the wall of the uterus. The vigorous contraction of the uterine smooth muscle helps push the baby through the birth canal so that delivery can occur. This process involves the interaction of which organ systems? 
a)
Endocrine and muscular only
b)
Endocrine and reproductive only
c)
Endocrine, muscular, and reproductive
d)
Endocrine, reproductive, and excretory
91.
Gas exchange between the blood and the outside occurs in which system?
a)
Respiratory
b)
Circulatory
c)
Lymphatic
d)
Integumentary
92.
What are the main components of the circulatory system?
a)
heart, blood, and blood vessels
b)
nose, trachea, lungs, and diaphragm
c)
brain, spinal cord, and nerves
d)
mouth, esophagus, stomach, intestines
93.

Which systems are interacting when the blood carries nutrients to other parts of the body?

a)

Nervous System

b)

Digestive System

c)

Skeletal System

d)

Endocrine System

e)

Circulatory System

94.

Which systems are interacting when the brain stimulates a fever in response to an infection.

a)

Excretory System

b)

Nervous System

c)

Immune System

d)

Endocrine System

e)

Circulatory System

95.

Which systems are interacting when the muscles in the esophagus contract to move food to the stomach?

a)

Digestive System

b)

Nervous System

c)

Muscular System

d)

Endocrine System

e)

Circulatory System

96.

Which systems are interacting when wastes are filtered from the blood and are excreted from the body as urine?

a)

Digestive System

b)

Integumentary System

c)

Muscular System

d)

Excretory System

e)

Circulatory System

97.

Which systems are interacting when calcium is absorbed through our diet and used to strengthen bones.

a)

Immune System

b)

Digestive System

c)

Muscular System

d)

Skeletal System

e)

Circulatory System

98.

Which systems are interacting when hormones such as testosterone and estrogen are released during puberty.

a)

Reproductive System

b)

Digestive System

c)

Endocrine System

d)

Nervous System

e)

Circulatory System

99.

Which systems are interacting when the brain regulates the position of bones by controlling the muscles.

a)

Reproductive System

b)

Endocrine System

c)

Muscular System

d)

Nervous System

e)

Skeletal System

100.

What are the levels of organization starting from simple to complex?

a)

cells- tissues- organs- organ systems- organisms- populations- communities- ecosystem

b)

ecosystem- communitites- populations- organisms- organ systems- organs- tissues- cells

c)

cells- organs- tissues- organ systems- populations- ecosystem

d)

tissue- cells- organs- organ systems- organisms- populations- communities- ecosystem

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