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Worksheets

UNIT 4 CSI EOUE

Total questions: 140

Worksheet time: 3hrs 21mins

Name
Class
Date
1.

What is the function of the cell membrane?

a)

To control what comes in and out of the cell

b)

To break down food inside the cell

c)

to serve as a barrier

d)

to eat the cells food

2.

Which organelle produces the energy a cell needs to carry out its function

a)

Mitochondria

b)

Golgi Bodies

c)

Cytoplasm

d)

Nucleus

3.

What is a fun way to remember what lysosomes do?

a)

I clean things up!

b)

Make something sweet

c)

The control center

d)

Tin of information

4.

What is the function of the Vacuoles

a)

Store food, water and waste

b)

Receive proteins

c)

Assembles amino acids

d)

Found inside the nucleus

5.

Which organelle receives proteins and materials from the ER, packages them and distributes them

a)

Vacuoles

b)

Golgi Bodies

c)

Nucleus

d)

Chromatin

6.

What is a fun way to remember what the Endoplasmic Reticulum does?

a)

transportER

b)

I am a mighty powerhouse

c)

Im the control center

7.

what is the function of ribosomes

a)

to assemble amino acids to create proteins

b)

to pack proteins

c)

to clean proteins

8.

The control center of cell is

a)

the nucleus

b)

ribosomes

c)

chromatin

9.

What is the function of the organelle depicted in the photo?

a)

To dispose of waste in the cell.

b)

To capture sunlight and convert it into glucose for the cell.

c)

To release energy into the cell.

d)

To control what leaves and enters the cell.

10.

Which photo shows the mitochondrion of the cell?

a)
b)
c)
d)
11.

The purple organelle in photo depicts which organelle?

a)

Nucleus

b)

Endoplasmic Reticulum

c)

Lysosome

d)

Ribosome

12.

Identify the structure that is indicated by the arrow in the image.

a)

cell wall

b)

central vacuole

c)

chloroplast

d)

cell membrane

13.

Identify the structure that is labeled "H" in the image.

a)

cell wall

b)

chloroplast

c)

mitochondria

d)

nucleus

e)

cell membrane

14.

Which of these organelles is not found in a animal cell?

a)

Cell Membrane

b)

Nucleus

c)

Mitochondria

d)

Cell Wall

15.

This organelle is responsible for disposing of waste in the cell.

a)

Mitochondria

b)

Nucleus

c)

Cell Wall

d)

Lysosome

16.

Which organelle serves as an internal transport system, and can be either "rough" or "smooth"?

a)

Nucleus

b)

Mitochondria

c)

Cell Wall

d)

Endoplasmic Reticulum

17.

Which organelle makes proteins?

a)

Mitochondria

b)

Chloroplast

c)

Ribosome

d)

Lysosome

18.
What is the name of the genetic material that is inside the nucleus?
a)
ER
b)
ATP
c)
YOLO
d)
DNA
19.
The two kinds of cells are Prokaryotes and Eukaryotes. How are they different?
a)
Prokaryotes have a nucleus.
b)
Eukaryotes have a nucleus.
c)
Prokaryotes are plant cells.
d)
There is no difference.
20.

Terry and James are partners in a mystery lab. The boys have a compound light microscope and several unlabeled slides. Their task is to find out everything they can about the samples on the slides. Terry puts a slide on the microscope stage and focuses the lenses on the sample. He can see that the sample is made up of tiny cells.


Terry wishes he could magnify the cells even more so he could see more details. He suggests, “If we had an electron microscope, we could see all of the cells inside these cells, and even the cells inside those smaller cells!” James disagrees with Terry's thinking. What is wrong with Terry’s suggestion?

a)

It is not possible to see anything smaller than a cell with a microscope.

b)

Electron microscopes are not as powerful as compound light microscopes.

c)

Cells are the basic unit of life and they do not have more cells inside them.

d)

Terry could see the cells inside these cells if he focused the microscope's lenses properly.

21.

During child birth a woman's body over produces a hormone called oxytocin until the baby is born. What kind of feedback loop would this be?

a)

Negative Feedback Loop

b)

Positive Feedback Loop

c)

Neutral Feedback Loop

d)

Linear Feedback Loop

22.

When you are hot, your body sweats to cool you down. This means your temperature went above normal and your body sweats to counteract that change to bring you back to normal. What kind of feedback loop would this be?

a)

Negative Feedback Loop

b)

Positive Feedback Loop

c)

Neutral Feedback Loop

d)

Linear Feedback Loop

23.

The 4 parts of the communication pathway to maintain homeostasis listed in order are:

a)

target, sensors, control center, communication system

b)

communication system, sensors, target, control center

c)

sensors, control center, communication system, target

d)

target, control center, sensors, communication system

24.

These detect changes in the environment

a)

Control Center

b)

Sensors

c)

Communication System

d)

Target

25.

This takes the messages from the sensors and is known as the control center

a)

Brain

b)

Kidney

c)

Liver

d)

Heart

26.

Messages from the brain are sent to either the nervous system (muscles) or the endocrine system (hormones), what are they referred to as?

a)

sensors

b)

target

c)

Communication System

d)

Control Center

27.

This responds to messages from the communication system and changes its level of activity to help you maintain homeostasis?

a)

sensors

b)

target organ or muscle

c)

communication system

d)

brain

28.

Thermoregulation means?

a)

Maintain temperature

b)

Maintain water levels

c)

Maintain heart rate

d)

Maintain breathing

29.

Positive Feedback loops are...

a)

Counteract changes that move above or below set values.

b)

more common

c)

regulate body temp

d)

Purposeful pushes above normal set values.

30.

Negative Feedback loops are...

a)

Purposeful pushes above normal set values.

b)

Counteract a change to bring it back to normal set values

c)

Are rare

d)

Help with childbirth

31.

Why does a nerve cell look different from a circular red blood cell?

a)

There is no connection between shape and function

b)

Cells all look exactly the same

c)

Cells are shaped differently according to their function. A nerve cell needs long arms for communication.

d)

All cells have the same exact job

32.

Maintaining internal stable conditions is the definition of...

a)

Hypertonic

b)

Hypotonic

c)

Homeostasis

d)

Heterotroph

33.
During an experiment, which factors are observed and measured?
a)
dependent variables
b)
independent variables 
c)
constants
d)
hypotheses
34.
All the chemical processes used to build up or break down materials are called an organism’s ___________
a)
metabolism.
b)
homeostasis.
c)
adaptations.
d)
stimuli.
35.

What is NOT true about a Negative Feedback Loop?

a)

moves a system further away from the target of equilibrium

b)

a reaction that causes a decrease in function

c)

causes the output of a system to be lessened

d)

tends to stabilize the system

36.

What is an example of Negative Feedback?

a)

Childbirth

b)

Fruit Ripening

c)

Blood Glucose Regulation

37.

What is TRUE about Positive Feedback?:

a)

causes a decrease in function

b)

moves a system further away from the target of equilibrium

c)

causes the output of a system to be lessened

38.

What is an example of Positive Feedback?

a)

Temperature Regulation

b)

Blood Glucose Regulation

c)

Fruit Ripening

39.

What are the two feedback loops that maintain homeostasis called?

a)

Positive and Negative

b)

Warm and Cold

c)

Reactive and Proactive

d)

Plus and Minus

40.

What is the role of a sensor (sometimes called a receptor) in helping an organism maintain homeostasis?

a)

Receives messages sent by the control center

b)

carries out a response to restore internal conditions

c)

detects stimuli and sends information to the control center

d)

compares current conditions with ideal values for those conditions

41.

Which of these does homeostasis most directly relate?

a)

Stability

b)

Evolution

c)

Scale and Structure

d)

Interacting systems

42.

Which of these is an example of a positive feedback loop?

a)

plants closing their stomata in response to water loss

b)

the removal of salt from a saltwater fish during osmoregulation

c)

the release of glucose by the liver in response to low blood sugar

d)

platelets stimulating the activation of more platelets during clotting

43.

On a hot day, which of these is an outward sign that thermoregulation is taking place?

a)

Sunburn

b)

Sweating

c)

Dry Mouth

d)

Slow Breathing

44.

The body’s internal environment must stay __________.

a)

exactly the same at all times

b)

the same as its external environment

c)

within narrow ranges that support human life

d)

away from sudden outside temperature changes

45.

What are the holes that are underneath a plants leaves?

a)

Holes

b)

Atamots

c)

Stomata

d)

Guard Cells

46.

Why is maintaining glucose concentrations important?

a)

Helps build stomach acid

b)

Supplies energy needed for cells to survive and grow

c)

Needed to regulate insulin

d)

Gives oxygen to muscle cells

47.

The long-term effects of a disruption of homeostasis include __________.

a)

the immune system’s taking control

b)

regulation of the internal environment

c)

establishment of feedback mechanisms

d)

destruction of organ systems

48.
All living organisms are made up of ____.
a)
Cells
b)
Bacteria
c)
Organs
d)
Tissue
49.
The tendency of an organism to maintain a balanced state in order to stay healthy.
a)
Stimuli
b)
Response
c)
Tropism
d)
Homestasis
50.
Organs and tissues that perform the same function is called _____________?
a)
cells
b)
tissues 
c)
organ system
d)
organs
51.
When many organ systems work together it can form...
a)
organ
b)
cells
c)
organ system
d)
organism 
52.
This is a example of ........
a)
cell
b)
organ system
c)
organ
d)
tissue
53.
The cell is the building block of all living things.
a)
True
b)
False
54.
What is the most basic unit of life?
a)
cell
b)
tissue
c)
organ
d)
organ system
55.
Homeostasis
a)
allows for a wildly fluctuating internal environment
b)
is impossible in vertebrates
c)
is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation
d)
is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation
56.
Homeostasis in the human body is often maintained by a: 
a)
neutral feedback loop 
b)
solar feedback loop
c)
positive feedback loop
d)
negative feedback loop
57.
Positive feedback is when the change caused by the stimulus is
a)
decreased
b)
non existant
c)
increased
d)
changes constantly
58.
When you are cold, you shiver and your blood vessels contract, which warms you up. When you are hot, you sweat and your blood vessels expand, which cools you down.  
a)
Positive Feedback Response
b)
Negative Feedback Loop 
59.

Which of the following is an example of positive feedback?

a)

Thermoregulation

b)

Blood Pressure

c)

Childbirth

d)

Blood Sugar Levels

60.
Homeostasis
a)
allows for a wildly fluctuating internal environment
b)
is impossible in vertebrates
c)
is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation
d)
is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation
61.
When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.
a)
Positive Feedback Response
b)
Negative Feedback Loop 
62.
Negative Feedback Loops:
a)
amplify processes
b)
prevent small changes from getting larger
c)
are initiated during childbirth
d)
are found only in plants
63.
Name the levels of organization in the human body in order from smallest to largest:
a)
Tissue, organ, organ system
b)
Organ system, tissue, organs, cells
c)
Cells, tissue, organs, organ system
d)
Cells , organs, tissue, organ system
64.

Your body temperature rises as you walk around outside in Bangladesh on a hot afternoon. The sensors in your skin detect the rise in your surface temperature so you start to sweat.

a)

Positive Feedback

b)

Negative Feedback

65.

Organelle . . .

a)

specialized structure within a cell that performs specific cellular functions.

b)

basic unit of life

c)

group of same cells.

d)

structure consisting of several different tissues to perform a specific function

66.

population

a)

a group of organs working together to perform a vital body function.

b)

a living thing

c)

same species interacting with each other

d)

all living things in a particular area.

67.

An experiment is done to test the effect on heart rate while running with different weights. In this experiment, heart rate is...

a)

Control group

b)

Experimental group

c)

Controlled variables

d)

Independent variable

e)

Dependent variable

68.

Your heart is a _____________.

a)

tube

b)

muscle

c)

vein

69.

What do red blood cells do?

a)

carry glucose from your lungs to the cells in your body

b)

carry starch from your lungs to the cells in your body

c)

carry oxygen from your lungs to the cells in your body

d)

carry amino acids from your lungs to the cells in your body

70.

more red blood cells can deliver more _____ to all cells.

a)

glucose

b)

amino acids

c)

fiber

d)

oxygen

71.

How does high altitude training work?

a)

less oxygen available producing more red blood cells

b)

more oxygen available producing more red blood cells

c)

more oxygen available producing less red blood cells

d)

less oxygen available producing less red blood cells

72.

In a positive feedback loop, each action creates a consequence that _____________________ the other action.

a)

decreases

b)

has no effect on

c)

amplifies

73.

In a negative feedback loop, each action creates a consequence that _____________________ the other action.

a)

decreases

b)

has no effect on

c)

amplifies

74.

Osmosis is the movement of _____ across a membrane.

a)

food

b)

oxygen

c)

energy

d)

water

75.

Which organelle contains its own DNA?

a)

Mitochondria

b)

Ribosomes

c)

Lysosomes

d)

Golgi Apparatus

76.

Which organelle sorts out mixtures of substances and sends them to their proper destinations?

a)

Mitochondria

b)

Ribosomes

c)

Lysosomes

d)

Golgi Apparatus

77.

A cell has the following molecules and structures: enzymes, DNA, ribosomes, plasma membrane, and mitochondria. It could be a cell from

a)

A bacterium

b)

An animal, but not a plant

c)

A plant, but not an animal

d)

A plant or an animal

78.

The ability of phospholipids to form membranes

a)

Depends on their secondary nature

b)

Depends on their amino acids

c)

Because they are awesome sauce

d)

Is related to their polar and nonpolar properties

79.

Which of the following would describe a positive feedback model?

a)

The response increases the stimulus

b)

It is a corrective measure

c)

The response decreases the stimulus

d)

The response will return the body to normal conditions

80.

Which of the following systems is most closely involved in the direct function of the muscular system?

a)

excretory

b)

nervous

c)

digestive

d)

immune

81.

What is the effect of vasoconstriction (decreases the diameter of blood vessels) on thermoregulation?

a)

decreases blood sugar levels decreasing body temperature

b)

decreases blood flow to the skin helping to conserve heat (increases temp)

c)

increases blood sugar levels increasing body temperature

d)

increases blood flow to the skin increasing heat loss (lowers temp)

82.

This diagram represents which of the following?

a)

Negative feedback loop

b)

Positive feedback loop

c)

Enhancement feedback loop

d)

Extreme feedback loop

83.

Diffusion is

a)

movement of molecules from area of low concentration to high concentration.

b)

movement of molecules from areas of low concentration to high concentration using ATP

c)

movement of molecules using protein pumps

d)

movement of molecules from an area of high concentration to low concentration.

84.

Eukaryotic cell membranes are composed primarily of

a)

proteins

b)

silicone

c)

deoxyribonucleic acid

d)

phospholipids

85.

What is an effector in the mechanism of thermoregulation? (Select all that apply)

a)

the brain

b)

the hypothalamus

c)

the sweat glands

d)

muscles shivering

86.

Prior to childbirth the baby's head presses on the cervix sending a signal to the brain which stimulates the pituitary gland to release oxytocin. The oxytocin increases contraction of the uterus with causes the baby's head to press even harder on the cervix causing the release of more oxytocin. Which feedback loop does this illustrate?

a)

Positive feedback

b)

Negative feedback

c)

Neither

d)

Both

87.

which type of feedback is illustrated by this graph?

a)

Negative feedback loop

b)

Positive feedback loop

c)

Enhancement feedback loop

d)

None of these.

88.

Which organ system defends the body from invading microorganisms and viruses?

a)

muscular system

b)

nervous system

c)

immune system

d)

endocrine system

89.
a)
Pulmonary veins
b)
Pulmonary artery
c)
Aorta
d)
Vena cava
90.
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
91.
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
92.
When blood enters the right atrium, where is it coming from?
a)
The body
b)
Left ventricle
c)
Right Atrium
d)
Lungs
93.
What chamber pumps blood to the body?
a)
Right atrium
b)
Right ventricle
c)
Left atrium
d)
Left ventricle 
94.
A flap of tissue that prevents blood from flowing backward
a)
Aorta
b)
Atrium
c)
Septum
d)
Valve
95.
Which side of the heart has oxygen rich blood?
a)
Left Side
b)
Right Side
96.
Name this part.
a)
Right ventricle
b)
Aorta
c)
Right atrium
d)
Atrium
97.
______ carry blood to the heart.
a)
Arteries
b)
Veins
c)
Capillaries
d)
Vena Cava
98.

Of the four chambers, which one carries deoxygenated blood?

a)

F and J

b)

F and A

c)

A and G

d)

J and G

99.

Prevention of backflow is the function of the

a)

pulmonary arteries

b)

valves

c)

septums

d)

vena cava

100.

Which of the following body systems work together for support, protection, and movement?

a)

respiratory and cardiovascular

b)

skeletal and muscular

c)

skeletal and integumentary

d)

digestive and respiratory

101.

These carry blood away from the heart.

a)

arteries

b)

nerves

c)

veins

d)

capillaries

102.

This artery is the only artery in the body to carry deoxygenated blood:

a)

Aorta

b)

Pulmonary Artery

c)

Coronary Arteries

d)

Hepatic Arteries

103.

Oxygenated blood from the lungs re-enters this chamber:

a)

Right atrium

b)

Right ventricle

c)

Left atrium

d)

Left ventricle

104.

The only veins in the body that carry oxygenated blood are the:

a)

Vena Cava

b)

Pulmonary Veins

c)

Pulmonary Arteries

d)

Venules

105.

Number 1 is:

a)

an artery

b)

a vein

c)

capillaries

106.
What is responsible for delivering oxygen and removing carbon dioxide from the body?
a)
cell nucleus
b)
excretory system
c)
nervous tissue
d)
respiratory system
107.
Arteries carry blood ______ from the heart.
a)
Away
b)
To
c)
Across
d)
Around
108.
The air I breathe in goes down my trachea to my ______?
a)
Heart
b)
Lungs
c)
Brain
d)
Stomach
109.
When you breathe, your lungs take in ___ and remove ___. 
a)
air/oxygen
b)
oxygen/carbon dioxide 
c)
carbon dioxide/waste 
d)
waste/air 
110.

How many chambers does the mammalian heart have?

a)

2

b)

1

c)

4

d)

3

111.

Which blood vessels are small and thin enough to allow for the diffusion of gases and nutrients into and out of circulation?

a)

Capillaries

b)

Venules

c)

Arterioles

d)

Veins

112.

Choose the correct sequence of blood flow

a)

L. Atrium, Pulmonary Vein, R. Atrium, Aorta

b)

R. Atrium, Pulmonary Vein, Aorta, Vena Cava

c)

R. Ventricle, R. Atrium, Pulmonary Artery, Aorta

d)

L. Ventricle, Vena Cava, L. Atrium, Aorta

113.

__________ Must be strong and elastic in order to withstand higher blood pressure leaving the heart's ventricles.

a)

Arteries

b)

Capillaries

c)

Veins

d)

Venules

114.

Which respiratory structure comes in direct contact with the circulatory system as Carbon Dioxide gas diffuses out of the body and Oxygen diffuses in?

a)

diaphragm

b)

bronchioles

c)

Alveoli

d)

bronchi

115.

Blood vessels that return blood to the heart

a)

Arterioles

b)

Arteries

c)

Venules

d)

Veins

e)

Capillaries

116.

Oxygen and carbon dioxide are transported between the blood and alveoli by way of

a)

exocytosis and endocytosis by endothelial cells

b)

diffusion from areas of higher concentration to lower concentration

c)

pinocytosis using fluid-filled vesicles

d)

active transport (using ATP) by protein carriers of endothelial cells

117.

I have a large lumen, I have thin muscular walls.

a)

Artery

b)

Vein

c)

Capillary

d)

Arteriole

118.

I have a small lumen, I have thick muscular walls.

a)

Artery

b)

Vein

c)

Capillary

d)

Arteriole

119.

Which of the following levels of organization is inclusive of all others?

a)

Chemical

b)

Organ System

c)

Organ

d)

Cellular

120.

A group of cells that come together to perform a specific function is a

a)

cell

b)

tissue

c)

organism

d)

organ

121.

A group of tissues that come together to perform a specific function are a/an

a)

cell

b)

tissue

c)

organ system

d)

organ

122.

Which of the following is an example of an organ?

a)

Brain

b)

Tissue

c)

Human

d)

Dog

123.

The image could best be described as

a)

tissue

b)

organ

c)

organ system

d)

organism

124.

The image could best be described as

a)

tissue

b)

organ

c)

organ system

d)

organism

125.

The image could best be described as

a)

tissue

b)

organ

c)

organ system

d)

organism

126.

A group of organs that come together to perform a specific function is a/an

a)

organ

b)

organ system

c)

organism

d)

tissue

127.

A group of organ systems that come together to create a multi-cellular being is a/an

a)

organ

b)

organ system

c)

organism

d)

tissue

128.

Which of the following correctly lists the levels of biological organization from MOST complex to LEAST complex?

a)

cell, tissue, organ, organ system, organism

b)

cell organism organ system organ tissue

c)

organ system organism organ tissue cell

d)

organism organ system organ tissue cell

129.

Which of the following correctly lists the levels of biological organization from LEAST complex to MOST complex?

a)

cell, tissue, organ, organ system, organism

b)

cell organism organ system organ tissue

c)

organ system organism organ tissue cell

d)

organism organ system organ tissue cell

130.

Atom

a)

smallest unit of matter

b)

smallest unit of life

c)

group of 2 or more atoms joined by a covalent bonds.

d)

composed of only 1 type of atom

131.

Molecule . . .

a)

smallest unit of matter

b)

smallest unit of life

c)

group of 2 or more atoms joined by a covalent bonds.

d)

composed of only 1 type of atom

132.

Organelle . . .

a)

specialized structure within a cell that performs specific cellular functions.

b)

basic unit of life

c)

group of same cells.

d)

structure consisting of several different tissues to perform a specific function

133.

organism

a)

a group of organs working together to perform a vital body function.

b)

a living thing

c)

same species interacting with each other

d)

all living things in a particular area.

134.

What is the smallest level of organization that is still uniquely identifiable?

a)

species

b)

organism

c)

cell

d)

atom

135.

Organisms are USUALLY made up of what?

a)

Multiple cells working together

b)

Multiple organs working together

c)

Multiple tissues working together

d)

Multiple body systems working together

136.

A state of balance in the body.

a)

tissue

b)

organism

c)

cell

d)

homeostasis

137.

A collection of tissues that carry out a specialized function of the body.

a)

organ

b)

cell

c)

tissue

d)

multicellular

138.

A body tissue that carries an electrical message back and forth between the brain and other parts of the body.

a)

epithelial tissue

b)

nervous tissue

c)

connective tissue

d)

muscle tissue

139.

In our hierarchy of life, what comes first. It's the SMALLEST UNIT OF MATTER.

a)

Atom

b)

Electron

c)

Nucleus

d)

Biosphere

140.

This is when a lot of organisms of the same species come together.

a)

Biosphere

b)

Ecosystem

c)

Organs

d)

Population

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