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Worksheets

Midterm 1 Spring 2024

Total questions: 50

Worksheet time: 1hrs 12mins

Name
Class
Date
1.

What is the best explanation for why a person shivers when their body temperature is “too cold”?

a)

The shivering is caused by increased water reabsorption by the kidneys that raises the body’s temperature.

b)

The shivering is caused by an increase in muscle contractions that release energy maintaining homeostasis.

c)

The shivering is caused by an increase in insulin production that raises the body’s temperature.

d)

The shivering is caused by a decrease in the blood’s pH level that raises the body’s temperature.

2.

A contractile vacuole helps protists eliminate excess liquid. This is a “pumping" process which reduces pressure inside the cell and prevents the cell from bursting. What is most likely the source of energy for this process?

a)

DNA

b)

Lipids

c)

ATP

d)

Ribosomes

3.

Cells in your intestinal lining have a higher concentration of sodium than your food. How do they acquire the additional sodium they need?

a)

Osmosis

b)

Diffusion

c)

Active Transport

d)

Passive Transport

4.
Which choice correctly shows the gases that enter and exit plants during photosynthesis?
a)

Enter: Oxygen Exit: Carbon dioxide

b)

Enter: Water vapor Exit: Glucose

c)

Enter: Carbon dioxide Exit: Oxygen

d)

Enter: Light Exit: Water vapor

5.

Which of these is the correct equation for photosynthesis?

a)

6O2 + C6H12O6 --> 6CO2 + 6H2O

b)

6O2 + 6CO2 --> C6H12O6 + 6H2O

c)

6CO2 + 12H2O --> C6H12O6 + 6H2O + 6O2

d)

6CO2 + 6H2O --> 6O2 + C6H12O6

6.

Which of these are limiting factors for photosynthesis? Choose 3 answers.

a)

Light intensity

b)

CO2 concentration

c)

Temperature

d)

O2 levels

7.

The ___ is the cell part (organelle) inside cells where cellular respiration happens.

a)

mitochondria

b)

chloroplast

c)

nucleus

d)

ribosome

8.

Which of the following is the chemical equation for cellular respiration?

a)

C₆H₁₂O₆ + 6O₂ → ATP + 6CO₂ + 6H₂O

b)

CO₂ + H₂O → ATP + C₆H₁₂O₆ + O₂

c)

C₆H₁₂O₆ + H₂O → ATP + CO₂ + O₂

d)

C₆H₁₂O₆ + CO₂ → ATP + H₂O + O₂

9.

Photosynthesis ​ (a)   energy as ​ (b)   . Whereas cellular respiration (c)   energy as ​ (d)  

Choose from the below words
Stores
Releases
Glucose
ATP
10.

Organize these options into the types of cellular respiration.

Categorize the following

Oxgyen

Without Oxygen

Mitochondia

2 ATP

36-38 ATP

Cytoplasm

Aerobic Respiration
Anaerobic Respiration
11.

This diagram shows a Paramecium, a unicellular protist. When a chemical is added to the pond water in which the Paramecium lives, the Paramecium stops moving. Which structure is most likely affected?

a)

1

b)

2

c)

3

d)

4

12.

How are flagella and cilia similar?

a)

They both aid in movement.

b)

They are both used for reproducing.

c)

They are both hair-like projections that are used for digestion.

d)

They are both used to shoot out trichocysts that paralyze potential prey.

13.

Match the following Unicellular image to its name

a)

1.

flagella

b)

2.

cilia

c)

3.

Pseduopod

14.

A contractile vacuole helps a protist remove excess water. This helps the cell

a)

maintain homeostasis.

b)

excrete food waste.

c)

obtain nutrition.

d)

grow and develop.

15.

Which structure is an adaptation for movement?

a)

Structure A

b)

Structure B

c)

Structure C

d)

Structure D

e)

Structure E

16.

Which statement best explains how sweating during exercise maintains homeostasis?

a)

It regulates mineral concentrations in cells.

b)

It regulates body temperature.

c)

It maintains water balance.

d)

It maintains sugar balance in cells.

17.

This diagram shows a red blood cell in a beaker that contains a solution with a higher salt concentration than that inside the red blood cell. What will happen to the red blood cell in this environment?

a)

The size of the red blood cell will remain constant.

b)

The red blood cell will swell at first and then shrink.

c)

The red blood cell will swell from absorbing salt molecules.

d)

The red blood cell will shrink from losing water molecules.

18.

Which process best represents a balance of glucose in the bloodstream maintained by insulin?

a)

Osmosis

b)

Adaptation

c)

Metabolism

d)

Homeostasis

19.

Which best illustrates active transport?

a)

Water molecules move into red blood cells placed in pure water causing them to swell and burst.

b)

Glucose molecules move into animal cells through membrane proteins from a region of higher concentration to a region of lower concentration.

c)

Sodium ions are pumped from a region of lower concentration to a region of higher concentration in the nerve cells of humans.

d)

Food coloring molecules spread out in a cup of water when a drop of dye is added to the solution.

20.

Match the following types of passive transport with the correct diagram.

a)
1.

Simple diffusion

b)
2.

Facilitated Diffusion

c)
3.

Osmosis

21.

Which purpose does a cell membrane play in eukaryotic cells?

a)

It digests waste.

b)

It maintains homeostasis.

c)

It translates cellular proteins.

d)

It creates energy to fuel cell processes.

22.

Group the following into the correct type of transport.

Categorize the following

Endocytosis and exocytosis

Requires Energy

Osmosis

Does not require energy

Active Transport
Passive Transport
23.

Sort the following statements based on if the statement is talking about prokaryotes or eukaryotes

a)

more complex structure

b)

DNA is found in the nucleus

c)

DNA is found in the cell

d)

Unicellular organisms

e)

Ribosomes are found in the cell

1
2
3
4
5
1)
2)
3)
4)
5)
24.

Determine where the following organelles can be found (if the organelle can be found in more than one, place in the middle of the two columns).

a)

Cell Wall

b)

Chloroplast

c)

Golgi Body

d)

ER (endoplasmic reticulum)

e)

Nucleoid

1
2
3
4
5
1)
2)
3)
4)
5)
25.

Which cell structure identifies a cell as a eukaryotic cell.

a)

nucleoid

b)

mitochondria

c)

nucleus

d)

cell membrane

26.
The main difference between prokaryotic and eukaryotic cells? 
a)
Prokaryotic cells have a cell membrane but eukaryotic cells do not.
b)
Eukaryotic cells contain DNA in a nucleus while prokaryotic cells do not.
c)
Eukaryotic cells have flagella but prokaryotic cells do not.
d)
Prokaryotic cells contain membrane-bound ribosomes while eukaryotic cells do not. 
27.

All cells have the a cell membrane, cytoplasm, DNA, and _______

a)

Mitochondria

b)

Nucleus

c)

Ribosomes

d)

Cell Wall

28.

Which is true of prokaryotic and eukaryotic cells?

a)

Prokaryotic cells are larger than eukaryotic cells.

b)

Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.

c)

Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.

d)

Eukaryotic cells are simpler than prokaryotic cells.

29.

Which statement about the genes of specialized cells is true?

a)

Each specialized cell in an organism contains a different set of genes.

b)

All the specialized cells of an organism contain the exact same genes.

c)

The specialized cells of an organism contain half as many genes as its unspecialized cells.

d)

The specialized cells of an organism contain twice as many genes as its unspecialized cells.

30.

Liver and skin cells are specialized cells that are descended from the same set of stem cells. Why do these specialized cells vary in structure and function?

a)

Liver cells and skin cells receive different amounts of DNA. The additional DNA allows skin cells to develop pigment.

b)

Liver cells and skin cells receive different DNA. The DNA determines the structure and function of each cell.

c)

Liver cells and skin cells receive the same DNA. However, different sets of genes are activated in each cell.

d)

Liver cells and skin cells receive the same DNA. However, liver cells receive more DNA over time.

31.

Match the following organelles

a)

Nucleus

1.

Contains the codes & information for protein synthesis

b)

Rough ER

2.

Transports the proteins

c)

Golgi

3.

Packages the proteins

d)

Mitochodrion

4.

Supplies ATP to all organelles

e)

Ribosomes

5.

Synthesizes the proteins

32.

Which of the images below represents a chloroplast?

a)

b)

c)

d)

33.

Which of the images below represents the site of cellular respiration?

a)

b)

c)

d)

34.

What is one goal of cellular differentiation?

a)

To create many identical copies of cells.

b)

To make stem cells for use in the future.

c)

To make single-celled organisms.

d)

To make specialized cells to maintain homeostasis.

35.
Which best explains why muscle cells are different from blood cells?
a)
Muscle cells are produced by the brain, but blood cells are produced by the heart. 
b)
Different genes are activated in muscle cells than in blood cells. 
c)
Muscles cells experience different environmental influences than blood cells. 
d)
A mutation occurs during the development of muscle cells but not in blood cells. 
36.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
37.
Which of the following best explains why enzymes are necessary for many cellular reactions?
a)
Enzymes supply the oxygen necessary for the reactions
b)
 Enzymes change reactants from solid to liquids during the reactions.
c)
The reactions take up too much space in the cell if the enzymes are missing.
d)
The reactions are too slow to meet the needs of the cell if enzymes are missing. 
38.
What happens when enzymes are heated to a high temperature?
a)
The enzymes die.
b)
The shapes of the enzyme are altered denature
c)
The enzymes' amino acid sequence changes.
d)
The enzymes remain the same
39.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
40.
Question Image

Using the diagram, match the following.

a)

A

1.

Substrate

b)

B

2.

Enzyme

c)

C

3.

Active Site

d)

D

4.

Product

e)

E

5.

Enzyme Substrate Complex

41.

Which enzyme would you expect to find in bacteria growing in a hot environment?

a)

Enzyme X

b)

Enzyme Y

42.

When an amoeba eats, it does so by the process of endocytosis. What type of transport is this?

a)

Passive

b)

Active

c)

Facilitated

d)

Diffusion

43.

How does a cell use energy to maintain homeostasis?

a)

Energy is used to make carbohydrates.

b)

Energy is used to make ATP which can be used for diffusion of molecules across the cell membrane.

c)

Energy is used for active transport of molecules that drive specific cellular actions.

d)

Energy is used to repair the cell membrane.

44.
Energy is released from ATP when
a)
a phosphate group is added
b)
adenine bonds to ribose
c)
ATP is exposed to sunlight
d)
a phosphate group is removed
45.

Match the following monomer to its biomolecule.

a)

Carbohydrates

1.

Monosaccharide

b)

Proteins

2.

Amino acid

c)

Nucleic Acids

3.

Nucleotide

d)

Lipids

4.

Fatty acid

46.

This biomolecule can form many highly complex structures.  Some of the many functions include structural support, speed up chemical reactions, and cell membrane channels.

a)

carbohydrates

b)

proteins

c)

nucleic acids

d)

lipids

47.

All of the following are functions of proteins EXCEPT

a)

catalyze/speed up chemical reactions

b)

provide quick energy

c)

make up muscles, hair, and bones

d)

support the immune system

48.

Match the following would be a monomer structure to its biomolecule?

a)
1.

Protein

b)
2.

Carbohydrate

c)
3.

Lipid

d)
4.

Nucleic acid

49.

Match the following functions to the biomolecule

a)

Makes up cell membranes

1.

Lipid

b)

Build muscle

2.

Protein

c)

Carry genetic information

3.

Nucleic acid

d)

Energy source (cellular respiration)

4.

Carbohydrate

50.
The diagram shows the processes of photosynthesis and cellular respiration in relation to each other.  Which statement correctly describes the relationship between photosynthesis and cellular respiration? 
a)
The reactants and products of both processes are the same. 
b)
Photosynthesis and cellular respiration occur in all organisms. 
c)
Products of photosynthesis form the reactants for cellular respiration. 
d)
All ATP produced during photosynthesis is utilized during cellular respiration. 

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