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Worksheets

Biomolecules

Total questions: 52

Worksheet time: 22mins

Name
Class
Date
1.

Maya is baking cookies and wants to understand what elements are present in the sugar she is using, which is a carbohydrate. What elements make up carbohydrates?

a)

carbon, hydrogen, oxygen

b)

carbon, nitrogen, hydrogen

c)

carbon, oxygen, sulfur

d)

carbon, hydrogen, nitrogen

2.

Aria is baking cookies and wants to understand what the basic building blocks of carbohydrates are. What is the monomer of carbohydrates?

a)

amino acids

b)

fatty acids

c)

monosaccharides

d)

nucleic acids

3.

Daniel is baking cookies and wants to use the simplest type of sugar possible. He reads that monosaccharides are made of _____ sugars. What number should he write down?

a)

0

b)

1

c)

2

d)

many

4.

Miracle is reading about different types of sugars in her biology class. She learns that lactose is a ________ sugar found in _____. What did Miracle discover?

a)

double; green plants

b)

triple; milk

c)

simple; fruit

d)

double; milk

5.

Abby is preparing for her biology exam and comes across a question: "What type of polysaccharide is starch in plants?" She needs to fill in the blanks: Starch is the _______ polysaccharide in _______.

a)

structural; plants

b)

storage; plants

c)

structural; animals

d)

storage; animals

6.

Nora is learning about different types of sugars in her biology class. She discovers that the simplest sugars are called what?

a)

monosaccharides

b)

disaccharides

c)

polycharides

7.

Abigail is helping her younger sister with a science project about plants. She explains that the strength of plant stems comes from a special material in their cell walls. What is the main component of the cell wall of plant cells that Abigail should mention?

a)

lignin

b)

cellulose

c)

pectin

d)

chitin

8.

After eating a big meal, Anika's body needs to store the extra carbohydrates for later use. In animal cells, how is this excess carbohydrate stored?

a)

starch

b)

glycogen

c)

fats

d)

glucose

9.

Mia is learning about the different sugars found in foods. She wants to know which sugar is found in milk. Which one should she choose?

a)

maltose

b)

galactose

c)

fructose

d)

sucrose

10.

Sophia is learning about healthy eating in her class. Her teacher asks her to identify which foods are sources of carbohydrates. Some carbohydrate foods are ________

a)

fruits

b)

grains

c)

vegetables

d)

all the above

11.

Kai is enjoying a fresh apple and wonders what simple sugar from the fruit gives it its sweet taste. The simple sugar from fruit is called_____.

a)

sucrose

b)

lactose

c)

fructose

d)

maltose

12.

Lily is studying for her biology exam and comes across the following diagram in her textbook. She wonders what type of carbohydrate is shown in the image. What type of carbohydrate is this?

a)

polysaccharide

b)

disaccharide

c)

monosaccharide

d)

it isn't a carbohydrate

13.

Elijah is preparing for a long hike and needs to choose foods that will help him have enough energy throughout the day. Which function of carbohydrates makes them a good choice for Elijah?

a)

Stores energy

b)

Movement

c)

Stores genetic information

d)

Speeds up reactions

14.

Sophia is looking at the structure of a molecule in her biology class, as shown in the image. She wants to know: this is an example of what macromolecule?

a)

disaccharide

b)

fat

c)

monosaccharide

d)

Lipid

15.

Mia is preparing a healthy meal and includes foods like bread, corn, potatoes, pasta, and oats. These are examples of

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

16.

Zoe is studying plants in her biology class. She learns that the strength of plant stems comes from a certain polysaccharide in their cell walls. What polysaccharide makes up plant cell walls?

a)

cellulose

b)

glycogen

c)

chitin

d)

starch

17.

Abigail is learning about different types of nutrients in her science class. Her teacher asks her, "What is the common name for carbohydrates?"

a)

sugars/starches

b)

proteins

c)

fats

d)

oils

18.

Emma is studying biology and wants to understand how cells pass on information from one generation to the next. Which of the following best describes the function of nucleic acids in this context?

a)

Perform cell's functions/tasks

b)

Fast energy

c)

Energy storage

d)

Alter other biomolecules

e)

Store genetic information for cells

19.

Bowhead whales can have a specialized layer of blubber up to 30 cm’s thick. This acts as a special insulation that traps the heat their muscles create from movement.


What biomolecule is the blubber primarily made of?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

20.

James is studying for his biology exam and comes across the following molecular structure in his textbook. He wonders which type of biomolecule it represents. Which biomolecule is this a picture of?

a)

Protein

b)

Nucleic Acid

c)

Lipid

d)

Carbohydrate

21.

Jack is studying for his biology exam and comes across this picture in his textbook. The hint says it is made of amino acids. Which biomolecule is Jack looking at?

a)

Proteins

b)

Nucleic Acids

c)

Lipids

d)

Carbohydrates

22.

Emma is learning about the molecules that make up living things in her biology class. She discovers that her DNA is made of a biomolecule built from nucleotides, and that this type of molecule carries genetic information. Which biomolecule is Emma studying?

a)

Carbohydrate

b)

Lipids

c)

Protein

d)

Nucleic Acid

23.

Lily is learning about different substances in her kitchen, like butter, cooking oil, and beeswax. She wonders which biomolecule group these fats, oils, and waxes belong to. Which group do they fall under?

a)

Proteins

b)

Nucleic Acid

c)

Lipids

d)

Carbohydrate

24.

Charlotte is building a model of DNA for her biology class. She wants to use the correct building block to represent a nucleic acid. Which of the following should she use?

a)

Monosaccharide

b)

Amino Acid

c)

Nucleotide

d)

Polysaccharide

25.

James is building a long chain using small identical building blocks. In science, ALL such large molecules (polymers) are made up of...

a)

monosaccharides

b)

monomers

c)

proteins

d)

None of these

26.

Charlotte is preparing for her biology exam and is reviewing a list of substances found in living organisms. She comes across the following items: Water, Nucleic Acid, Protein, and Lipid. Which of the following is NOT a biomolecule?

a)

Water

b)

Nucleic Acid

c)

Protein

d)

Lipid

27.

Grace is preparing a biology project about the building blocks of different biomolecules. She is currently focusing on lipids and needs to identify their monomer. Which of the following should Grace choose as the monomer for lipids?

a)

Monosaccarides

b)

glycerol and Fatty Acids

c)

Amino Acids

d)

Nucleotides

28.

Scarlett is baking a cake and wants to understand the building blocks of different nutrients. She wonders, what is the monomer for proteins?

a)

Monosaccarides

b)

Fatty Acids

c)

Amino Acids

d)

Nucleotides

29.

While studying biology, Anna learns that the structure of a cell membrane is crucial for its function. She wonders which type of lipid is primarily responsible for forming the cell membrane. Which type of lipid makes up cell membranes?

a)

Protein

b)

triglyerides

c)

phospholipids

d)

waxes

30.

Martha is learning about what makes up her genetic material in science class. Which biomolecule is responsible for making up her genes?

a)

Carbohydrate

b)

Lipid

c)

Nucleic Acid

d)

Protein

31.

Maya is learning about how the body breaks down food and comes across enzymes. She wonders, what type of biomolecule do enzymes belong to?

a)

Carbohydrate

b)

Lipid

c)

Nucleic Acid

d)

Protein

32.

Priya is baking cookies and adds a special ingredient that helps the dough rise much faster than usual. What is the purpose  of this special ingredient, which acts like an enzyme?

a)

give permission for the reaction

b)

raise activation energy

c)

speed up reactions

d)

control how many reactions occur

33.

Ethan is baking cookies and uses a special tool to help break down sugar faster. In the diagram, what does letter D represent in this real-world scenario?

a)

enzyme

b)

substrate

c)

enzyme-substrate complex

d)

active site

34.

Scarlett is baking cookies and uses a special cookie cutter (the blue shape) to cut dough (the yellow shape) into fun designs. The part of the cookie cutter where the dough fits perfectly is labeled C. What is this part called?

a)

active site

b)

enzymes

c)

substrate

d)

products

35.

Arjun accidentally spills some water on a table. He notices that the water forms droplets and does not spread out on the surface. What term best describes the property of the table's surface?

a)

Hydrophobic

b)

Hydrophilic 

c)

Hydroelectric 

d)

Hydroloric

36.

Abigail is studying a diagram of a cell membrane in her biology class. She wants to identify which labeled part represents the hydrophobic region of the cell membrane. Can you help her choose the correct label?

a)

E

b)

B

c)

C

d)

A 

37.

Scarlett is learning about cell membranes in her biology class. Her teacher asks her whether the heads of phospholipids are hydrophobic or hydrophilic. What should Scarlett answer?

a)

Hydrophobic

b)

Hydrophilic

38.

Graham is learning about DNA in her biology class. She discovers that in DNA, Adenine (A) always binds with which of the following?

a)

Adenine

b)

Thymine

c)

Cytosine

d)

Guanine

39.

Mary is studying insects and notices that their bodies are covered by a hard outer layer called an exoskeleton. She wonders which polysaccharide is used to build this exoskeleton. Which one is it?

a)

starch

b)

glycogen

c)

cellulose

d)

chitin

40.

Abigail is learning about nutrition and wants to know what type of fat is commonly found in meat and dairy products. What type of fat should she learn about?

a)

sucrose

b)

saturated fats

c)

unsaturated fats

d)

proteins

41.

Harper is looking at diagrams of different biological molecules in her science class. She notices that one of the nucleic acids is single stranded. Which nucleic acid is single stranded?

a)

DNA

b)

lipids

c)

starches

d)

RNA

42.

Jackson is learning about proteins in his biology class. His teacher asks him, "How many different amino acids are there that make up proteins in the human body?"

a)

4

b)

20

c)

30

d)

60

43.

Etta is baking cookies and uses a special cookie cutter that only works with dough pieces that are the right size and shape. This is similar to how enzymes are specific. This means that an enzyme only works with molecules that are....

a)

the right size and shape

b)

broken down already

c)

present in water

d)

too big for the body to handle

44.

Ava is learning about how enzymes work in her biology class. She looks at a diagram showing the process and sees that letter D is labeled on one of the shapes. What does letter D represent in the context of enzymes?

a)

enzyme

b)

active site

c)

substrate

d)

products

45.

Benjamin is baking cookies and wants to understand how enzymes work in his dough. He looks at a diagram showing how enzymes interact with other molecules. In the diagram, what does letter B represent?

a)

substrate

b)

active site

c)

enzyme

d)

products

46.

Sophia is learning about how enzymes work in her biology class. She looks at a diagram showing how a specific part of the enzyme fits perfectly with the substrate, allowing the reaction to happen. In the diagram, what does letter C represent?

a)

products

b)

substrate

c)

enzymes

d)

active site

47.

Abigail is cooking an egg and notices that after heating, the egg white changes texture and the proteins inside no longer work the same way. What happens to the enzyme in the egg when it is denatured?

a)

Activation energy is lowered

b)

It becomes stronger

c)

It loses its shape

d)

Activation energy is raised

48.

Jackson is conducting an experiment in his kitchen to learn about enzymes. He notices that when the temperature gets too high, the enzymes seem to stop working. He also reads that extreme pH can affect enzymes, and that enzymes help speed up chemical reactions. Which of these is NOT true about what Jackson is learning?

a)

Enzymes can denature (change shape) when the temperature gets too high.

b)

Enzymes can only be used once in a chemical reaction. 

c)

Extreme pH can denature enzymes.

d)

Enzymes speed up chemical reactions. 

49.

Luna is conducting an experiment in her biology class. She notices that the enzymes she is studying work best at a certain temperature and pH. Does this mean that every enzyme has an optimal temperature and pH? True or False?

a)

True 

b)

False

50.

Imagine Evelyn is trying to park her car in a reserved parking spot, but another car, which looks very similar to hers, quickly takes the spot before she can. What type of regulation is this similar to, where an inhibitor molecule is similar enough to a substrate to bind to the active site and simply block the substrate from binding?

a)

Noncompetitive inhibition

b)

Competitive inhibition

c)

Feedback inhibition

d)

Allosteric regulation

51.

A noncompetitive inhibitor may inhibit binding of a substrate to an enzyme by

a)

binding to the substrate.

b)

binding to the active site.

c)

lowering the activation energy.

d)

increasing the ΔG of the reaction.

e)

changing the shape of the active site.

52.

The structure shown here is ____. It fits into the macromolecule category lipids because

a)

Saturated Fat;

it dissolves in water

b)

Cholesterol; it does not dissolve in water

c)

Unsaturated fat; it has fatty acids tails

d)

Cellulose; it makes up starch