Biomolecules & Enzymes CFA Review

What is the function of a carbohydrate? Select TWO correct answers.

• immediate energy

• making chitin for fungi

• insulation

• long term energy storage

• building muscle

Tags

NGSS.MS-LS2-3

The four biomolecules are an important component in all living things. Complete the statement below by identifying the biomolecules being described. Choose the correct answer from each drop-down menu to complete the statement.

Lactose and glucose are examples of ​ (a)   , and provide us with quick energy. Nucleotides are the units that make up ​ (b)   , like DNA. Oils and fats are included in the biomolecule group​ ​ (c)   , and can provide long-term energy. Amino acids are the units that make up ​ (d)   , which are used for growth and repair.

• carbohydrates
• nucleic acids
• lipids
• proteins

Tags

NGSS.HS-LS1-6

There are four major biomolecules. Determine whether the descriptions below apply to carbohydrates, lipids, proteins, or nucleic acids. Select the correct answer in each row.

Groups:

(a) Carbohydrates

,

(b) Lipids

,

(c) Proteins

,

(d) Nucleic acids

• insoluble in water; waxes are examples

• fructose is an example

• helps make up the cell membrane

• building blocks are amino acids

• good source of quick energy

• contains your hereditary information

A phosphate group, a five-carbon sugar, and a nitrogen base are the building blocks of what biomolecule (organic compound)? Select TWO correct answers.

• lipids

• DNA

• carbohydrates

• RNA

• proteins

Which of these statements are true of macromolecules? Select TWO correct answers.

• Lipids are made of fatty acids and provide us with a quick energy source.

• Proteins are made of smaller units called amino acids.

• Simple sugars, like glucose, are a good example of polysaccharides.

• Proteins are made of smaller units called nucleotides.

• Lipid molecules help make up the double layer of the cell membrane.

Tags

NGSS.HS-LS1-6

Complete the statements below by choosing the correct biomolecule.

Biomolecules are substances that are produced by cells that have a variety of functions in our bodies.

​ (a)   , such as glucose, provide us with a quick energy source.

​ (b)   , which include fats, store energy that can be broken down to yield large amounts of energy.

​ (c)   , which are composed of amino acids, help with muscle growth and repair.

​ (d)   , which include DNA and RNA, play a major role in the storage and expression of genetic

information.

• Carbohydrates
• Lipids
• Proteins
• Nucleic acids

Tags

NGSS.HS-LS3-1

Macromolecules which are both hydrophobic and hydrophilic and are a major component of cell membranes are –

• polysaccharides

• proteins

• phospholipids

• inorganic

Which of the following is not a lipid?

• steroid

• cholesterol

• wax

• cellulose

Which of these will most likely happen if an enzyme is added to a certain chemical reaction? Select TWO correct answers.

• The rate of reaction will decrease.

• The reaction will completely stop.

• The rate of reaction may speed up or may slow down.

• The activation energy will be lowered.

• The rate of reaction will start to increase.

Tags

NGSS.HS-PS1-4

A chemical reaction can be sped up when our bodies use a substance called a(n) ​ (a)   . These help lower the ​ (b)   needed to start the ​ (c)   .

• substrate
• enzyme
• activation energy
• reaction

Tags

NGSS.HS-PS1-4