🥇 Test- Unit 4 Biochemistry

What type of molecule consists of a long chain of carbon and hydrogen atoms?

• Protein

• Lipid

• Nucleic Acid

• Enzyme

The main function of carbohydrates is

• to provide quick energy

• to speed up chemical reactions

• to store backup energy

• to store genetic information

Enzymes affect the reactions in living cells by changing the

• speed of the reaction

• temperature of the reaction

• pH of the reaction

• products of the reaction

Which of the following biomolecules typically contains C, H, O, N, and P?

• Lipid

• Nucleic acid

• Protein

• Carbohydrate

In the demonstration performed in class, why did the boiled yeast NOT fizz and release oxygen?

• the enzyme catalase was denatured

• the temperature sped up the reaction too much to see the oxygen

• The enzyme was used up which prevent any further reactions.

• no oxygen in hydrogen peroxide to release

Tags

NGSS.HS-PS1-5

Which of the following is not an example of a carbohydrate?

• waxes

• celluloses

• sugars

• starches

Which of the following is not a characteristic of enzymes?

• they are proteins

• they react with a multiple substrate

• they are affected by changes in temperature

• they act as a catalyst

The most abundant molecule in most living things is

• carbon dioxide

• sodium chloride

• sugar

• water

Tags

NGSS.MS-ESS2-4

A long string of simple sugars hooked together is called a:

• polysaccharide

• polypeptide

• disaccharide

• monosaccharide

Which of the following macromolecules store energy, provide insulation, and assist in buoyancy?

• proteins

• nucleic acids

• lipids

• carbohydrates