18.1

18.1

9th Grade

9 Qs

quiz-placeholder

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18.1

18.1

Assessment

Quiz

Science

9th Grade

Hard

NGSS
HS-LS1-6, HS-LS1-1

Standards-aligned

Created by

Tracy Fender

Used 12+ times

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Metabolism is generally referred to as the chemical processes that allow the body to function. How do enzymes allow metabolic chemical reactions to proceed more quickly?

They convert carbohydrates into proteins during biochemical reactions.

They lower the activation energy of biochemical reactions.

They cause products of biochemical reaction to break down.

They decrease the amount of reactants needed for biochemical reactions.

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Hormones are proteins that regulate many functions in the body, such as growth and cell differentiation. Which of the following does NOT describe a function of proteins in living organisms?

They catalyze biochemical reactions

They provide support for connective tissues

They serve as a short-term energy source for the body

They carry molecules from one place to another in the body

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Carbohydrates are a type of biological macromolecules required to carry out life functions. Which of the following statements regarding carbohydrates is true?

They contain fatty acids and glycerol

They are made of monomers called amino acids

They are used by living things as the main source of energy

They are not used for structural support in living organisms

Tags

NGSS.HS-LS1-6

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Proteins are one of four classes of biological macromolecules. Which of the following statements about proteins is NOT correct?

Enzymes are specific types of proteins.

There are 20 different amino acids that make up proteins.

Peptide bonds form between amino acids in a dehydration reaction, creating proteins.

All R chains on the amino acids that make up proteins are polar and acidic

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How do enzymes speed up the rate of biological reactions?

Enzymes increase the activation energy of the reaction

Enzymes provide a site where reactants can be brought together

Enzymes become reactants and are used up in the chemical re

Enzymes change the temperature of the surroundings to be suitable for the reaction

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

What is the optimum pH range for this enzyme?

above 10

between 5 and 7

between 8 and 10

below 5

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Which molecule would most likely react with the enzyme?

A

B

C

D

8.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

What is the optimum temperature this enzyme works the best in?

20

26

38

50

9.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What type of macromolecule are enzymes?

Carbohydrates

Lipids

Proteins

Nucleic Acids

Tags

NGSS.HS-LS1-1