Macromolecules

Macromolecules

11th Grade

7 Qs

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Macromolecules

Macromolecules

Assessment

Quiz

Science, Biology

11th Grade

Medium

Created by

Heather Goss

Used 4+ times

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

As food travels through the digestive system, it is exposed to a variety of pH levels. The stomach has a pH of 2 due to the presence of hydrochloride acid (HCl), and the small intestine has a pH ranging from 7 to 9. HCl converts pepsinogen into pepsin, an enzyme that digests proteins in the stomach. Which of the following most likely happens to pepsin as it enters the small intestine?

A. It becomes inactive.

B. It begins to replicate.

C. It's shape changes to engulf large proteins.

D. It's activity increases to digest more proteins.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

You are analyzing a compound in the laboratory. You find that it is made up of carbon, hydrogen, and oxygen in a ratio of two hydrogen atoms for each carbon atom. How will you classify the compound?

A. lipid

B. protein

C. carbohydrate

D. nucleic acid

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fats, oils and cholesterol are all types of what?

A. cell membranes

B. hormones

C. lipids

D. fatty acids

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What will most likely happen if an appropriate enzyme is added to a chemical reaction?

A. The reaction rate will increase.

B. The equilibrium of the reaction will be maintained.

C. The reaction rate will decrease.

.

D. The reaction will stop.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A sugar, a phosphate group, and a nitrogen base form the building blocks of which organic compound?

A. carbohydrates

B. lipids

C. nucleic acids

D. proteins

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements?

A. Enzymes function best at a specific temperature.

B. The body needs to be warm to prevent hypothermia.

.

C. The body is kept relatively warm to prevent too much enzyme action.

D. There is no connection between the two statements.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The enzyme lactase will break down the sugar lactose into which of the following components?

A. monosaccharides

B. nucleic acids

C. amino acids

D. phospholipids