Nutrients and Digestion Practice Flashcard

Front

What is the chemical composition of a glucose molecule?

Back

A glucose molecule is composed of carbon (C), hydrogen (H), and oxygen (O) in a 1:2:1 ratio.

Tags

NGSS.MS-PS1-1

Front

What happens to enzyme activity as temperature rises beyond body temperature?

Back

As temperature rises beyond body temperature, the rate of reaction does not continue to increase; instead, enzyme activity may decrease due to denaturation.

Front

Where does mechanical digestion occur in the human body?

Back

Mechanical digestion takes place in the mouth and stomach.

Front

What is the role of bile in digestion?

Back

Bile is responsible for the digestion of lipids (fats) by emulsifying them.

Front

What defines a non-essential amino acid?

Back

A non-essential amino acid is one that can be synthesized by the body.

Tags

NGSS.HS-LS1-6

Front

What are the primary functions of enzymes in digestion?

Back

Enzymes speed up chemical reactions, lower activation energy, and facilitate the breakdown of food into absorbable nutrients.

Tags

NGSS.MS-LS1-7

Front

What is the difference between essential and non-essential amino acids?

Back

Essential amino acids cannot be synthesized by the body and must be obtained from the diet, while non-essential amino acids can be made by the body.

Front

What is the significance of the 1:2:1 ratio in carbohydrates?

Back

The 1:2:1 ratio in carbohydrates indicates the proportion of carbon, hydrogen, and oxygen atoms, which is characteristic of simple sugars like glucose.

Front

How does temperature affect enzyme activity?

Back

Enzyme activity typically increases with temperature up to a certain point, after which high temperatures can lead to denaturation and decreased activity.

Tags

NGSS.MS-LS1-5

Front

What is the function of mechanical digestion?

Back

Mechanical digestion breaks down food into smaller pieces to increase surface area for enzymes to act upon.