Digestion & Enzymes Flashcard Yr 9 Biology

Front

What is digestion?

Back

Digestion is the process by which food is broken down into smaller, absorbable components, allowing nutrients to be absorbed by the body.

Front

What are enzymes?

Back

Enzymes are biological catalysts that speed up chemical reactions in the body, including the breakdown of food during digestion.

Front

What is the role of bile in digestion?

Back

Bile helps emulsify fats, making them easier to digest and absorb, but it does not contain digestive enzymes.

Front

What is amylase and what does it do?

Back

Amylase is an enzyme that breaks down starch into sugars, primarily functioning in the mouth and small intestine.

Front

What are the main types of teeth in humans?

Back

The main types of teeth are incisors (cutting), canines (tearing), premolars (grinding), and molars (crushing).

Front

What is a villus?

Back

A villus is a small, finger-like projection in the small intestine that increases surface area for nutrient absorption.

Front

What is the function of gastric juice?

Back

Gastric juice contains hydrochloric acid and digestive enzymes that help break down food in the stomach.

Front

What is the difference between soluble and insoluble substances in digestion?

Back

Soluble substances can be absorbed directly into the bloodstream, while insoluble substances need to be digested before absorption.

Front

What is the primary function of the small intestine?

Back

The primary function of the small intestine is to absorb nutrients from digested food into the bloodstream.

Front

What is the role of pancreatic juice in digestion?

Back

Pancreatic juice contains digestive enzymes that help break down carbohydrates, proteins, and fats in the small intestine.