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Science 8 REVIEWER

Authored by TEACHER KRISTIN

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8th Grade

Used 1+ times

Science 8 REVIEWER
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35 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the digestive system, there is a muscular organ that serves as a temporary storage area for food while also mixing it with digestive juices to begin breaking it down. Which organ performs this function?

Liver

Stomach

Pancreas

Gallbladder

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

As food moves through the digestive tract, it is pushed forward by a series of rhythmic, wave-like muscular contractions. What is the term used to describe this process?

Peristalsis

Segmentation

Diffusion

Osmosis

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The large intestine has the primary task of absorbing a specific substance from the remaining undigested food. Which substance is it?

Proteins

Water

Vitamins

Fats

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the digestive process, food is first broken down into smaller pieces through physical means before any chemical digestion occurs. In which part of the digestive system does this mechanical digestion begin?

Mouth

Stomach

Small intestine

Large intestine

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Saliva, which is produced in the mouth, contains an enzyme that begins breaking down a certain type of food molecule even before it reaches the stomach. Which type of food molecule is this?

Proteins

Carbohydrates

Fats

Vitamins

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The stomach produces gastric juice, a mixture that contains hydrochloric acid and digestive enzymes. What is the main purpose of the hydrochloric acid in this mixture?

To neutralize acids in food

To kill harmful bacteria and activate enzymes

To absorb nutrients

To lubricate food

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the stomach, the enzyme pepsin is active and functions under acidic conditions. Which type of nutrient is pepsin specifically responsible for breaking down?

Carbohydrates

Proteins

Fats

Minerals

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