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Nutrition in Animals Practice Questions

Class 7 · Science · 1149 free MCQs with instant results and detailed explanations.

1149
Total
359
Easy
561
Medium
229
Hard

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Topics in Nutrition in Animals

Digestion in Ruminants 361
Amoeba 388
Digestion in Humans 400

Sample Questions from Nutrition in Animals

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Q1
Easy
What is the main function of the digestive system in humans?
A. To break down food
B. To circulate blood
C. To control hormones
D. To protect against infections
Show Answer & Explanation
Correct Answer: A
The main function of the digestive system is to break down food into smaller, absorbable components.
Q2
Easy
Which organ is primarily responsible for nutrient absorption in humans?
A. Stomach
B. Small intestine
C. Large intestine
D. Liver
Show Answer & Explanation
Correct Answer: B
The small intestine is where most nutrient absorption occurs due to its extensive surface area.
Q3
Easy
What enzyme is secreted by the salivary glands to begin the digestion of carbohydrates?
A. Pepsin
B. Amylase
C. Lipase
D. Trypsin
Show Answer & Explanation
Correct Answer: B
Amylase is the enzyme that begins the breakdown of carbohydrates in the mouth.
Q4
Medium
What is the main function of saliva in the digestive process?
A. Absorbs nutrients
B. Breaks down fats
C. Initiates the digestion of carbohydrates
D. Regulates stomach acid
Show Answer & Explanation
Correct Answer: C
Saliva contains enzymes like amylase that begin the digestion of carbohydrates in the mouth.
Q5
Medium
Which organ secretes bile to help digest fats?
A. Pancreas
B. Liver
C. Gallbladder
D. Stomach
Show Answer & Explanation
Correct Answer: B
The liver produces bile, which is stored in the gallbladder and released into the small intestine to emulsify fats.
Q6
Medium
What is the process called when food is converted into simpler forms by digestive enzymes?
A. Ingestion
B. Absorption
C. Digestion
D. Egestion
Show Answer & Explanation
Correct Answer: C
Digestion is the process of breaking down food into simpler molecules that can be absorbed.
Q7
Medium
What is the role of the pancreas in digestion?
A. Produces bile
B. Secretes digestive enzymes
C. Absorbs nutrients
D. Stores food
Show Answer & Explanation
Correct Answer: B
The pancreas produces digestive enzymes that break down carbohydrates, proteins, and fats in the small intestine.
Q8
Hard
Which of the following organs is primarily responsible for nutrient absorption in humans?
A. Stomach
B. Small Intestine
C. Large Intestine
D. Pancreas
Show Answer & Explanation
Correct Answer: B
The small intestine is specifically designed for the absorption of nutrients due to its large surface area and villi.
Q9
Hard
If a person consumed a meal high in carbohydrates, which enzyme would play the most significant role in digesting that meal?
A. Protease
B. Amylase
C. Lipase
D. Cellulase
Show Answer & Explanation
Correct Answer: B
Amylase is the enzyme that breaks down carbohydrates into sugars, crucial for digesting a carbohydrate-rich meal.
Q10
Hard
During digestion, which of the following processes mainly occurs in the stomach?
A. Nutrient absorption
B. Chemical breakdown of proteins
C. Emulsification of fats
D. Absorption of water
Show Answer & Explanation
Correct Answer: B
The stomach is primarily involved in the chemical breakdown of proteins through gastric juices, including pepsin.

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Nutrition in Animals — Class 7 Science Practice Questions Online

This page contains 1149 practice MCQs for the chapter Nutrition in Animals in Class 7 Science. The questions are organized by difficulty — 359 easy, 561 medium, 229 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 3 topics, giving you comprehensive coverage of the entire chapter.