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Important Questions Test: Nutrition in Animals - Class 7 MCQ


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20 Questions MCQ Test Science Class 7 - Important Questions Test: Nutrition in Animals

Important Questions Test: Nutrition in Animals for Class 7 2024 is part of Science Class 7 preparation. The Important Questions Test: Nutrition in Animals questions and answers have been prepared according to the Class 7 exam syllabus.The Important Questions Test: Nutrition in Animals MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Important Questions Test: Nutrition in Animals below.
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Important Questions Test: Nutrition in Animals - Question 1

Human beings get how many sets of teeth in their lifetime? 

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 1

Humans beings get two sets of teeth in their lifetime, therefore called diphyodonts.
So, the correct answer is 'Two'

Important Questions Test: Nutrition in Animals - Question 2

Milk teeth falls off between the age of?

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 2

The first set of teeth grows during infancy and they fall off at the age between six to eight years. These are termed as milk teeth. Option C is correct.

Important Questions Test: Nutrition in Animals - Question 3

What is the length of highly coiled small intestine?

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 3

Small intestine is about 6.7 to 7.6 meters (25 feet) long, highly convoluted, and contained in the central and lower abdominal cavity. option A is correct.

Important Questions Test: Nutrition in Animals - Question 4

The tongue is a fleshy muscular organ attached at the back to the floor of the_______.

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 4

The tongue is a fleshy muscular organ attached at the back to the floor of the buccal cavity. Option B is correct.

Important Questions Test: Nutrition in Animals - Question 5

Which of the following is responsible for partial digestion in the mouth of ruminants?

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 5

Ruminants eat plant materials that contain cellulose. High intake of cellulose is responsible for partial digestion in the mouth. This partial digestion of cellulose is called cud. It is digested partially in the mouth by the process of regurgitation.
So the correct answer is 'High intake of cellulose'.

Important Questions Test: Nutrition in Animals - Question 6

Which are cutting teeth in humans?

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 6

The incisors are called cutting teeth because they present a sharp cutting edge, adapted for biting the food. They are eight in number, and form the four front teeth in each dental unit.
So, option B is the correct option.

Important Questions Test: Nutrition in Animals - Question 7

What is the primary organelle in Amoeba responsible for regulating its movement and maintaining its shape?

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 7

An amoeba, often called amoeboid, is a type of cell or organism which has the ability to alter its shape, primarily by extending and retracting pseudopods. Amoebas do not form a single taxonomic group; instead, they are found in every major lineage of eukaryotic organisms

Important Questions Test: Nutrition in Animals - Question 8

Cellulose digestion in ruminants occurs in ________.

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 8

Cellulose digestion in ruminants like cattle occurs in the rumen or foregut that harbors bacteria that bring about breakdown of cellulose through fermentation. Here, mechanical digestion also occurs by converting ingested food into cud.
So, the correct answer is option B

Important Questions Test: Nutrition in Animals - Question 9

In digestion the unused parts of the food are________.

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 9

The unused parts of the food are defecated. Option B is correct

Important Questions Test: Nutrition in Animals - Question 10

 Where does the digestion of proteins begin in humans?

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 10

Answer: b) Stomach

Important Questions Test: Nutrition in Animals - Question 11

What is the primary purpose of digestion in our body?

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 11
  • Digestion in our body helps to break down the complex substances in the food we eat into simpler ones so that our body can use them easily. It's like when you eat a big piece of cake, digestion helps to change it into smaller pieces so your body can take the good parts and use them to make you strong and healthy.
Important Questions Test: Nutrition in Animals - Question 12

Food is taken into the body through the ______.

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 12

When we eat, food goes into our body through the mouth. We use our mouth to chew the food and then swallow it to go into our stomach.

Important Questions Test: Nutrition in Animals - Question 13

State whether the following statement is True or False

Animals get their food by eating plants or other animals.

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 13
  • Animals get their food by eating plants or other animals. This means animals can either directly eat plants or indirectly obtain their food by consuming animals that eat plants. It's like a big food chain where everyone eats something to survive.
  • For example, think about a cow. A cow eats grass (which is a plant), and then we might drink milk from the cow or eat beef from the cow, so indirectly, we are getting food from the grass the cow ate!
Important Questions Test: Nutrition in Animals - Question 14
Why should we clean our teeth after eating sweets and chocolates?
Detailed Solution for Important Questions Test: Nutrition in Animals - Question 14
We need to clean our teeth after eating sweets and chocolates to keep the harmful bacteria away. These bacteria can damage our teeth and cause tooth decay, leading to toothaches and sometimes even tooth loss. So, it's important to clean our teeth to protect them from harm.
Important Questions Test: Nutrition in Animals - Question 15

Harmful bacteria in our mouth cause _______.

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 15

Harmful bacteria in our mouth cause tooth decay, which can lead to severe toothache and, in extreme cases, tooth loss. Brushing teeth helps to prevent this problem.

Important Questions Test: Nutrition in Animals - Question 16

What is the function of the villi in the intestine?

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 16
  • The villi in the intestine help to increase the surface area for absorbing digested food. Imagine villi like tiny fingers inside your intestine that grab all the good stuff from your food as it passes by. This way, your body can take in all the healthy parts it needs to stay strong and grow big.
Important Questions Test: Nutrition in Animals - Question 17

The small intestine is about ______ metres long.

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 17

The small intestine is about 7.5 metres long. This means it is quite long, like a long rope! It helps in absorbing all the good stuff our body needs from the food we eat.

Important Questions Test: Nutrition in Animals - Question 18

State whether the following statement is True or False:

The stomach is shaped like a flattened J.

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 18
  • The stomach is indeed shaped like a flattened J. This shape helps the stomach hold and process the food we eat.
  • Just like how a bag holds things, the stomach holds the food we eat and starts to break it down so our bodies can use the nutrients.
  • So, it's like having a special bag inside us that helps us stay healthy and strong!
Important Questions Test: Nutrition in Animals - Question 19

Why do cows and buffaloes chew their food again after storing it in a part of their stomach?

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 19
  • Cows and buffaloes chew their food again because it helps them to digest their food better.
  • When they store their food in a part of their stomach called the rumen and then bring it back up to chew it again, it allows the food to be broken down more effectively so they can get all the nutrients they need to grow and stay healthy.
Important Questions Test: Nutrition in Animals - Question 20

Cows and buffaloes store partially digested food in a part of the stomach called ______.

Detailed Solution for Important Questions Test: Nutrition in Animals - Question 20

Cows and buffaloes store partially digested food in a part of the stomach called "Rumen." This helps in further digestion of their food.

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