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Nutrition in Animals
Match the items of Column I with suitable items in Column II Column I...

Match the items of Column I with suitabl | Class 7 Science Chapter Nutrition in Animals, Nutrition in Animals NCERT Solutions

Welcome to the NCERT Solutions for Class 7 Science - Chapter Nutrition in Animals. This page offers a step-by-step solution to the specific question from Exercise 1, Question 11: . With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 11:

Match the items of Column I with suitable items in Column II
Column I Column II
(a) Salivary gland (i) Bile juice secretion
(b) Stomach (ii) Storage of undigested food
(c) Liver (iii) Saliva secretion
(d) Rectum (iv) Acid release
(e) Small intestine (v) Digestion is completed
(f ) Large intestine (vi) Absorption of water
(vii) Release of faeces

Answer:

Column I Column II
(a) Salivary gland (iii) Saliva secretion
(b) Stomach (iv) Acid release
(c) Liver (i) Bile juice secretion
(d) Rectum (ii) Storage of undigested food
(e) Small intestine (v) Digestion is completed
(f ) Large intestine (vi) Absorption of water

1. Salivary glands: The salivary glands present in mammals are exocrine glands which produces saliva that contains salivary amylase enzyme through a system of ducts. Humans contain three paired major salivary glands (parotid, submandibular, and sublingual), a pair of seromucous tubarial glands and as well as various minor salivary glands.

2. Stomach: Stomach is a muscular organ located on the left side of the upper abdomen and it stomach receives food from the oesophagus through the buccal cavity. As food reaches the end of the oesophagus, it enters to the stomach which secretes acid and various enzymes that helps in the digestion of food.

3. Liver: The liver is the largest gland that only found in vertebrates which detoxifies various metabolites, synthesizes proteins and produces biochemical substances which are necessary for digestion and growth. In humans, it is located in the right upper part of the abdomen.

4. Rectum: The rectum is a chamber that starts at the end of the large intestine, immediately continues the sigmoid colon, and ends at the anus. The rectum is empty because stool is stored higher in the descending colon.

5. Small Intestine: The small intestine is an organ in gastrointestinal tract where most of the end of absorption of nutrients and minerals from food takes place. It is present between the stomach and large intestine, and it receives bile and pancreatic juice through the pancreatic duct for the digestion of complex substances.

6. Large Intestine: The large intestine is shorter than the small intestine and is the last part of the gastrointestinal tract and of the digestive system in vertebrates. Water is absorbed in the large intestine and the remaining waste material is stored as faeces before the elimination or by defecation.

7. Anus: The anus is the opening where the gastrointestinal tract ends and exits from the body. The anus starts at the bottom part of the rectum and is the last portion of the colon i.e. large intestine. The anorectal line helps in the separation of the anus from the rectum.

Other Questions of Chapter Nutrition in Animals

Can we survive only on raw, leafy vegetables/grass? Discuss.

Which part of the digestive canal is involved in:
(i) absorption of food ________________.
(ii) chewing of food ________________.
(iii) killing of bacteria ________________.
(iv) complete digestion of food ________________.
(v) formation of faeces ________________.

Why do we get instant energy from glucose?

What are villi? What is their location and function?

Fill in the blanks:
(a) The main steps of nutrition in humans are __________, __________, __________, _________ and __________.
(b) The largest gland in the human body is __________.
(c) The stomach releases hydrochloric acid and ___________ juices which act on food.
(d) The inner wall of the small intestine has many finger-like outgrowths called _________.
(e) Amoeba digests its food in the ____________ .

Tick (✓) mark the correct answer in each of the following:

(a) Fat is completely digested in the
(i) stomach (ii) mouth (iii) small intestine (iv) large intestine

(b) Water from the undigested food is absorbed mainly in the
(i) stomach (ii) foodpipe (iii) small intestine (iv) large intestine

Match the items of Column I with those given in Column II:
Column I Column II
Food components Product(s) of digestion
Carbohydrates Fatty acids and glycerol
Proteins Sugar
Fats Amino acids

Name the type of carbohydrate that can be digested by ruminants but not by humans. Give the reason also.

Where is the bile produced? Which component of the food does it help to digest?

Mark ëTí if the statement is true and ëFí if it is false:
(a) Digestion of starch starts in the stomach. (T/F)
(b) The tongue helps in mixing food with saliva. (T/F)
(c) The gall bladder temporarily stores bile. (T/F)
(d) The ruminants bring back swallowed grass into their mouth and chew it for some time. (T/F)

Popular questions of class 7 Science

Classify the changes involved in the following processes as physical or chemical changes:
(a) Photosynthesis
(b) Dissolving sugar in water
(c) Burning of coal
(d) Melting of wax
(e) Beating aluminium to make aluminium foil
(f ) Digestion of food

Here is a crossword puzzle: Good luck!

Across
3. Liquid waste products
4. Solid waste extracted in sewage treatment
6. A word related to hygiene
8. Waste matter discharged from human body

Down
1. Used water
2. A pipe carrying sewage
5. Micro-organisms which causes cholera
7. A chemical to disinfect water

Given below is a crossword puzzle based on this lesson. Use hints to fill in the blank spaces with letters that complete the words.
Down Across
(D) 1 : Thorough washing (A) 1 : Keeps warm
2 : Animal fibre 2 : Its leaves are eaten by silkworms
3 : Long thread like structure 3 : Hatches from egg of moth

Sketch the cross section of soil and label the various layers.

Solve the following crossword puzzle with the clues given:

Across
2. Plantation prevents it.
5. Use should be banned to avoid soil pollution.
6. Type of soil used for making pottery.
7. Living organism in the soil.

Down
1. In desert soil erosion occurs through.
3. Clay and loam are suitable for cereals like.
4. This type of soil can hold very little water.
5. Collective name for layers of soil.

Take three test-tubes. Fill æth of each with water. Label them A, B and C. Keep a snail in test-tube A, a water plant in test-tube B and in C, keep snail and plant both. Which test-tube would have the highest concentration of CO₂?

Sketch the reproductive parts of a flower.

Describe how crystals of copper sulphate are prepared.

Why does an athlete breathe faster and deeper than usual after finishing the race?

Match the following :
(i) Land breeze blows during (a) summer
(ii) Sea breeze blows during (b) winter
(iii) Dark coloured clothes are preferred during (c) day
(iv) Light coloured clothes are preferred during (d) night

Recently Viewed Questions of Class 7 Science

What are the components of blood?

Name the source from which litmus solution is obtained. What is the use of this solution?

Classify the following as motion along a straight line, circular or oscillatory motion:

(i) Motion of your hands while running.
(ii) Motion of a horse pulling a cart on a straight road.
(iii) Motion of a child in a merry-go-round.
(iv) Motion of a child on a see-saw.
(v) Motion of the hammer of an electric bell.
(vi) Motion of a train on a straight bridge.

Match the items given in Column I with those in Column II:
Column I Column II
Chlorophyll Bacteria
Nitrogen Heterotrophs
Amarbel Pitcher plant
Animals Leaf
Insects Parasite

How do elephant living in the tropical rainforest adapt itself?

Out of the following, which are the two terms related to silk production? Sericulture, floriculture, moriculture, apiculture and silviculture.

Hints:
(i) Silk production involves cultivation of mulberry leaves and rearing silkworms.
(ii) Scientific name of mulberry is Morus alba.

A simple pendulum takes 32 s to complete 20 oscillations. What is the time period of the pendulum?

Describe how crystals of copper sulphate are prepared.

The gas we use in the kitchen is called liquified petroleum gas (LPG). In the cylinder it exist as a liquid. When it comes out from the cylinder it
becomes a gas (Change – A) then it burns (Change – B). The following statements pertain to these changes. Choose the correct one.

(i) Process – A is a chemical change.
(ii) Process – B is a chemical change.
(iii) Both processes A and B are chemical changes.
(iv) None of these processes is a chemical change.

Is the distilled water acidic/basic/neutral? How would you verify it?

Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

Read the question carefully and focus on the core concept being asked.
Reference examples and data from the chapter when answering questions about Nutrition in Animals.
Review previous year question papers to get an idea of how such questions may be framed in exams.
Practice answering questions within the time limit to improve your speed and accuracy.
Discuss your answers with your teachers or peers to get feedback and improve your understanding.

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