Mark ëTí if the statement is | Class 7 Science Chapter Nutrition in Animals, Nutrition in Animals NCERT Solutions

Question:

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)

Answer:

a) False

Carbohydrate digestion begins in the buccal cavity with the mechanical action of chewing and this contains several enzymes salivary analyse and lysozyme. Then digestion of carbohydrates continues in the stomach then in the small intestine which contains pancreatic (helps in starch hydrolization) and intestinal juice.

b) True

Enzymes in the saliva begins to digest complex food materials that is partly digested by salivary amylase. With the help of the tongue, the bolus is moved into the oesophagus by swallowing the food’ smaller pieces. Saliva contains mucus that moistens the food and also cleans the tongue. It also contains immunoglobulins and lysozymes that contains antibacterial action.

c) True

The gall bladder stores and secretes the bile juice in the duodenum and is stored in it until the food material reaches the stomach. Gall bladder contains natural mechanism to contract at the same time when the food material reaches the stomach.

d) True

The ruminants brings back swallowed grass to their mouth and chew this for some time. Grass contains cellulose and is a carbohydrate which can only be digested by ruminants because they have rumen. When they eat grass, it sent to the rumen where enzymes are present that acts on it and moisten it. Then it is sent back to the mouth from where ruminants chew it for sometimes.

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Here is a crossword puzzle: Good luck!

Across
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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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Welcome to the NCERT Solutions for Class 7 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 2: Mark ëTí if the statement is true and ëFí if it is false: (a) Digestion of ....

Mark ëTí if the statement is | Class 7 Science Chapter Nutrition in Animals, Nutrition in Animals NCERT Solutions

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