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Selina solutions for Concise Biology Class 6 ICSE chapter 4 - Digestive System [Latest edition]

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Concise Biology Class 6 ICSE - Shaalaa.com
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Chapter 4: Digestive System

Review QuestionsReview QuestionsvLong Answer QuestionsAdditional Questions
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Review Questions

Selina solutions for Concise Biology Class 6 ICSE Chapter 4 Digestive SystemReview Questions

Review Questions | Q 1.1

Put a tick (✓) against the most appropriate alternative in the following statement.

The teeth which help in tearing the food are the:

  • Incisors

  • Canines

  • Premolars

  • Molars

Review Questions | Q 1.2

Put a tick (✓) against the most appropriate alternative in the following statement.

Last molar tooth in human beings is called:

  • Adult tooth

  • Wisdom tooth

  • Child tooth

  • Elders tooth

Review Questions | Q 1.3

Put a tick (✓) against the most appropriate alternative in the following statement.

The hardest substance in your body?

  • Dentine

  • Bone

  • Cement

  • Enamel

Review Questions | Q 1.4

Put a tick (✓) against the most appropriate alternative in the following statement.

Saliva converts starch into:

  • Glucose

  • Sucrose

  • Maltose

  • Lactose

Review Questions | Q 1.5

Put a tick (✓) against the most appropriate alternative in the following statement.

Proteins of the milk are converted into curd by the enzyme

  • Trypsin

  • Rennin

  • Pepsin

  • Steapsin

Review Questions | Q 1.6

Put a tick (✓) against the most appropriate alternative in the following statement.

Bile juice ¡s produced by

  • Stomach

  • Liver

  • Pancreas

  • Gall bladder

Review Questions, Review Questionsv

Selina solutions for Concise Biology Class 6 ICSE Chapter 4 Digestive SystemReview Questions, Review Questionsv

Review Questions | Q 1.1

Write True or False in the following statement

Molars help in cutting and tearing food.

  • True

  • False

Review Questions | Q 1.2

Write True or False in the following statement

Carbohydrates are digested into glucose

  • True

  • False

Review Questionsv | Q 1.3

Write True or False in the following statement

Proteins are digested into fatty acids.

  • True

  • False

Review Questions | Q 2.1

Fill in the blank.
The teeth called are a total of four in number on the sides of ________

Review Questions | Q 2.2

Fill in the blank.

The teeth called ______ are a total of four in number on the sides of incisors

Review Questions | Q 2.3

Fill in the blank.

The _______ is a common opening of food pipe and windpipe

Review Questions | Q 2.4

Fill in the blank.

Molars are meant for _____ the food.

Review Questions | Q 2.5

Fill in the blanks.

Incisors are used for _____ and _____ the food.

Review Questions | Q 2.6

Fill in the blank.

The _______ are used for tearing the food.

Review Questions | Q 2.7

Fill in the blanks.

The ______ and ______  are used for crushing and grinding the food.

Review Questions | Q 2.8

Fill in the blank.

In an adult human, there are a total of ___ teeth.

Review Questions | Q 2.9

Fill in the blank.

The human teeth appear in two sets, the first set is called primary which consists of only _______  teeth

Review Questions | Q 3.1

Name the following

End product of starch after digestion

Review Questions | Q 3.2

Name the following

The organ where protein digestion-begins

Review Questions | Q 3.3

Name the following

The organ into which the pancreatic juice and the bile juice are poured

Review Questions | Q 3.4

Name the following

The enzyme which digests fat

Review Questions | Q 3.5

Name the following

The simplest form of carbohydrates

Review Questions | Q 3.6

Name the following

The part of alimentary canal where water from undigested food is absorbed

Review Questions | Q 3.7

Name the following

The end-product of proteins after digestion

Review Questions | Q 4

Identify and name the four type of teeth shown below and give their functions

Review Questions | Q 5.1

State whether the following statement is True or False.

Wisdom tooth appears at the age of 5-6 years when the child starts going to school.

  • True

  • False

Review Questions | Q 5.2

State whether the following statement is True or False.

The temporary set of teeth includes incisors, canines, and premolars only.

  • True

  • False

Review Questions | Q 5.3

State whether the following statement is True or False.

The ducts from the salivary glands open into the duodenum.

  • True

  • False

Review Questions | Q 5.4

State whether the following statement is True or False.

Saliva changes starch into maltose.

  • True

  • False

Review Questions | Q 6

Fill in the blanks in the table (1-5) by selecting the suitable names of substances from the list given below:
(steapsin, peptones, fatty acids, proteoses, protein).

Digestive Enzymes Acts on To convert into
(i) Pepsin _________(2) ________(3) and
(ii) _______(1) Fats

________(4)

_________(5)

Review Questions | Q 7.1

Name the juice secreted by the liver.

Review Questions | Q 7.2

Name the organ where the juice bile is temporarily stored.

Review Questions | Q 7.3

What is the main function of bile?

Review Questions | Q 8

Name the three enzymes found in pancreatic juice.
(i)____ (ii)____ (iii)_____

Review Questions | Q 9

Name the three regions of the large intestine.

Review Questions | Q 10

Given alongside is the diagram of the human alimentary canal.
(i) Name the parts 1-11 indicated by guidelines.
1.____ 2.____ 3.____ 4.____ 5.____ 6.____ 7.____ 8.____ 9.____ 10.___ 11.____
(ii) State the function of the juice secreted by the part 1.
(iii) State the function of the three enzymes found in the juice secreted by part 3.

Long Answer Questions

Selina solutions for Concise Biology Class 6 ICSE Chapter 4 Digestive SystemLong Answer Questions

Long Answer Questions | Q 1

Define the term nutrition.

Long Answer Questions | Q 2

What is the role of the liver and the pancreas respectively in the digestion of food?

Long Answer Questions | Q 3

Name the digestive juice secreted by the stomach and give its function.

Long Answer Questions | Q 4.1

Name the types of teeth seen in humans.

Long Answer Questions | Q 4.2

How is the small intestine best suited for the digestion and absorption of food?

Long Answer Questions | Q 4.3

What do you mean by the absorption of food?

Long Answer Questions | Q 5.1

Define the following term:

Egestion

Long Answer Questions | Q 5.2

Define the following term:

Digestion

Long Answer Questions | Q 5.3

Define the following term:

assimilation

Long Answer Questions | Q 6

Rewrite the following parts of the human alimentary canal in their correct sequence Stomach, Oesophagus, Large instestine, Small intestine, Pharynx.

Long Answer Questions | Q 7

What is the fate of excess glucose in our body?

Long Answer Questions | Q 8

Define the term ‘digestion’.

Long Answer Questions | Q 9

State the four ways in which saliva is useful to us.

Long Answer Questions | Q 10

Food are classified into three groups on the basis of the function they perform in our body. Name the three categories, and briefly give their functions. Also give their two sources each.

Additional Questions

Selina solutions for Concise Biology Class 6 ICSE Chapter 4 Digestive SystemAdditional Questions

Additional Questions | Q 1

Fill in the blanks.

Grinding of food is brought about by _______ and ______

Additional Questions | Q 2

Fill in the blank.

Steapsin is also called _________

Additional Questions | Q 3

Fill in the blank.

Saliva contains salivary amylase which changes starch to _____.

Additional Questions | Q 4

Fill in the blank.

Peristalsis is caused by _____________________________.

Additional Questions | Q 5

Fill in the blanks.

Pepsin acts on ________ to change them into _______ and __________.

Additional Questions | Q 6

Fill in the blanks.

______ and ______ help in digestion but food does not pass through them.

Additional Questions | Q 7

Fill in the blanks.

Removal of undigested food is called ________.

Additional Questions

Selina solutions for Concise Biology Class 6 ICSE Chapter 4 Digestive SystemAdditional Questions

Additional Questions | Q 1

Write true or false for the below statement. Rewrite the false statements correctly.

The process of taking in food is called assimilation

  • True

  • False

Additional Questions | Q 2

Write true or false for the below statement. Rewrite the false statements correctly.

The pancreas secretes bile juice

  • False

  • True

Additional Questions | Q 3

Write true or false for the below statement. Rewrite the false statements correctly

Pancreatic juice does not contain any enzyme.

  • True

  • False

Additional Questions | Q 4

Write true or false for the below statement. Rewrite the false statements correctly.

Saliva contains lipase which digests carbohydrates

  • True

  • False

Additional Questions | Q 5

Write true or false for the below statement. Rewrite the false statements correctly.

The wave-like motion of stomach muscles to push the food is called peristalsis.

  • True

  • False

Additional Questions | Q 6

Write true or false for the below statement. Rewrite the false statements correctly.

Digestion of food in the intestine takes place in the presence of dilute hydrochloric acid.

  • True

  • False

Additional Questions | Q 7

Write true or false for the below statement. Rewrite the false statements correctly.

Absorption of food takes place in small intestine

  • True

  • False

Additional Questions | Q 8

Write true or false for the below statement. Rewrite the false statements correctly.

Water is absorbed in large intestine

  • True

  • False

Additional Questions | Q 9

Write true or false for the below statement. Rewrite the false statements correctly.

The removal of faeces through the anus is called excretion.

  • True

  • False

Additional Questions | Q 10

Write true or false for the below statement. Rewrite the false statements correctly.

All the absorbed nutrients are immediately required by the body.

  • True

  • False

Additional Questions

Selina solutions for Concise Biology Class 6 ICSE Chapter 4 Digestive SystemAdditional Questions

Additional Questions | Q 1

Put the following processes in their correct sequence of occurrence during digestion.
peristalsis; tongue pushes the food; grinding and mixing saliva; cutting and tearing of food

Additional Questions

Selina solutions for Concise Biology Class 6 ICSE Chapter 4 Digestive SystemAdditional Questions

Additional Questions | Q 1

Find the odd one out. Give reasons for your choice

  • Oesophagus

  • gizzard,

  • small intestine

  • liver.

Additional Questions | Q 2

Find the odd one out. Give reasons for your choice.

  • canines

  • incisors

  • saliva

  • premolars.

Additional Questions | Q 3

Find the odd one out. Give reasons for your choice.

  • Salivary amylase

  • pepsin,

  • trypsin

  • erepsin

Additional Questions | Q 4

Find the odd one out. Give reasons for your choice.

  • Lactase

  • maltase

  • lipase

  • sucrase

Additional Questions

Selina solutions for Concise Biology Class 6 ICSE Chapter 4 Digestive SystemAdditional Questions

Additional Questions | Q 1

Give reasons for the following.

Meat eating animals have strong canines.

Additional Questions | Q 2

Give reasons for the following:

All teeth in the mouth are not alike.

Additional Questions

Selina solutions for Concise Biology Class 6 ICSE Chapter 4 Digestive SystemAdditional Questions

Additional Questions | Q 1

Differentiate between

Digestion and Absorption

Additional Questions | Q 2

Differentiate between.

Mechanical digestion and Chemical digestion

Additional Questions | Q 3

Differentiate between

Small intestine and Large intestine

Additional Questions

Selina solutions for Concise Biology Class 6 ICSE Chapter 4 Digestive SystemAdditional Questions

Additional Questions | Q 1

Write short answers

What is ingestion?

Additional Questions | Q 2

Write short answers

What is dental plaque?

Additional Questions | Q 3

Write short answers

Define homodont dentition.

Additional Questions | Q 4

Write short answers

What is peristalsis?

Additional Questions | Q 5

Write short answers

What do you mean by the emulsification of fat?

Additional Questions | Q 6

Write short answers

Write the names of three enzymes which are found in pancreatic juice.

Additional Questions

Selina solutions for Concise Biology Class 6 ICSE Chapter 4 Digestive SystemAdditional Questions

Additional Questions | Q 1

Complete the following enzymatic reaction.

Proteins \[\ce{->[pepsin]}\] ___________+__________

Additional Questions | Q 2

Complete the following enzymatic reaction.

Fats \[\ce{->[lipase]}\] ___________+__________

Additional Questions | Q 3

Complete the following enzymatic reaction.

Maltose \[\ce{->[maltase]}\] ___________

Additional Questions | Q 4

Complete the following enzymatic reaction.

Sucrose  \[\ce{->[sucrase]}\] ___________+ __________

Additional Questions

Selina solutions for Concise Biology Class 6 ICSE Chapter 4 Digestive SystemAdditional Questions

Additional Questions | Q 1

Answer in detail.

What is meant by digestion? How does it differ from nutrition?

Additional Questions | Q 2

Answer in detail.

Name the four types of teeth and their functions

Additional Questions | Q 3

Answer in detail.
Liver does not secrete any enzymes yet it helps indigestion. How?

Additional Questions | Q 4

Answer in detail.
What changes occur in food in the mouth?

Additional Questions | Q 5

Answer in detail.
What happens to the nutrients absorbed in the bloodstream from the small intestine?

Additional Questions | Q 6

Answer in detail.
You had eaten bread in the morning. Starting from the mouth, explain how it is digested?

Chapter 4: Digestive System

Review QuestionsReview QuestionsvLong Answer QuestionsAdditional Questions
Concise Biology Class 6 ICSE - Shaalaa.com

Selina solutions for Concise Biology Class 6 ICSE chapter 4 - Digestive System

Selina solutions for Concise Biology Class 6 ICSE chapter 4 (Digestive System) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Concise Biology Class 6 ICSE solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Concise Biology Class 6 ICSE chapter 4 Digestive System are Human Digestive System, Food and Its Types, Nutrients and Nutrition, Component of Food, The Mouth and Buccal Cavity, Tongue, The Teeth and Its Structure, The Salivary Glands, The Food Pipe/Oesophagus, The Stomach, The Small Intestine, Liver, Pancreas, The Large Intestine, Absorption of Food, The Aching Tooth, Assimilation of Food, Oral Health.

Using Selina Class 6 solutions Digestive System exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 6 prefer Selina Textbook Solutions to score more in exam.

Get the free view of chapter 4 Digestive System Class 6 extra questions for Concise Biology Class 6 ICSE and can use Shaalaa.com to keep it handy for your exam preparation

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