9394949438

[LATEST]$type=sticky$show=home$rm=0$va=0$count=4$va=0


 

NCERT Solutions for Class 7 Science Chapter 2 Nutrition in Animals

NCERT Solutions for class 7 science chapter 2 nutrition in animals: Solved Exercise Questions:

Q1. 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 ____________ .

Answer: (a) The main steps of nutrition in humans are ingestion , digestion , absorption , assimilation and egestion .

(b) The largest gland in the human body is liver .

(c) The stomach releases hydrochloric acid and digestive juices juices which act on food.

(d) The inner wall of the small intestine has many finger-like outgrowths called villi (singular villus) .

(e) Amoeba digests its food in the food vacuole.

Q2. Mark ‘T’ if the statement is true and ‘F’ 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, Digestion of carbohydrates, like starch, begins in the buccal cavity.

(b) True , The saliva breaks down the starch into sugars.

(c) True, bile juice that is stored in a sac called the gall bladder.

(d) True , In ruminants, bacteria present in rumen helps in digestion of cellulose.

Q3. Tick mark the correct answer in the following question:

(a) Fat is completely digested in the

(i) stomach

(ii) mouth

(iii) small intestine

(iv) large intestine

Answer: (a) Fat is completely digested in the

(iii) small intestine

Q3. Tick mark the correct answer in the following question:

b) Water from the undigested food is absorbed mainly in the

(i) stomach

(ii) foodpipe

(iii) small intestine

(iv) large intestine

Answer: (b) Water from the undigested food is absorbed mainly in the

(iv) large intestine.

Q4. Match the items of Column I with those given in Column II:

Column I Column II

Food componentsProduct(s) of digestion

Carbohydrates Fatty acids and glycerol

Proteins Sugar

Fats Amino acids

Answer:

Column I

Matched Column II

Food components

Product(s) of digestion

Carbohydrates

Sugar

Proteins

Amino acids

Fats

Fatty acids and glycerol

Q5. What are villi? What is their location and function?

Answer: The inner walls of the small intestine have thousands of finger-like outgrowths. These are called villi (singular villus).

The villi increase the surface area for absorption of the digested food. The surface of the villi absorbs the digested food materials. The absorbed substances are transported via the blood vessels to different organs of the body where they are used to build complex substances such as the proteins required by the body. This is called assimilation.

Q6. Where is the bile produced? Which component of the food does it help to digest?

Answer: The liver secretes bile juice that is stored in a sac called the gall bladder.

The bile plays an important role in the digestion of fats.

Q7. Name the type of carbohydrate that can be digested by ruminants but not by humans. Give the reason also

Answer: Celluloseis the type of carbohydrate that can be digested by ruminants but not by humans because the cellulose of the food is digested by the action of certain bacteria which are not present in humans.

Q8. Why do we get instant energy from glucose?

Answer: The carbohydrates get broken into simple sugars like glucose.

In the cells, glucose breaks down with the help of oxygen into carbon dioxide and water, and it easily get absorbed in the blood hence we get instant energy from glucose.

Q9. 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 ________________.

Answer: (i) absorption of food small intestine.

(ii) chewing of food buccal cavity.

(iii) the killing of bacteria stomach.

(iv) complete digestion of food small intestine.

(v) formation of faeces large intestine.

Q10. Write one similarity and one difference between the nutrition in amoeba and human beings

Answer: The similaritybetween the nutrition in amoeba and human beings is that both are heterotrophs, they derive their nutrition from other organisms.

The dissimilarity between them is that human beings have a complex digestive system where food gets digested in separate regions while in amoeba food is digested in a food vacuole.

Q11. 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: Matched items of column I with column II :

Column I

Column II

(a) Salivary gland

(iii) Saliva secretion

(b) Stomach

(iv) Acid release

(c) Liver

(i) Bile juice secretion

(d) Rectum

(vii) Release of faeces

(e) Small intestine

(v) Digestion is completed

(f) Large intestine

(vi) Absorption of water

Q12. Label Fig. 2.11 of the digestive system

Answer: The labelled diagram is shown in the figure below:

Q13. Can we survive only on raw, leafy vegetables/grass?

Answer: No,we cannot survive only on raw, leafy vegetables, or grass. It is because humans are not able to digest the cellulose present in the grass or leafy vegetables due to the absence of cellulose-digesting enzymes.

Chapter No. Chapter Name
Chapter 1 NCERT solutions for class 6 Science Chapter 1 Food: Where Does It Come From?
Chapter 2 NCERT solutions for class 6 Science Chapter 2 Components of Food
Chapter 3 NCERT Solutions for class 6 science chapter 3 Fibre to Fabric
Chapter 4 NCERT Solutions for class 6 science chapter 4 Sorting Materials into Groups
Chapter 5 NCERT Solution for class 6 science chapter 5 Separation of Substances
Chapter 6 NCERT solutions for class 6 science chapter 6 Changes around Us
Chapter 7 NCERT solutions for class 6 science chapter 7 Getting to Know Plants
Chapter 8 NCERT Solutions for class 6 science chapter 8 Body Movements
Chapter 9 NCERT solutions for class 6 science chapter 9 The Living Organisms Characteristics and Habitats
Chapter 10 NCERT Solution for class 6 science chapter 10 Motion and Measurement of Distances
Chapter 11 NCERT solution for class 6 science chapter 11 Light, Shadows, and Reflections
Chapter 12 NCERT solutions for class 6 science chapter 12 Electricity and Circuits
Chapter 13 NCERT solutions for class 6 science chapter 13 Fun with Magnets
Chapter 14 NCERT Solution for class 6 science chapter 14 Water
Chapter 15 NCERT solutions for class 6 Science Chapter 15 Air Around Us
Chapter 16 NCERT Solutions for Class 6 Science Chapter 16 Garbage In, Garbage Out

Study Resources Quick Links

Want to know more

Want to Know More
Please fill in the details below:

INNER POST ADS

Latest IITJEE Articles$type=three$c=3$author=hide$comment=hide$rm=hide$date=hide$snippet=hide

Latest NEET Articles$type=three$c=3$author=hide$comment=hide$rm=hide$date=hide$snippet=hide

Name

Admissions,1,Alternating Current,60,AP EAMCET 2020,1,Basic Maths,2,BCECE 2020,1,best books for iit jee,2,best coaching institute for iit,1,best coaching institute for iit jee preparation,1,best iit jee coaching delhi,1,best iit jee coaching in delhi,2,best study material for iit jee,4,BITSAT Registration 2020,1,Blog,62,books for jee preparation,1,books recommended by iit toppers,3,Capacitance,3,CBSE,1,CBSE accounts exam,1,CBSE boards,1,CBSE NEET,9,cbse neet 2019,3,CBSE NEET 2020,1,cbse neet nic,1,Centre of Mass,2,Chemistry,58,Class 12 Physics,15,coaching for jee advanced,1,coaching institute for iit jee,2,Collision,2,COMEDK UGET 2020 Application Form,1,COMEDK UGET 2020 Exam Form,1,COMEDK UGET news,1,CUCET 2020,2,Current Electricity,4,CVR college,1,Electromagnetic Induction,3,Electronics,1,Electrostatics,3,Energy,1,Fluid Mechanics,4,Gravitation,2,GUJCET 2020 Application Form,1,Heat,4,iit admission,1,iit advanced,1,iit coaching centre,3,iit coaching centre in delhi,2,iit coaching classes,2,iit coaching in delhi,1,iit coaching institute in delhi,1,iit entrance exam,1,iit entrance exam syllabus,2,iit exam pattern,2,iit jee,5,iit jee 2019,3,iit jee advanced,2,iit jee books,3,iit jee coaching,2,iit jee exam,3,iit jee exam 2019,1,iit jee exam pattern,3,iit jee institute,1,iit jee main 2019,2,iit jee mains,3,iit jee mains syllabus,2,iit jee material,1,iit jee online test,3,iit jee practice test,3,iit jee preparation,6,iit jee preparation in delhi,2,iit jee preparation time,1,iit jee preparation tips by toppers,2,iit jee question paper,1,iit jee study material,3,iit jee study materials,2,iit jee syllabus,2,iit jee syllabus 2019,2,iit jee test,3,iit preparation,2,iit preparation books,5,iit preparation time table,2,iit preparation tips,2,iit syllabus,2,iit test series,3,IITJEE,100,IPU CET,1,JEE Advanced,83,jee advanced exam,2,jee advanced exam pattern,1,jee advanced paper,1,JEE Books,1,JEE Coaching Delhi,3,jee exam,3,jee exam 2019,6,JEE Exam Pattern,2,jee exam pattern 2019,1,jee exam preparation,1,JEE Main,85,jee main 2019,4,JEE Main 2020,1,JEE Main 2020 Application Form,2,JEE Main 2020 news,2,JEE Main 2020 Official Answer Key,1,JEE Main 2020 Registration,1,JEE Main 2020 Score,1,JEE Main application form,1,jee main coaching,1,JEE Main eligibility criteria,3,jee main exam,1,jee main exam 2019,3,jee main online question paper,1,jee main online test,3,JEE Main Paper-2 Result,1,jee main registration,2,jee main syllabus,2,JEE mains 2020,1,jee mains question bank,1,jee mains test papers,3,JEE Mock Test,2,jee notes,1,jee past papers,1,JEE Preparation,2,jee preparation in delhi,1,jee preparation material,4,JEE Study Material,1,jee syllabus,6,JEE Syllabus Chemistry,1,JEE Syllabus Maths,1,JEE Syllabus Physics,1,jee test series,3,KCET - 2020,1,Kinematics,1,Latest article,5,Latest Articles,61,Latest News,34,latest news about neet exam,1,Laws of Motion,2,Magnetic Effect of Current,3,Magnetism,3,MHT CET 2020,2,MHT CET 2020 exam schedule,1,Modern Physics,1,NCERT Solutions,15,neet,3,neet 2019,1,neet 2019 eligibility criteria,1,neet 2019 exam date,2,neet 2019 test series,2,NEET 2020,2,NEET 2020 Application Form,1,NEET 2020 Eligibility Criteria,1,NEET 2020 Registration,1,neet application form,1,neet application form 2019 last date,1,Neet Biology Syllabus,1,Neet Books,3,neet eligibility criteria,3,neet exam 2019,7,neet exam application,1,neet exam date,1,neet exam details,1,neet exam pattern,6,neet exam pattern 2019,2,neet examination,1,neet mock test 2019,1,Neet Notes,3,Neet Online Application Form,3,neet online test,2,neet past papers,1,neet physics syllabus,1,neet practice test,2,NEET preparation books,1,neet qualification marks,1,NEET question paper 2019,1,neet question papers,1,neet registration,1,Neet Study Material,3,neet syllabus,6,neet syllabus 2019,5,NEET Syllabus 2020,1,neet syllabus chemistry,1,neet syllabus for biology,1,neet syllabus for physics,1,neet test series,1,neet ug 2019,2,news,5,online study material for iit jee,1,Optical Instruments,1,Physics,110,physics books for iit jee,1,Power,1,Practical Physics,1,Quiz,5,Ray Optics,1,Rotational Motion,3,SHM,3,Simple Harmonic Motion,3,study materials for iit jee,1,Study Notes,110,study notes for iit jee,1,Thermodynamics,4,TS EAMCET Notification,2,Units and Dimensions,1,UPSEE 2020,1,UPSEE 2020 Application Form,2,UPSEE EXAM,1,Vectors,2,VITEE Application form,1,Wave Motion,3,Wave Optics,1,WBJEE 2020 Admit Card,1,WBJEE 2020 Answer Key,1,Work,1,
ltr
item
Best IIT JEE Coaching Institute in Delhi | NEET Coaching Institute in Delhi: Class 7 Science Chapter 2 Nutrition in Animals
Class 7 Science Chapter 2 Nutrition in Animals
https://1.bp.blogspot.com/-lN4nZ8tJkUo/X2n71FIoeEI/AAAAAAAAAKk/mvaxZeayKu4IkTIebqwxk9h6eOGQROD1wCNcBGAsYHQ/s320/Cleariitmedical%2BAcademic%2BTemplate%2BImage.pptx%2B%25281%2529%2B%25281%2529.jpg
https://1.bp.blogspot.com/-lN4nZ8tJkUo/X2n71FIoeEI/AAAAAAAAAKk/mvaxZeayKu4IkTIebqwxk9h6eOGQROD1wCNcBGAsYHQ/s72-c/Cleariitmedical%2BAcademic%2BTemplate%2BImage.pptx%2B%25281%2529%2B%25281%2529.jpg
Best IIT JEE Coaching Institute in Delhi | NEET Coaching Institute in Delhi
https://www.cleariitmedical.com/2020/09/NCERT-Solutions-for-Class-7-Science-Chapter-2-Nutrition-in-Animals.html
https://www.cleariitmedical.com/
https://www.cleariitmedical.com/
https://www.cleariitmedical.com/2020/09/NCERT-Solutions-for-Class-7-Science-Chapter-2-Nutrition-in-Animals.html
true
7783647550433378923
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS CONTENT IS PREMIUM Please share to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy