AP Board Class 7 Science Chapter 11 Respiration in Organisms Textbook Solutions PDF: Download Andhra Pradesh Board STD 7th Science Chapter 11 Respiration in Organisms Book Answers

AP Board Class 7 Science Chapter 11 Respiration in Organisms Textbook Solutions PDF: Download Andhra Pradesh Board STD 7th Science Chapter 11 Respiration in Organisms Book Answers

AP Board Class 7th Science Chapter 11 Respiration in Organisms Textbooks Solutions and answers for students are now available in pdf format. Andhra Pradesh Board Class 7th Science Chapter 11 Respiration in Organisms Book answers and solutions are one of the most important study materials for any student. The Andhra Pradesh State Board Class 7th Science Chapter 11 Respiration in Organisms books are published by the Andhra Pradesh Board Publishers. These Andhra Pradesh Board Class 7th Science Chapter 11 Respiration in Organisms textbooks are prepared by a group of expert faculty members. Students can download these AP Board STD 7th Science Chapter 11 Respiration in Organisms book solutions pdf online from this page.

Andhra Pradesh Board Class 7th Science Chapter 11 Respiration in Organisms Textbooks Solutions PDF

Andhra Pradesh State Board STD 7th Science Chapter 11 Respiration in Organisms Books Solutions with Answers are prepared and published by the Andhra Pradesh Board Publishers. It is an autonomous organization to advise and assist qualitative improvements in school education. If you are in search of AP Board Class 7th Science Chapter 11 Respiration in Organisms Books Answers Solutions, then you are in the right place. Here is a complete hub of Andhra Pradesh State Board Class 7th Science Chapter 11 Respiration in Organisms solutions that are available here for free PDF downloads to help students for their adequate preparation. You can find all the subjects of Andhra Pradesh Board STD 7th Science Chapter 11 Respiration in Organisms Textbooks. These Andhra Pradesh State Board Class 7th Science Chapter 11 Respiration in Organisms Textbooks Solutions English PDF will be helpful for effective education, and a maximum number of questions in exams are chosen from Andhra Pradesh Board.

Andhra Pradesh State Board Class 7th Science Chapter 11 Respiration in Organisms Books Solutions

Board	AP Board
Materials	Textbook Solutions/Guide
Format	DOC/PDF
Class	7th
Subject	Maths
Chapters	Science Chapter 11 Respiration in Organisms
Provider	Hsslive

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AP Board Class 7th Science Chapter 11 Respiration in Organisms Textbooks Solutions with Answer PDF Download

Find below the list of all AP Board Class 7th Science Chapter 11 Respiration in Organisms Textbook Solutions for PDF’s for you to download and prepare for the upcoming exams:

7th Class Science 11th Lesson Respiration in Organisms Textbook Questions and Answers

Improve Your Learning

Question 1.
Fill in the blanks and give reasons.
i) ……… are the respiratory organs of fish.
ii) In a cockroach, a network of ……… is found.
iii) ……… are found on leaves for the exchange of gases.
Answer:
i) Gills
ii) respiratory tubes
iii) Stomata
i) Reason: The gills absorb the oxygen that is dissolved in the water.
ii) Reason: Respiratory tubes help the cockroach to breath.
iii) Reason: Exchange of air in leaves takes place continuously through stomata.

Question 2.
Select correct answer and give reasons.
i) The process which involves the exchange of gases is called ( )
a. Respiration
b. Circulation
c. Digestion
d. Breathing
Answer:
a. Respiration
Reason: Exchange of gases takes place only in respiration by the oxidation of food material.

ii) During inspiration air passes into lungs due to ( )
a. Increased volume of thoracic cavity
b. Fall in pressure inside the lungs
c. Increase in the volume of thoracic cavity and fall in lung pressure
d. Muscular expansion of lungs
Answer:
c. Increase in the volume of thoracic cavity and fall in lung pressure
Reason: If volume increases, pressure will be decreased. Hence gases occupy the lungs by inspiration.

iii) Roots respire through ( )
a. Spiracles
b. Lenticels
c. Stomata
d. Air spaces
Answer:
b. Lenticels
Reason: Leaves are surrounded by epidermis with numerous pores called stomata. But, stems and roots covered by bark with lenticels. Hence roots respire through lenticels.

iv) Which of the following animals breathe through their skin and lungs? ( )
a. Fish
b. Frog
c. Snake
d. Earthworm
Answer:
b. Frog
Reason: Frogs can respire through lungs and skin. In rest both hibernation and aestivation frog lives in burrow of the soil, there it respires through skin and respire by lungs in water as well as on land.

v) What happens to lime water, when we exhale air into it? ( )
a. Remains same
b. Turns blue
c. Turns milky
d. Becomes colourless
Answer:
c. Turns milky
Reason: Lime water turns into milky by the action of carbon dioxide. Exhale air consists more carbon dioxide.

vi) Plants respire through ( )
a. Cells
b. Stomata
c. Gills
d. Gill membrane
Answer:
b. Stomata
Reason: Plants only having minute pores called stomata help in exchange of gases.

vii) The respiratory organs in cockroach are ( )
a. Lungs
b. Gills
c. Lenticels
d. Spiracles
Answer:
d. Spiracles
Reason: Cockroach is surrounded by hard coat and it has small openings to outside on either side of the body called spiracles. Spiracles exchange the gases in cockroach.

Question 3.
What is respiration? How is it different from breathing?
Answer:
Respiration:

1. It is oxidation of food to form carbon dioxide, water vapour and energy.
2. It is a biological process.
3. Energy is released in the form of ATP.
4. Enzymes are involved in this process.

Breathing:

1. It is simply an intake of fresh air and removal of foul air.
2. It is a physical process.
3. No energy is released rather used.
4. No Enzymes are involved in the process.

Question 4.
Frogs breathe through their skin as well as their lungs. Explain.
Answer:

1. Frog breathes, with its Lungs when it is on land.
2. When it goes deep under ground and sleeps twice every year, its moist skin takes over the function of its lungs.

Question 5.
If you want to know about ‘Actions of gases in lungs’. What questions you would like to ask?
Answer:
The following questions I would like to ask.

1. What will happen to the gases in the Lungs?
2. How are the gases transferred to different parts of the body?
3. In return what comes to the lungs?
4. How are the gases return to the Lungs?

Question 6.
If you did this experiment of respiration with fruits and dry leaves, what would the result be? Explain.
Answer:

1. In dry leaves respiration do not take place.
2. In fruits also this biochemical process “ceases.

Question 7.
It is very interesting to watch fishes in an aquarium. Make your own bottle aquarium.
Answer:
The student can do it.

Question 8.
Do you find any relation between plants and animals by their respiration and photosynthesis?
Answer:

1. Respiration is observed both in plants and animals.
2. Photosynthesis is the process we observe in plants. By this process, plants prepare their own food.
3. Animals cannot produce their own food. They depend on plants and other animals.
4. Oxygen is given out in photosynthesis and photosynthesis occurs in the day time.
5. Oxygen is taken in in respiration and energy is released.

Question 9.
As if wondered how plants and animals which live underwater also respire. Do you know how?
Answer:

1. Some plants can survive underwater taking the oxygen dissolved in water.
2. Some animals living underwater have special respiratory organs to take in the dissolved oxygen in water.
3. Thus plants and animals which live underwater can survive.

Question 10.
Imagine the lungs and size of an elephant. Is there any relation between body size and lung size? Collect information from School Library or Internet.
Answer:
The elephant is the only mammal whose pleural space is absent. The lungs are more elastic and are connected by connecting tissues to the thorax and diaphragm. Its wide capacity of air filling is 310 litres for one to breathe. The size of the lungs is always proportionate to the size of the body of all terrestrial animals whose respiration is pulmonary. The elasticity of the elephant lungs is more convenient to the movement of the body. The absence of pleural space helps in adjustment and applying negative force on lungs when the trunk raises up to the maximum height.

AP Board Textbook Solutions PDF for Class 7th Science

• AP Board Class 7
• AP Board Class 7 Science
• AP Board Class 7 Science 1st Lesson Food for Health
• AP Board Class 7 Science 2nd Lesson Nature of Substances
• AP Board Class 7 Science 3rd Lesson Nutrition in Organisms
• AP Board Class 7 Science 4th Lesson Respiration and Circulation
• AP Board Class 7 Science 5th Lesson Motion and Time
• AP Board Class 7 Science 6th Lesson Electricity
• AP Board Class 7 Science 7th Lesson Reproduction in Plants
• AP Board Class 7 Science 8th Lesson Wonders of Light
• AP Board Class 7 Science 9th Lesson Heat, Temperature and Climate
• AP Board Class 7 Science 10th Lesson Changes Around Us
• AP Board Class 7 Science 11th Lesson Fibres and Fabrics
• AP Board Class 7 Science 12th Lesson Soil and Water
• AP Board Class 7 Science 1st Lesson ఆహారంతో ఆరోగ్యం
• AP Board Class 7 Science 2nd Lesson పదార్థాల స్వభావం
• AP Board Class 7 Science 3rd Lesson జీవులలో పోషణ
• AP Board Class 7 Science 4th Lesson శ్వాసక్రియ – ప్రసరణ
• AP Board Class 7 Science 5th Lesson చలనం – కాలం
• AP Board Class 7 Science 6th Lesson విద్యుత్
• AP Board Class 7 Science 7th Lesson మొక్కలలో ప్రత్యుత్పత్తి
• AP Board Class 7 Science 8th Lesson కాంతితో అద్భుతాలు
• AP Board Class 7 Science 9th Lesson ఉష్ణం, ఉష్ణోగ్రత మరియు శీతోష్ణస్థితి
• AP Board Class 7 Science 10th Lesson మన చుట్టూ జరిగే మార్పులు
• AP Board Class 7 Science 11th Lesson దారాలు – దుస్తులు
• AP Board Class 7 Science 12th Lesson నేల మరియు నీరు
• AP Board Class 7 Science Chapter 1 Food Components
• AP Board Class 7 Science Chapter 2 Acids and Bases
• AP Board Class 7 Science Chapter 3 Animal Fibre
• AP Board Class 7 Science Chapter 4 Motion and Time
• AP Board Class 7 Science Chapter 5 Temperature and Its Measurement
• AP Board Class 7 Science Chapter 6 Weather and Climate
• AP Board Class 7 Science Chapter 7 Electricity Current and Its Effect
• AP Board Class 7 Science Chapter 8 Air Winds and Cyclones
• AP Board Class 7 Science Chapter 9 Reflection of Light
• AP Board Class 7 Science Chapter 10 Nutrition in Plants
• AP Board Class 7 Science Chapter 11 Respiration in Organisms
• AP Board Class 7 Science Chapter 12 Reproduction in Plants
• AP Board Class 7 Science Chapter 13 Seed Dispersal
• AP Board Class 7 Science Chapter 14 Water Too Little To Waste
• AP Board Class 7 Science Chapter 15 Soil Our Life
• AP Board Class 7 Science Chapter 16 Forest Our Life
• AP Board Class 7 Science Chapter 17 Changes Around Us

Andhra Pradesh Board Class 7th Science Chapter 11 Respiration in Organisms Textbooks for Exam Preparations

Andhra Pradesh Board Class 7th Science Chapter 11 Respiration in Organisms Textbook Solutions can be of great help in your Andhra Pradesh Board Class 7th Science Chapter 11 Respiration in Organisms exam preparation. The AP Board STD 7th Science Chapter 11 Respiration in Organisms Textbooks study material, used with the English medium textbooks, can help you complete the entire Class 7th Science Chapter 11 Respiration in Organisms Books State Board syllabus with maximum efficiency.

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