Advertisements
Online Mock Tests
Chapters
2: Classification of Plants
3: Classification of Animals
▶ 4: Photosynthesis and Respiration
5: Excretion in Humans
6: Nervous System
7: Allergy
![Selina solutions for Concise Biology [English] Class 7 ICSE chapter 4 - Photosynthesis and Respiration - Shaalaa.com](/images/concise-biology-english-class-7-icse_6:28987fccbce54175b79fe833fafb2d20.jpg "Selina solutions for Concise Biology [English] Class 7 ICSE chapter 4 - Photosynthesis and Respiration")
Advertisements
Solutions for Chapter 4: Photosynthesis and Respiration
Below listed, you can find solutions for Chapter 4 of CISCE Selina for Concise Biology [English] Class 7 ICSE.
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Review questions
Put a tick (✓ ) against the most appropriate alternative in the following statement.
Carbohydrates are stored by plants in the form of:
Vitamins
Proteins
Fats
Glucose
Put a tick (✓ ) against the most appropriate alternative in the following statement.
Stomata are present on the surface of:
Leaves
Roots
Stem
Flower petals
Put a tick (✓ ) against the most appropriate alternative in the following statement.
Which one of the following is an end-product of photosynthesis?
Fructose
Glucose
Cellulose
Lactose
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Review questions
Short answer question.
Why do leaves generally look green?
Short answer question.
Which four of the following are needed for photosynthesis in a leaf:
(i) Carbon dioxide:
(ii) Oxygen:
(iii) Nitrates :
(iv) Water:
(v) Chlorophyll:
(vi) Soil:
(vii) Light:
Short answer question.
What is the source of energy for photosynthesis?
Short answer question.
Which gas is taken in and which one is given out by the leaf in bright sunlight?
(i) Taken in :
(ii) Given out:
Suppose we compare the leaf with a factory, match the items in Column A with those in Column B.
| Column A | Column B | ||
| Left | Factory | ||
| 1 | Cells in the leaf | a | Raw materials |
| 2 | Chloroplast | b | Power |
| 3 | Sunlight | c | Machinery |
| 4 | Oxygen and water | d | End product |
| 5 | Carbon dioxide and water | e | By product |
| 6 | Glucose | f | Workroom |
State whether the following statement is True or False:
Green plants prepare their food by using two raw materials, oxygen and water.
True
False
State whether the following statement is True or False:
The chlorophyll enables the plants to use light energy.
True
False
State whether the following statement is True or False:
The free oxygen in the atmospheric air is the result of photosynthesis.
True
False
State whether the following statement is True or False:
Photosynthesis occurs only in chlorophyll-containing parts of the plant.
True
False
Differentiate between aerobic and anaerobic respiration.
Write the overall chemical equations of the two kinds of respiration in plants.
(i) Aerobic:
(ii) Anaerobic:
Explain how photosynthesis is different from respiration.
Do the plants respire all day and night or only during the night?
What happens to the energy liberated during respiration?
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Review questions
Long answer question.
In order to carry out photosynthesis, what are the substances that a plant must take in? Also mention their sources.
Long answer question.
What is the role of chlorophyll in photosynthesis?
Long answer question.
Do plants need oxygen? If so, what is its source?
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Additional questions
Answer this question.
What is external respiration?
Answer this question.
Write the equation showing the process of respiration.
Answer this question.
In what form is the energy released during respiration stored?
Answer this question.
Name the two types of respiration.
Answer this question.
Name the organ of respiration in fishes.
Answer this question.
What are the holes on the sides of the body of insects called?
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Additional questions
Answer the following in one word.
What is the muscular sheet below the lungs called?
Answer the following in one word.
Which organ is called the voice box?
Answer the following in one word.
Which membrane covers the lungs?
Answer the following in one word.
Where does the exchange of gases take place?
Answer the following in one word.
What is formed when oxygen combines with hemoglobin?
Answer the following in one word.
What is carbamino hemoglobin?
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Exercises
Tick the most appropriate answer.
The products of respiration are :
carbon dioxide and oxygen
oxygen and energy
carbon dioxide, water, and energy
carbon dioxide, oxygen, and energy.
Tick the most appropriate answer.
Glucose is oxidized to produce ethyl alcohol during
excretion
aerobic respiration
anaerobic respiration
photosynthesis
Tick the most appropriate answer.
In insects like grasshopper, there is a well-developed system of air tubes called
tracheae
gills
lungs
alveoli
Tick the most appropriate answer.
Frogs breathe through the
moist skin
lungs
mouth cavity
all of these
Tick the most appropriate answer.
Inside the chest, the trachea divides into two branches called
bronchi
bronchioles
bronchus
alveolus
Tick the most appropriate answer.
In humans beings, during inhalation the diaphragm.
moves up
moves down
remains at its position
moves down moves up
Tick the most appropriate answer.
Exhaled air contains
more carbon dioxide
more oxygen
more nitrogen
more hydrogen
Tick the most appropriate answer.
Plants have these for the exchange of gases.
spiracles and stomata
lenticels and spiracles
lenticels and stomata
buds and flowers
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Exercises
Fill in the blank.
The two respiration of respiration are ................ and...................
Fill in the blank.
Muscles of human beings switch to anaerobic ...................... in the absence of oxygen.
Fill in the blank.
In .................. respiration, food is completely oxidized into carbon dioxide, water, and energy.
Fill in the blank.
Below the lungs is a muscular sheet called ........................
Fill in the blank.
Bronchi divide into smaller tubes called .....................
Fill in the blank.
In human beings, the exchange of gases takes place in .................... (lungs).
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Exercises
State if the following statement is true or false. Correct the statement if it is false.
The oxidation of food to release energy and water is called breathing.
True
False
State if the following statement is true or false. Correct the statement if it is false.
Anaerobic respiration takes place in our bones.
True
False
State if the following statement is true or false. Correct the statement if it is false.
The microscopic air sacs present in the lungs are called bronchi.
True
False
State if the following statement is true or false. Correct the statement if it is false.
Respiration that takes place through the skin is called pulmonary respiration.
True
False
State if the following statement is true or false. Correct the statement if it is false.
Stomata are present on mature roots and woody stems.
True
False
State if the following statement is true or false. Correct the statement if it is false.
In photosynthesis, oxygen is released as a by-product
True
False
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Exercises
Match the following.
| Column A | Column B | ||
| (Organism) | (Organ of Respiration) | ||
| 1 | Fish | a | Lungs |
| 2 | human beings | b | tracheae |
| 3 | frog | c | gills |
| 4 | cockroach | d | moist skin, mouth cavity, and lungs |
| 5 | bird | e | lungs |
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Exercises
Differentiate between
External respiration and Internal respiration
Differentiate between
Photosynthesis and Respiration
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Exercises
Answer the following in short.
Define respiration.
Answer the following in short.
What is the full form of ATP?
Answer the following in short.
What is the respiratory tract?
Answer the following in short.
Define cutaneous respiration?
Answer the following in short.
What is the function of pleural fluid?
Answer the following in short.
What is the role of the diaphragm in breathing mechanism?
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Exercises
Answer the following in detail.
How is the process of cellular respiration different from breathing?
Answer the following in detail.
Explain the process of Cellular Respiration.
Answer the following in detail.
In human beings, what happens to oxygen after it is inhaled through the nose?
Answer the following in detail.
Show the mechanism of breathing in human beings.
Answer the following in detail.
Explain the process of the exchange of gases in plants.
Selina solutions for Concise Biology [English] Class 7 ICSE 4 Photosynthesis and Respiration Exercises
Number the following organs in the correct order to show the path taken by fresh air at the time of inhalation.
trachea, nose, bronchioles, bronchi, larynx, alveoli, pharynx, lungs
Solutions for 4: Photosynthesis and Respiration
Selina solutions for Concise Biology [English] Class 7 ICSE chapter 4 - Photosynthesis and Respiration
Shaalaa.com has the CISCE Mathematics Concise Biology [English] Class 7 ICSE CISCE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Selina solutions for Mathematics Concise Biology [English] Class 7 ICSE CISCE 4 (Photosynthesis and Respiration) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. Selina textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Concise Biology [English] Class 7 ICSE chapter 4 Photosynthesis and Respiration are Photosynthesis: Food-Making Process in Plants, Chlorophyll: The Vital Plant Pigment, Regulation of Stomatal Opening for Letting in Carbon Dioxide, Process of Photosynthesis, Factors Affecting Photosynthesis, End Result of the Products of Photosynthesis, Significance of Photosynthesis, Plastid, Autotrophic Plants, Mode of Nutrition in Plant, Respiration and Photosynthesis, Respiration, Types of Respiration: Aerobic and Anaerobic Respiration, Respiration in Plant.
Using Selina Concise Biology [English] Class 7 ICSE solutions Photosynthesis and Respiration exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Selina Solutions are essential questions that can be asked in the final exam. Maximum CISCE Concise Biology [English] Class 7 ICSE students prefer Selina Textbook Solutions to score more in exams.
Get the free view of Chapter 4, Photosynthesis and Respiration Concise Biology [English] Class 7 ICSE additional questions for Mathematics Concise Biology [English] Class 7 ICSE CISCE, and you can use Shaalaa.com to keep it handy for your exam preparation.
