CBSE 7th Standard Science Transpiration in Animals and Plants Important Questions And Answers Study Material - QB365 Set C | QB365

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CBSE 7th Standard Science Transpiration in Animals and Plants Important Questions And Answers Study Material - QB365 Set C

Published on: 31/10/2025

Question Set C

CBSE 7th Standard Science Transpiration in Animals and Plants Important Questions And Answers Study Material - QB365

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Std: 7th Standard CBSE - Science

chapter: Transpiration in Animals and Plants - Important Questions And Answers

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Questions:

Multiple Choice Question

11 x 1 = 11

Removal of metabolic waste from body is termed as:

(a)

Ingestion

(b)

Egestion

(c)

Excretion

(d)

Elimination

Which controls blood circulation?

(a)

Lungs

(b)

Kidney

(c)

Heart

(d)

Liver

The excretory substance in fishes is :

(a)

Urea

(b)

Ammonia

(c)

Uric acid

(d)

None of these

The colour of blood is red due to the presence of:

(a)

Chlorophyll

(b)

Haemoglobin

(c)

Oxygen

(d)

Carbon dioxide

Transport of water in plants takes place through

(a)

xylem

(b)

vascular bundle

(c)

phloem

(d)

None of these

In a tall tree which force is responsible for pulling water and minerals from the soil?

(a)

Gravitational force

(b)

Transportation force

(c)

Suction force

(d)

Conduction force

The filtration of blood is done by

(a)

heart

(b)

kidney

(c)

blood

(d)

urethra

The lower chambers of heart is called

(a)

atria

(b)

ventricles

(c)

aorta

(d)

vena cava

The organ which controls the blood circulation in body is

(a)

Liver

(b)

Lungs

(c)

Heart

(d)

Kidney

10.

Which among the following contain haemoglobin?

(a)

Red blood cells

(b)

White blood cells

(c)

Both (a) and (b)

(d)

None of these

11.

In plants, water is transported through

(a)

xylem

(b)

phloem

(c)

stomata

(d)

root hair

Generic 2

10 x 2 = 20

12.

Boojho's uncle was hospitalised and put on dialysis after a severe infection in both of his kidneys.
(a) What is dialysis?
(b) When does it become necessary to take such a treatment?

13.

Human excretory system is depicted in the figure.

(a) Label the part 1, 2, 3 and 4
(b) Write the function of 1 & 3.

14.

What is the relationship between pulse and heartbeat?

15.

Give two differences between artery and vein.

16.

In our heart, there is no mixing of oxygenated and deoxygenated blood. How it is made possible?

17.

Blood is a fluid connective tissue. Justify.

18.

Human blood group is divided into how many groups? Name them.

19.

Veins have valves which allow blood to flow only in one direction. Arteries do not have valves. Yet the blood flows in one direction only. Can you explain why?

20.

Name the organ which is located in the chest cavity with its lower tip slightly tilted towards the left.

21.

Name some useful products or materials that are carried by blood.

Generic 3

5 x 3 = 15

22.

Describe the functions of blood.

23.

What is transpiration? What is its significance?

24.

The given diagram is of human excretory system. Label the marked parts of it.

25.

Give one function of each of the following organs.
(a) Blood vessels
(b) Kidney
(c) Blood platelets
(d) Heart.

26.

Name the process and the organ which helps in removing the following wastes from the body.
(a) Carbon dioxide
(b) Undigested food
(c) Urine
(d) Sweat.

Generic 5

2 x 5 = 10

27.

Label five parts (A to E) of heart and state their functions.

28.

Read the following terms given below.

root hairs	xylem	urethra
arteries	kidneys	veins
atria	capillaries	heart
ureter	phloem	urinary bladder

Group the terms on the basis of the categories given below.
(a) Circulatory system of animals.
(b) Excretory system in human.
(c) Transport of substances in plants.

True or False

5 x 1 = 5

29.

Sweat is secreted by sweat glands, present in our skin.

(a)

False

(b)

True

30.

WBC protects the body from diseases.

(a)

False

(b)

True

31.

Nephrons are the tiny filtering units of the kidney.

(a)

False

(b)

True

32.

Platelets help in blood clotting.

(a)

False

(b)

True

33.

Atria are the two upper chambers of the heart.

(a)

False

(b)

True

1 Marks

5 x 1 = 5

34.

What are the components of blood?

35.

Does sweat serve any other function?

36.

How many times did your heart beat in a minute?

37.

What will happen if the blood rich in oxygen and the blood rich in carbon dioxide mix with each other?

38.

Why do you think there; is throbbing?

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Answers Key:

Multiple Choice Question

11 x 1 = 11

(b)
Ammonia

(b)
Haemoglobin

(a)
xylem

(b)
kidney

(b)
ventricles

10.

(a)
Red blood cells

11.

In plants, water is transported through xylem.

Generic 2

10 x 2 = 20

12.

(a) In dialysis blood is filtered periodically through an artificial kidney.
(b) In the event of kidney failure

13.

(a) Part 1: Kidney
Part 2: Ureter
Part 3: Urinary Bladder
Part 4: Urethra
(b) Function of 1 (Kidney): Helps in filtration of blood. Function of 3 (Urinary Bladder): Receives and collects urine from kidneys.

14.

The rhythmic contraction and relaxation of heart is known as heartbeat. The throbbing caused by the blood flowing in the arteries is called pulse. One pulse denotes one heartbeat.

15.

Difference between artery and vein:

Artery	Vein
1. Thick walled which are elastic.	Thin walled which are less elastic
2. Have no valves and they transport oxygenated blood (except pulmonary artery).	Have valves and they transport deoxygenated blood (except pulmonary vein).

16.

In our heart, the right side and left side is completely separated by a septum. The septum does not allows oxygenated and deoxygenated blood to mix.

17.

Blood is a fluid tissue which connects all the parts of body with each other.

18.

Human blood group is divided into four groups. These are A, B, AB and O.

19.

Veins have valves to prevent blood from flowing backwards and pooling, whereas arteries pump blood at very high pressures, which naturally prevents backflow.

20.

The heart is located in the chest cavity with its lower tip slightly tilted towards the left.

21.

Food, water and oxygen are the products that are carried by blood to every part of the body.

Generic 3

5 x 3 = 15

22.

(i) It transports the digested food from the small intestine to the other parts of the body.
(ii) It carries oxygen from the lungs to the other parts of the body.
(iii) Blood helps in removal of carbon dioxide and wastes from the cells.

23.

Evaporation of water through stomata present on the leaves is called transpiration.
Significance :
(i) It keeps the plant cool.
(ii) It helps in upward movement of water in xylem as it creates a suction force.

24.

The various parts of human excretory system are as follows

25.

The main function of the following organs are as follows:
(a) Blood vessels These run between the heart and the rest of the body. It helps in the transport of blood between heart and various organs of the body.
(b) Kidney It is called as the 'magic filters'. It helps in the removal of unwanted substances like urea from the blood.
(c) Blood platelets This component of blood helps in blood clotting and prevents the blood loss from the body.
(d) Heart It is a pumping organ which receives blood from the body through veins and pumps it with enough force into the arteries from where it is carried to the various body parts.

26.

	Waste	Process	Organ
(a)	Carbon dioxide	Exhalation	Lungs
(b)	Undigested food	Egestion	Large intestine and anus
(c)	Urine	Excretion	Kidneys
(d)	Sweat	Perspiration (sweating)	Sweat glands

Generic 5

2 x 5 = 10

27.

A-Septum between right and left side of heart. It prevents mixing of oxygenated and deoxygenated blood.
B-Left ventricle,which pumps oxygenated blood to body parts.
C-Aorta is the main artery emerging from left ventricle. It gives rise to other arteries which carry blood to different body parts.
D-Left auricles, which receives oxygenated blood from lungs and pushes it into left ventricle.
E-Pulmonary vein brings oxygenated blood from lungs to left auricle.

28.

The terms on the basis of the categories can be grouped as follows
(a) Circulatory system of human
Arteries, atria, capillaries, veins, heart.
(b) Excretory system in human
Urethra, kidneys, ureter, urinary bladder.
(c) Transport of substances in plants
Root hairs, xylem, phloem.

True or False

5 x 1 = 5

29.