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CBSE 7th Standard Science Transpiration in Animals and Plants Model Questions Papers Study Material - QB365 Set A

Published on: 31/10/2025

Question Set A

CBSE 7th Standard Science Transpiration in Animals and Plants Model Questions Papers Study Material - QB365

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Std: 7th Standard CBSE - Science

chapter: Transpiration in Animals and Plants - Model Questions Papers

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Questions:

Fill up / 1 Marks

5 x 1 = 5

Heart has four _________ called as chambers.

The _________ is an organ which beats continuously to act as a __________.

Blood consists of _______, _______, ________ and platelets.

The rhythmic expansion and contraction of the heart is called ____________.

The blood from the heart is transported to all parts of the body by the ___________.

Multiple Choice Question

5 x 1 = 5

Transport of water in plants takes place through

(a)

xylem

(b)

vascular bundle

(c)

phloem

(d)

None of these

The lower chambers of heart is called

(a)

atria

(b)

ventricles

(c)

aorta

(d)

vena cava

The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in

(a)

veins

(b)

arteries

(c)

heart

(d)

capillaries

The muscular tube through which stored urine is passed out of the body is called

(a)

kidney

(b)

ureter

(c)

urethra

(d)

urinary bladder

10.

In plants, water is transported through

(a)

xylem

(b)

phloem

(c)

stomata

(d)

root hair

Generic 3

5 x 3 = 15

11.

What is the special feature present in a human heart which does not allow mixing of blood when oxygen-rich and carbon dioxide-rich blood reach the heart?

12.

The internal structure of heart has four chambers.
(a) Name the upper chambers of heart.
(b) Name the lower chambers of heart.

13.

How does the water move from root to leaves?

14.

Describe the function of the heart.

15.

What will happen if there are no platelets in the blood?

Generic 2

5 x 2 = 10

16.

What is the purpose of using stethoscope by doctors?

17.

Arteries and veins carry blood to and from the heart. Which of these carry the blood?
(a) Back to the heart from all organs.
(b) Away from heart for distribution in all organs.

18.

Name the functional units of the major excretory organ of humans.

19.

Blood is a fluid connective tissue. Justify.

20.

Give the name of blood component which is liquid and contains 90% water.

Generic 5

2 x 5 = 10

21.

While riding a bike, Mason fell from it due to loss of balance. He got up and realised that he was bleeding from several wounds badly. He panicked and started to run but Mansi who was looking at him, stopped him and told him to clean his wound with a clean cloth and that blood will stop coming in a while. Mason noticed that he has stopped bleeding after sometime and a hard covering was appearing on his wounds.
(a) Why did the bleeding stop after a while?
(b) What is blood and what type of cells are responsible for clotting?
(c) What of values do you think Mansi have?

22.

Priya's grandfather was taken to the hospital as he was unable to perform excretory processes. Priya heard a nurse talking to her father that her grandfathers has kidney failure and needs to undergo dialysis. Priya later asked her father as to what is dialysis process and why does grandpa needs it. Her father smiles and tells her all the facts associated with this process.
(a) What do you mean by dialysis?
(b) Why is there a need for dialysis in some people?
(c) Excretion is an important life process. How?
(d) Which is the major excretory organ in humans?
(e) What values do you observe in Priya?

True or False

5 x 1 = 5

23.

The process of cleaning the blood of human by using a kidney machine is called dialysis.

(a)

False

(b)

True

24.

Digested food, oxygen and CO₂ passes through the walls of the capillaries.

(a)

False

(b)

True

25.

Kidney is a rounded structure used to filter the blood.

(a)

True

(b)

False

26.

Haemoglobin is the red colour pigment present in blood.

(a)

False

(b)

True

27.

The vascular tissue for the transport of food in plants is called xylem.

(a)

True

(b)

False

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Answers Key:

Fill up / 1 Marks

5 x 1 = 5

()
compartments

()
heart, pump

()
plasma, RBCs, WBCs

()
heartbeats

()
arteries

Multiple Choice Question

5 x 1 = 5

(a)
xylem

(b)
ventricles

(d)
capillaries

10.

In plants, water is transported through xylem.

Generic 3

5 x 3 = 15

11.

In human, the heart has four chambers. The two upper chambers are called the atria and the two lower chambers are called the ventricles. The partition between the chambers helps to avoid mixing up of blood rich in oxygen with the blood rich in carbon dioxide.

12.

The vertical section of heart shows that heart is divided into four compartments called as chambers.
(a) The upper two chambers of heart are called atria or atrium.
(b) The lower two chambers of heart are called ventricles.

13.

The water moves from root to leaves with the help of specialised cells called vascular tissue. Transport of water and nutrients is done by xylem tissue present in plants.

14.

The heart acts as a pump for the transport of blood. The human heart is divided into four chambers. The upper two chambers are called right and left atrium and the lower two chambers are called the right and left ventricles. The right side of the heart, i.e. the right auricle and ventricle receive carbon dioxide rich blood from all parts of the body and transport it to the lungs.
Its left side, i.e. the left auricle and ventricle, receive oxygen-rich blood from the lungs which is transported it to all parts of the body.

15.

The blood clot is formed due to the presence of the cells called platelets in the blood. If there were no platelets in the blood, then bleeding caused by a cut from an injury would not stop. This may cause loss of too much blood from the body of a person leading to death.

Generic 2

5 x 2 = 10

16.

A stethoscope reads heartbeats as diaphragm amplies the rounds of heartbeat when placed on specific areas.

17.

(a) Veins
(b) Arteries.

18.

Kidney is the major excretory organ and nephrons are its functional units.

19.

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

20.

The sticky liquid part of the blood, containing 90% water is called plasma.

Generic 5

2 x 5 = 10

21.

(a) Bleeding stops after some time because some specialised cells start forming a hard covering called clot at the site of wound.
(b) Bleeding is a fluid connective tissue present in all parts of the body. Platelets are responsible for formation of clot.
(c) Mansi is helpful, knowledgeable and interested in science subject.

22.

(a) Dialysis is the process used for cleaning of the blood by separating the waste products in an artificial medium.
(b) Dialysis is needed when the excretory organ of humans, i.e. kidney becomes damaged on unfunctional due to some injury or infection.
(c) Excretion process removes the waste products released in body after the utilisation of food and other components. These products are toxic and may harm us if not removed from our body.
(d) Kidney
(e) Priya is curious, sincere and aware eager to acquire new knowledge.

True or False

5 x 1 = 5

23.