Test Details

Respiration In Organisms,Transportation In Animals And Plants

Feb 28, 10:05 PM

50 minutes

Feb 28, 10:55 PM

80.0 marks

MCQ

40 questions

Pankaj kumar yadav

Class Details

Maths

English

Class 7

Maths

English

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Question Text

Question 1 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbb9f59b460d7261ec8a.jpg' /> Observe the figure given above and label the part C.

Question 2 :
State True or False: Arteries and veins are joined by a network of capillaries.

Question 3 :
The rhythmic expansion and contraction of the heart is called ______.

Question 4 :
Name the structure which increases the surface area of the root for the absorbing of water.

Question 7 :
The blood from the heart is transported to all parts of the body by the ______.

Question 8 :
Kidneys eliminate the waste materials in the liquid form called ______.

Question 9 :
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?

Question 11 :
Water reaches great heights in the trees because of suction pull caused by ______.

Question 12 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbb4f59b460d7261ec84.jpg' /> In the above figure, human excretory system is depicted. Label the parts 3 and 4.

Question 16 :
Water absorption through roots can be increased by keeping the plants ______.

Question 20 :
Paheli noticed water being pulled up by a motor pump to an overhead tank of a five storeyed building. She wondered how water moves up to great heights in the tall trees standing next to the building. Can you tell why?

Question 21 :
The roots of a plant take up oxygen from the _____ trapped between the _____ particles

Question 24 :
During heavy exercise, we get cramps in the legs due to the accumulation of:

Question 25 :
State true or false:The process of breakdown of food in the cell with the release of energy is called cellular respiration.

Question 26 :
State true or false:Plants carry out photosynthesis only during the day and respiration only at night.

Question 28 :
On an average, an adult human being at rest breathes 15-18 times per minute. The breathing rate, however, may differ under different conditions. Arrange the following activities in order of increasing breathing rates and give reason for your answer. sleeping, cycling, brisk walk, watching TV.

Question 29 :
Normal range of breathing rate per minute in a normal adult at rest is

Question 30 :
Name the tiny pores in the leaves through which exchange of gases takes place.

Question 39 :
Which of the following is the main respiratory organ in humans?

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