Question

Class 7 Science MCQ Questions of Transportation in Animals and Plants with Answer?

Answer 1

Class 7 Science MCQ Questions of Transportation in Animals and Plants with Answer were arranged dependent on the most recent exam pattern. We have compiled the MCQ Questions for Class 7 Science Transportation in Animals and Plants with Answers covering the whole syllabus and These MCQ Questions with Answers to assist understudies with understanding the idea well indeed. 

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Practice MCQ Questions for Class 7 Science

1. Which of the following is the main circulatory fluid in our body ?

(a) Plasma
(b) Lymph
(c) Blood
(d) None of these

2. Which one of the following contains haemoglobin?

(a) RBC
(b) WBC
(c) Platelets
(d) None of these.

3. What is the function of WBCs?

(a) Transport of oxygen
(b) Fight against germs
(c) Involved in blood clotting
(d) All of these

4. Blood platelets help in

(a) formation of urine
(b) excretion of urine
(c) sweating
(d) blood clotting

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

(a) kidney
(b) ureter
(c) urethra
(d) urinary bladder

6. They are pipe-like, consisting of a group of specialised cells. They transport substances and form a two-way traffic in plants. Which of the following terms qualify for the features mentioned above?

(a) Xylem tissue
(b) Vascular tissue
(c) Root hairs
(d) Phloem tissue.

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

(a) veins
(b) arteries
(c) heart
(d) capillaries

8. In which of the following parts of human body are sweat glands absent?

(a) Scalp
(b) Armpits
(c) Lips
(d) Palms

9. 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

10. Aquatic animals like fish excrete their wastes in gaseous form as

(a) Oxygen
(b) Hydrogen
(c) Ammonia
(d) Nitrogen

11. Blood carries _____________ from lungs to the cells of the body 

(a) Argon
(b) Neon
(c) Carbon dioxide 
(d) oxygen

12.  The fluid part of the blood is called

(a) Plasma 
(b) RBC 
(c) WBC 
(d) Blood Platelets

13. The blood vessels which carry oxygen –rich blood from the heart to all parts of the body are called

(a) Arteries
(b) Veins
(c) RBC
(d) WBC 

14. White patches formed in areas like underarms are due to  

(a) Salts present in the sweat
(b) sugars present in the sweat
(c) Acids present in the sweat
(d) Bases present in the sweat

15. The effect of sweat on the human body is

(a) It causes cooling
(b) it causes heating
(c) it causes freezing
(d) It causes melting

16. The uric acid excreted by lizards is

(a) White in colour
(b) Red in colour
(c) Brown in Colour
(d) Black in colour

17. The vascular tissue for the transport of water and nutrients in the plant is called

(a) Xylem
(b) Phloem
(c) Tissue
(d) Plasma

18. The process by which a plant loses water through the stomata is called:

(a) excretion
(b) transpiration
(c) respiration
(d) sweating

19. The number of beats _______ is called the pulse rate.

(a) Per two minutes
(b) Per three minutes
(c) Per minute
(d) Per four minutes

20. Name an instrumental device used to amplify the sound of heart.

(a) Stethoscope
(b) UV machine
(c) Both (a) and (b)
(d) Ultrasound machine

21.What is the state of the blood?

(a) Solid
(b) Fluid
(c) Gas
(d) None of these

22. Which blood group is called as universal donor?

(a) O
(b) A
(c) B
(d) AB

23. The heart is located in the

(a) chest cavity
(b) stomach
(c) lungs
(d) all of these

24. How many chambers does the human heart have?

(a) Three
(b) Four
(c) Five
(d) Two

25.Which of the following are the tiny filtering units of the kidney?

(a) ureters
(b) bladder
(c) nephrons
(d) urethra

Answer 2

1. Answer: (c) Blood

Explanation: Blood is the fluid connective tissue and main circulatory fluid that transports oxygen, waste and nutrients through out the body.

2. Answer: (a) RBC

Explanation: RBC contains hemoglobin. Hemoglobin can be described as a protein which is an integral part of the red blood cells.

3. Answer: (b) Fight against germs  

Explanation: They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health. When your body is in distress and a particular area is under attack, white blood cells rush in to help destroy the harmful substance and prevent illness.

4. Answer: (d) blood clotting

Explanation: Platelets are tiny blood cells that help your body form clots to stop bleeding. If one of your blood vessels gets damaged, it sends out signals to the platelets. The platelets then rush to the site of damage and form a plug (clot) to fix the damage.

5. Answer: (c) urethra

Explanation: From the kidneys, the urine goes into the urinary bladder through tube-like ureters. It is stored in the bladder and is passed out through the urinary opening at the end of a muscular tube called the urethra.

6. Answer: (d) Phloem tissue

Explanation: Phloem tissue is a heterogeneous vascular tissue and complex tissue. It performs as a transport system for every soluble organic compound within vascular plants.

7. Answer: (d) capillaries

Explanation: Exchange of gases, nutrients, and waste between blood and tissue occurs in the capillaries.

8. Answer: (c) Lips

Explanation: Lips are the part of human body where sweat glands are absent.

9. Answer: (c) Suction force

Explanation:  Explanation: Roots absorb water and minerals from the soil continuously. Evaporation of water from leaves creates a suction force which causes the water to move upwards.

10. Answer: (c) Ammonia

Explanation: Aquatic animals perform the procedure of 'Excretion' depending on the availability and unavailability of water. They excrete there waste in the form of ammonia.

11. Answer: (d) oxygen

Explanation: The blood transports oxygen from the lungs to the cells of the body, where it is needed for metabolism. The carbon dioxide produced during metabolism is carried back to the lungs by the blood, where it is then exhaled (breathed out).

12. Answer: (a) Plasma 

Explanation: The liquid part, called plasma, is made of water, salts, and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells, and platelets. Red blood cells (RBC) deliver oxygen from your lungs to your tissues and organs.

13. Answer: (a) Arteries

Explanation: Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body's tissues.

14. Answer: (a) Salts present in the sweat

Explanation: Sweat contains water and salts. The water of sweat evaporates, leaving behind the salts which appear as white patches on our clothes.

15. Answer: (a) It causes cooling

Explanation: Its main function is to control body temperature. As the water in the sweat evaporates, the surface of the skin cools. An additional function of sweat is to help with gripping, by slightly moistening the palms.

16. Answer: (a) White in colour

Explanation:  Nitrogenous wastes in the body tend to form toxic ammonia, which must be excreted. Mammals such as humans excrete urea, while birds, reptiles, and some terrestrial invertebrates produce uric acid as waste. Uricothelic organisms tend to excrete uric acid waste in the form of a white paste or powder.

17. Answer: (a) Xylem

Explanation: Xylem is the tissue responsible for supporting the plant as well as for the storage and long-distance transport of water and nutrients, including the transfer of water-soluble growth factors from the organs of synthesis to the target organs.

18. Answer: (b) transpiration

Explanation: The process of losing water in the form of water vapour from stomata of the leaves is known as transpiration.

19. Answer: (c) Per minute

Explanation: Pulse is a term that signifies the throbbing of arteries as an effect of heartbeat and is counted by the number of beats per minute, which is called the pulse rate. The normal pulse rate (count of arterial pulse beats per minute) in a healthy adult at rest ranges from 72 to 80 beats per minute. However, the pulse rate may fluctuate with exercise, illness, injury and emotions. The pulse rate of an individual can be checked at various points on the body. These points are the neck, inside of the elbow, the wrist, groin, behind the knee, ankle joint and foot.

20. Answer: (a) Stethoscope

Explanation: Stethoscope, medical instrument used in listening to sounds produced within the body, chiefly in the heart or lungs.

21. Answer: (b) Fluid

Explanation: Your blood is made up of liquid and solids. The liquid part, called plasma, is made of water, salts, and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells, and platelets.

22. Answer: (a) O

Explanation: O negative blood is considered the universal blood donor type. It is compatible with all A, AB, B, and O positive blood types.

23. Answer: (a) chest cavity

Explanation: Your heart is located between your lungs in the middle of your chest, behind and slightly to the left of your breastbone (sternum). A double-layered membrane called the pericardium surrounds your heart like a sac.

24. Answer: (b) Four

Explanation: The heart has four chambers: two atria and two ventricles.

25. Answer: (c) nephrons

Explanation: The kidneys remove urea from the blood through tiny filtering units called nephrons. Each nephron consists of a ball formed of small blood capillaries, called a glomerulus, and a small tube called a renal tubule.

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