Chapter 7 Transportation in Animals and Plants Question/Answer with Important Points

Important points for learning the question from Transportation in Animals and Plants

Ammonia – A colorless gas with a strong smell, often used in cleaning products. (अमोनिया)
Artery – A blood vessel that carries blood away from the heart. (धमनी)
Blood – The red fluid that circulates in the body, carrying oxygen and nutrients. (रक्त)
Blood vessels – Tubes in the body through which blood flows. (रक्त वाहिकाएं)
Capillary – A tiny blood vessel where the exchange of gases and nutrients occurs. (केशिका)
Circulatory system – The system that circulates blood throughout the body. (परिसंचरण तंत्र)
Dialysis – A medical process that removes waste from the blood when the kidneys fail. (डायलिसिस)
Excretion – The process of removing waste products from the body. (मलत्याग)
Excretory system – The system that removes waste products from the body. (मूत्रवर्धक तंत्र)
Haemoglobin – A protein in red blood cells that carries oxygen. (हीमोग्लोबिन)
Heart beat – The rhythmic contraction and relaxation of the heart. (हृदय की धड़कन)
Kidneys – Organs that filter waste from the blood to produce urine. (गुर्दे)
Phloem – Tissue in plants that transports nutrients and sugars. (प्रवाहक)
Plasma – The liquid part of blood that carries cells and nutrients. (प्लाज्मा)
Platelets – Small blood cells that help in clotting. (रक्त कणिकाएं)
Pulse – The rhythmic throbbing of the arteries as blood is pumped through them. (नाड़ी)
Red blood cell – A cell in the blood that carries oxygen. (लाल रक्त कोशिका)
Root hair – A small hair-like structure on plant roots that absorbs water and nutrients. (जड़ रोम)
Stethoscope – A medical instrument used to listen to heart and lung sounds. (यंत्र)
Sweat – The salty fluid produced by sweat glands to cool the body. (पसीना)
Tissue – A group of cells that perform a specific function in the body. (ऊतक)
Urea – A waste product formed in the liver and excreted in urine. (यूरिया)
Ureter – The tube that carries urine from the kidney to the bladder. (मूत्रवाहिनी)
Urethra – The tube that carries urine from the bladder out of the body. (मूत्रमार्ग)
Uric acid – A waste product formed from the breakdown of purines, excreted in urine. (यूरिक अम्ल)
Urinary bladder – The organ that stores urine before it is excreted. (मूत्राशय)
Vein – A blood vessel that carries blood back to the heart. (शिरा)
White blood cell – A cell in the blood that fights infections. (श्वेत रक्त कोशिका)
Xylem – Tissue in plants that transports water and minerals. (जाइलम)

Exercise Question With Answers:👉

1. Match Structures Given in Column I with Functions Given in Column II

Column I	Column II
(a) Stomata	(i) Absorption of water
(b) Xylem	(ii) Transpiration
(c) Root hairs	(iii) Transport of food
(d) Phloem	(iv) Transport of water
	(v) Synthesis of carbohydrates

Correct Match:

Column I	Column II
(a) Stomata	(ii) Transpiration
(b) Xylem	(iv) Transport of water
(c) Root hairs	(i) Absorption of water
(d) Phloem	(iii) Transport of food

2. Fill in the Blanks

(i) The blood from the heart is transported to all parts of the body by the arteries.

(ii) Haemoglobin is present in red blood cells.

(iii) Arteries and veins are joined by a network of capillaries.

(iv) The rhythmic expansion and contraction of the heart is called heartbeat.

(v) The main excretory product in human beings is urea.

(vi) Sweat contains water and salts.

(vii) Kidneys eliminate the waste materials in the liquid form called urine.

(viii) Water reaches great heights in the trees because of suction pull caused by transpiration.

3. Choose the Correct Option

(a) In plants, water is transported through

(i) xylem

(b) Water absorption through roots can be increased by keeping the plants

(iii) under the fan

4. Why is Transport of Materials Necessary in a Plant or in an Animal? Explain.

Transport of materials is necessary in plants and animals to distribute essential nutrients, gases, and water to different parts of the body or plant, ensuring survival and proper functioning. In animals, it includes the transport of oxygen, nutrients, hormones, and the removal of waste products. In plants, it includes the movement of water, minerals, and food to support growth, photosynthesis, and other physiological processes.

5. What Will Happen if There Are No Platelets in the Blood?

If there are no platelets in the blood, the process of blood clotting would be impaired. This means that in case of any injury or cut, blood would not clot properly, leading to excessive bleeding and an increased risk of severe blood loss or infection.

6. What Are Stomata? Give Two Functions of Stomata.

Stomata are small openings found on the surface of leaves and stems in plants.

Functions:

Gas Exchange: Stomata allow the exchange of gases (oxygen and carbon dioxide) between the plant and the atmosphere, which is crucial for photosynthesis and respiration.
Transpiration: Stomata facilitate the process of transpiration, where water vapor is lost from the plant to the atmosphere, helping in cooling the plant and aiding in the uptake of water and minerals from the roots.

7. Does Transpiration Serve Any Useful Function in the Plants? Explain.

Yes, transpiration serves several useful functions in plants:

Cooling the Plant: It helps in cooling the plant on hot days.
Water and Nutrient Uptake: It creates a negative pressure in the leaves that pulls water and dissolved nutrients from the roots up through the plant.
Maintaining Turgidity: It helps maintain turgidity in cells, which is essential for maintaining the structure and stability of the plant.

8. What Are the Components of Blood?

The components of blood include:

Red Blood Cells (RBCs): Carry oxygen from the lungs to the rest of the body and return carbon dioxide from the body to the lungs.
White Blood Cells (WBCs): Part of the immune system, they help fight infections and other diseases.
Platelets: Help in blood clotting to prevent excessive bleeding.
Plasma: The liquid portion of blood that transports cells, nutrients, hormones, and waste products.

9. Why Is Blood Needed by All Parts of the Body?

Blood is needed by all parts of the body to:

Supply Oxygen and Nutrients: Transport oxygen and essential nutrients to cells.
Remove Waste: Carry away carbon dioxide and other waste products from cells.
Fight Infections: Deliver immune cells to fight infections.
Regulate Temperature and pH: Help maintain body temperature and pH balance.

10. What Makes the Blood Look Red?

Blood looks red due to the presence of hemoglobin in red blood cells. Hemoglobin is a protein that binds to oxygen and gives blood its red color when oxygenated.

11. Describe the Function of the Heart.

The heart functions as a pump to circulate blood throughout the body. It receives deoxygenated blood from the body and pumps it to the lungs for oxygenation. It then receives oxygenated blood from the lungs and pumps it to the rest of the body to supply oxygen and nutrients to tissues and organs.

12. Why Is It Necessary to Excrete Waste Products?

It is necessary to excrete waste products to:

Prevent Toxicity: Remove harmful substances that could accumulate and become toxic.
Maintain Homeostasis: Regulate the balance of water, salts, and other substances to maintain internal stability and proper functioning of cells and organs.
Support Metabolic Processes: Ensure the continuous and efficient functioning of metabolic processes by removing by-products.

13. Draw a Diagram of the Human Excretory System and Label the Various Parts.

Here is a diagram of the human excretory system with labeled parts:

Labeled Parts:1 Kidneys 2. Ureters 3. Urinary bladder 4. Urethra

Other Chapter Question Answers: 👉