7th Grade > Biology
TRANSPORTATION IN ANIMALS AND PLANTS MCQs
Total Questions : 111
| Page 3 of 12 pages
Answer: Option A. -> True
:
A
Theaortais the largest artery in our body. It conveys oxygenated blood from the heart to the smaller arteries which takes it to all other parts of the body.
:
A
Theaortais the largest artery in our body. It conveys oxygenated blood from the heart to the smaller arteries which takes it to all other parts of the body.
Answer: Option D. -> Fishes
:
D
All the nitrogenous wastes in the fishes are converted into ammonia before it is excreted out into the water. This ammonia directly dissloves in the water. Birds and lizards excrete nitrogenous wastes as uric acid. The excretory product in humans is urea.
:
D
All the nitrogenous wastes in the fishes are converted into ammonia before it is excreted out into the water. This ammonia directly dissloves in the water. Birds and lizards excrete nitrogenous wastes as uric acid. The excretory product in humans is urea.
Answer: Option D. -> capillaries
:
D
Arteries transport oxygenated blood to all parts of the body form the heart. On reaching the tissues, arteries divide into capillaries. After delivering oxygen, now the capillaries join to form veins. The veins carry the carbon dioxide rich blood to the heart.
:
D
Arteries transport oxygenated blood to all parts of the body form the heart. On reaching the tissues, arteries divide into capillaries. After delivering oxygen, now the capillaries join to form veins. The veins carry the carbon dioxide rich blood to the heart.
Answer: Option C. -> Chest cavity
:
C
The heart is located in the chest cavity, also called thoracic cavity. It is protected by the rib cage. Chest cavity also houses the lungs.
:
C
The heart is located in the chest cavity, also called thoracic cavity. It is protected by the rib cage. Chest cavity also houses the lungs.
Answer: Option C. -> I, II and IV
:
C
Transpirationis defined as the process where plants expel excess water aswater vapor through pores in their leaves called stomata.This process removes excess water,creates a suction pull to help in the transport of water upwardsand coolsdown the plant. The phloem tissues help in the transport of food.
:
C
Transpirationis defined as the process where plants expel excess water aswater vapor through pores in their leaves called stomata.This process removes excess water,creates a suction pull to help in the transport of water upwardsand coolsdown the plant. The phloem tissues help in the transport of food.
Answer: Option D. -> Water
:
D
Plasma is the fluid component of the blood. It is derived when all the blood cells - red blood cells, white blood cells and platelets are separated from whole blood. The remaining straw-coloured fluid is 90–92 percent water and dissolved nutrients, proteins, waste products and hormones.
:
D
Plasma is the fluid component of the blood. It is derived when all the blood cells - red blood cells, white blood cells and platelets are separated from whole blood. The remaining straw-coloured fluid is 90–92 percent water and dissolved nutrients, proteins, waste products and hormones.
:
Each point: 1 Mark
Blood vessels carry blood to different parts of the body.
There are three major types of blood vessels.
a. The arteries, which carry blood away from the heart
b. The capillaries, which enable the actual exchange of oxygenand nutrientsbetween the blood and the cells
c. The veins, which carry blood from the capillaries back towards the heart.
Question 28. Answer the follwoing questions: [5 MARKS]
1.Where is urine formed?
2. Where is urine stored?
3. Which part of the excretory system is responsible for the transport of urine from the kidneys to the bladder?
4. What is the normal composition of urine?
5. What is the major excretory product in humans?
1.Where is urine formed?
2. Where is urine stored?
3. Which part of the excretory system is responsible for the transport of urine from the kidneys to the bladder?
4. What is the normal composition of urine?
5. What is the major excretory product in humans?
:
Each answer: 1 Mark
1. Urine is formed in the kidneys.
2. Urine is stored in the urinary bladder.
3. The ureters transport the urine formed in the kidneys to the bladder.
4. The normal composition of urine is consists of 95% of water, 2.5 % of urea and 2.5% of other waste products.
5. The major excretory product in humans is urea.
:
Location: 1 Mark
Process: 2 Marks
Plants absorb water and mineral nutrients from the soil through the roots and transport it to the leaves. The leaves prepare food for the plants, using water and carbon dioxide in the presence of sunlight and chlorophyll. This process is called photosynthesis. The prepared food is in the form of glucose.
:
Each answer: 1 Mark
1. The major excretory product of fishes is ammonia.
2. The major excretory product of birds is uric acid.
3. The major excretory product of humans is urea.
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