7th Grade > Biology
TRANSPORTATION IN ANIMALS AND PLANTS MCQs
Total Questions : 111
| Page 1 of 12 pages
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Each point: 1 Mark
Root hairs are the hair-like outgrowths of a plantroot.
They are the tubular extensions of the epidermis that greatly increase the surface area of theroot. This increases the amount of water and nutrients that the plant can absorb from the soil.
Answer: Option B. -> Ureters
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B
Urine is formed in the kidneys. The ureters carry it to the urinary bladder where it is collected and stored. From the bladder, urethra expels it out of the body.
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B
Urine is formed in the kidneys. The ureters carry it to the urinary bladder where it is collected and stored. From the bladder, urethra expels it out of the body.
Answer: Option A. -> True
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A
Red blood cells contain a pigment called haemoglobin, which is responsible for the red colour of the blood. Haemoglobin can bind with oxygen and carbon dioxide and transport them across the body. Haemoglobin carries oxygen from the lungs to all parts of the body and carbon dioxide from all parts of the body to the lungs.
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A
Red blood cells contain a pigment called haemoglobin, which is responsible for the red colour of the blood. Haemoglobin can bind with oxygen and carbon dioxide and transport them across the body. Haemoglobin carries oxygen from the lungs to all parts of the body and carbon dioxide from all parts of the body to the lungs.
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Location: 1 Mark
Structure: 1 Mark
Function: 1 Mark
Kidneysare the bean-shaped organsthat are located in the upper abdominal area. They sit opposite each other on both the left and right side of the body; the right kidney, however, sits a little lower than the left to accommodate the size of the liver.
Theyfilter wastes, including urea, salts, and excess water,which are flushed out of the body as urine.
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Circulation of blood is essential for the transportation ofnutrients and oxygen to various parts of the body. It also transports waste for removal from the body.
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Each point: 1 Mark
Phloemis one of the two types of vasculartissue inplants.It transports food formed in the leaves to the other parts of the plants.
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Each point: 1 Mark
Pulmonary circulation is the portion of the cardiovascular system which carries deoxygenated blood away from the heart, to the lungs, and returns oxygenated (oxygen-rich) blood back to the heart.
The other type of circulation is systemic circulation. In this, oxygenated blood from the heart is carried to all the parts of the body.
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The fluid part of the blood is called plasma. It is yellow in colour.
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Each point: 1 Mark
Transpiration is the process of loss of water as water vapour from the aerial parts of the plant.
Plants absorb minerals, nutrients, and water from the soil. All the water is notutilized by the plant. The excess water getsevaporatedthrough the stomata present on the surface of the leaves by theprocess of transpiration.
This process also helps in cooling of the plants.
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Description: 1 Mark
Functions: 2 Marks
The tiny holes or openings present on the leaves of the plants are called stomata.
Two functions of stomata are:
1. They helpin transpiration.
2. They help in exchange of gases.
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