7th Grade > Biology
TRANSPORTATION IN ANIMALS AND PLANTS MCQs
Total Questions : 111
| Page 6 of 12 pages
Answer: Option A. -> Blood will not clot
:
A
The plateletsform a meshwork and release blood clotting chemicals at the site of injury and prevent further bleeding.If there is a decrease in platelet count in the blood, then the blood will not be able to clot.
:
A
The plateletsform a meshwork and release blood clotting chemicals at the site of injury and prevent further bleeding.If there is a decrease in platelet count in the blood, then the blood will not be able to clot.
Answer: Option C. ->
Bladder
:
C
:
C
The urinary bladder is an organ that collects and stores urine formed in the kidneys. Ureter is the duct through which urine passes from the kidney to the bladder. Urine is excreted through the urethra.
Answer: Option C. ->
They have valves
:
B, C, and D
Veins are blood vessels that carry carbon dioxide rich blood from all parts of the body back to the heart. The veins have thin walls. There are valves present in the veins that allows blood to flow only in one direction, towards the heart.
:
B, C, and D
Veins are blood vessels that carry carbon dioxide rich blood from all parts of the body back to the heart. The veins have thin walls. There are valves present in the veins that allows blood to flow only in one direction, towards the heart.
Answer: Option B. ->
Veins
:
B and C
A vein is a blood vessel that transports blood from all parts of the body to the heart. They carry deoxygenated blood back from the body to the heart. Pulmonary artey carries blood which is rich in carbon dioxide from the right ventricle of the heart to the lungs for oxygenation.
:
B and C
A vein is a blood vessel that transports blood from all parts of the body to the heart. They carry deoxygenated blood back from the body to the heart. Pulmonary artey carries blood which is rich in carbon dioxide from the right ventricle of the heart to the lungs for oxygenation.
Answer: Option A. ->
Phloem
:
A and B
:
A and B
Xylem and the phloem are the vascular or conducting tissues found in plants. Xylem transports water and dissolved minerals from the root to all parts of the plant. Phloem tranports the products of photosynthesis from leaves to all parts of the plant.
Answer: Option B. ->
Pulmonary artery
:
B
Arteries transport oxygen rich blood to all parts of the body from the heart. Veins transport carbon dioxide rich blood to the heart from all parts of the body.
Pulmonary artery is the only artery that carries carbon dioxide rich blood to lungs for re-oxygenation. Since pulmonary artery carries blood away from the heart, it is called artery and not a vein.
:
B
Arteries transport oxygen rich blood to all parts of the body from the heart. Veins transport carbon dioxide rich blood to the heart from all parts of the body.
Pulmonary artery is the only artery that carries carbon dioxide rich blood to lungs for re-oxygenation. Since pulmonary artery carries blood away from the heart, it is called artery and not a vein.
Answer: Option A. ->
True
:
A
Absorption of food occurs in the small intestine. The inner lining of small intestine has a large number of finger-like projections called villi. These villi provide a large surface area for absorption of food. The villi are richly supplied with blood vessels. The blood in the blood vessels absorbs the digested food from the small intestine and transports it other parts of the body.
:
A
Absorption of food occurs in the small intestine. The inner lining of small intestine has a large number of finger-like projections called villi. These villi provide a large surface area for absorption of food. The villi are richly supplied with blood vessels. The blood in the blood vessels absorbs the digested food from the small intestine and transports it other parts of the body.
Answer: Option D. ->
Left ventricle
:
D
Heart has four chambers- two upper atria and two lower ventricles. The right atrium receives deoxygenated blood from the body and pumps it to the right ventricle. The right ventricle pumps this deoxygenated blood into the lungs. Left atrium receives the oxygenated blood from the lungs and pumps it to the left ventricle, from where it is circulated to all parts of the body, through aorta.
:
D
Heart has four chambers- two upper atria and two lower ventricles. The right atrium receives deoxygenated blood from the body and pumps it to the right ventricle. The right ventricle pumps this deoxygenated blood into the lungs. Left atrium receives the oxygenated blood from the lungs and pumps it to the left ventricle, from where it is circulated to all parts of the body, through aorta.
Answer: Option D. ->
uric acid
:
D
Nitrogenous wastes in birds is excreted as a semi-solid, white coloured substance composed of uric acid.
The excretory product in humans is urea. The excretory product in fishes is ammonia.
:
D
Nitrogenous wastes in birds is excreted as a semi-solid, white coloured substance composed of uric acid.
The excretory product in humans is urea. The excretory product in fishes is ammonia.
Answer: Option B. ->
Right ventricle
:
B
The heart has 4 chambers - two atria and two ventricles. The right atrium receives deoxygenated blood from the body and pumps it to the right ventricle. The right ventricle pumps the oxygen deficient blood to the lungs for oxygenation.
:
B
The heart has 4 chambers - two atria and two ventricles. The right atrium receives deoxygenated blood from the body and pumps it to the right ventricle. The right ventricle pumps the oxygen deficient blood to the lungs for oxygenation.
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