Indicate whether the following are true (T) or false (F) by drawing a circle around T or F - Leaving Cert Biology - Question 3 - 2005
Question 3
Indicate whether the following are true (T) or false (F) by drawing a circle around T or F.
a) Urea is formed in the kidneys.
b) Motor neurons conduct impulses tow... show full transcript
Worked Solution & Example Answer:Indicate whether the following are true (T) or false (F) by drawing a circle around T or F - Leaving Cert Biology - Question 3 - 2005
Step 1
a) Urea is formed in the kidneys.
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Answer
This statement is False. Urea is primarily formed in the liver as a product of protein metabolism.
Step 2
b) Motor neurons conduct impulses towards the central nervous system.
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Answer
This statement is False. Motor neurons transmit impulses away from the central nervous system to muscles or glands.
Step 3
c) Endocrine glands secrete hormones.
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This statement is True. Endocrine glands are responsible for producing and secreting hormones directly into the bloodstream.
Step 4
d) Tendons join muscles to bones.
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This statement is True. Tendons connect skeletal muscles to bones, enabling movement.
Step 5
e) The sino-atrial node (pacemaker) is located on the right side of the heart.
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Answer
This statement is True. The sino-atrial node is located in the right atrium of the heart and regulates heartbeat.
Step 6
f) A nucleus is absent from human red blood cells.
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This statement is True. Human red blood cells lose their nuclei during maturation to maximize space for hemoglobin.
Step 7
g) Light is essential for the germination of seeds.
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Answer
This statement is False. While light can promote seedling growth, many seeds can germinate in darkness.
Step 8
h) Lenticels serve the same function as stomata.
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Answer
This statement is True. Lenticels allow for gas exchange in stems, similar to the function of stomata in leaves.
Step 9
i) Parallel leaf veins are characteristic of monocotyledonous plants.
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This statement is True. Monocots typically exhibit parallel vein patterns in their leaves.
Step 10
j) Endosperm is a food reserve in some seeds.
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Answer
This statement is True. Endosperm provides essential nutrients for the developing plant embryo after germination.
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