Indicate whether the following statements are true or false by placing a tick (✓) in the appropriate box in each case - Leaving Cert Biology - Question 6 - 2021
Question 6
Indicate whether the following statements are true or false by placing a tick (✓) in the appropriate box in each case.
(a) Adrenaline is secreted into the blood whe... show full transcript
Worked Solution & Example Answer:Indicate whether the following statements are true or false by placing a tick (✓) in the appropriate box in each case - Leaving Cert Biology - Question 6 - 2021
Step 1
Indicate whether the statement is true or false: (a) Adrenaline is secreted into the blood when experiencing a threat.
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Answer
True. Adrenaline is a hormone released by the adrenal glands during stressful situations, and it prepares the body for a 'fight or flight' response.
Step 2
Indicate whether the statement is true or false: (b) Plants are producers; however, they still need mitochondria.
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Answer
True. While plants produce their own food through photosynthesis, they also require mitochondria for cellular respiration to convert the energy from glucose into a usable form.
Step 3
Indicate whether the statement is true or false: (c) Neurotransmitters are transported in the blood.
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Answer
False. Neurotransmitters typically act locally in the synaptic cleft of neurons and are not transported in blood; they function by transmitting signals between nerve cells.
Step 4
Indicate whether the statement is true or false: (d) A potato is a root modified to store food.
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Answer
True. Potatoes are tubers, which are thickened underground stems that serve as storage organs for nutrients, primarily starch.
Step 5
Indicate whether the statement is true or false: (e) Tissue culture involves growing cells on an artificial medium.
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Answer
True. Tissue culture is a technique that allows for the growth of cells in a controlled environment, using a nutrient-rich medium.
Step 6
Indicate whether the statement is true or false: (f) There are four bones in the middle ear.
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Answer
True. The middle ear contains three tiny bones: the malleus, incus, and stapes, commonly referred to as the hammer, anvil, and stirrup.
Step 7
Indicate whether the statement is true or false: (g) Monocotyledonous plants are almost always herbaceous.
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Answer
True. Monocotyledons typically include many herbaceous plants, although some can be woody, they generally have soft, green stems.
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