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 when experiencing a threat. (b) Plants are producers; however, they still need mitochondria. (c) Neurotransmitters are transported in the blood. (d) A potato is a root modified to store food. (e) Tissue culture involves growing cells on an artificial medium. (f) There are four bones in the middle ear. (g) Monocotyledonous plants are almost always herbaceous.

Leaving Cert Biology Genetics, DNA & Evolution: Indicate whether the following s

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

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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

a) Adrenaline is secreted into the blood when experiencing a threat.

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Answer

This statement is true. Adrenaline, also known as epinephrine, is a hormone that is released into the bloodstream during stressful situations, preparing the body for a 'fight-or-flight' response.

Step 2

b) Plants are producers; however, they still need mitochondria.

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Answer

This statement is false. While plants are producers and perform photosynthesis to generate energy, they do utilize mitochondria for cellular respiration to convert the energy stored in glucose into usable ATP.

Step 3

c) Neurotransmitters are transported in the blood.

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Answer

This statement is false. Neurotransmitters primarily operate in the synapses between neurons; they are not transported in the blood but are released locally to transmit signals between nerve cells.

Step 4

d) A potato is a root modified to store food.

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Answer

This statement is true. Potatoes are tubers, which are specialized storage organs that store nutrients in the form of starch, functioning as a survival strategy.

Step 5

e) Tissue culture involves growing cells on an artificial medium.

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Answer

This statement is true. Tissue culture is a technique used to grow cells, tissues, or organs in an artificial medium outside the organism, allowing for the study and manipulation of biological processes.

Step 6

f) There are four bones in the middle ear.

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Answer

This statement is false. There are actually three bones in the middle ear known as the ossicles, which are the malleus, incus, and stapes.

Step 7

g) Monocotyledonous plants are almost always herbaceous.

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Answer

This statement is true. Most monocotyledonous plants, such as grasses and lilies, tend to be herbaceous, although there are some exceptions.

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

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

a) Adrenaline is secreted into the blood when experiencing a threat.

b) Plants are producers; however, they still need mitochondria.

c) Neurotransmitters are transported in the blood.

d) A potato is a root modified to store food.

e) Tissue culture involves growing cells on an artificial medium.

f) There are four bones in the middle ear.

g) Monocotyledonous plants are almost always herbaceous.

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