c) (i) What is meant by the term homeostasis?
(ii) Give one reason why homeostasis is essential in living organisms - Leaving Cert Biology - Question c - 2021
Question c
c) (i) What is meant by the term homeostasis?
(ii) Give one reason why homeostasis is essential in living organisms.
The diagram below shows the under surface of a ... show full transcript
Worked Solution & Example Answer:c) (i) What is meant by the term homeostasis?
(ii) Give one reason why homeostasis is essential in living organisms - Leaving Cert Biology - Question c - 2021
Step 1
What is meant by the term homeostasis?
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Answer
Homeostasis refers to the process by which living organisms maintain a constant (or balanced) internal environment despite changes in external conditions.
Step 2
Give one reason why homeostasis is essential in living organisms.
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Answer
Homeostasis is essential because it allows metabolic processes for enzymes to function optimally, ensuring the survival and proper functioning of the organism.
Step 3
Name the small openings labelled X through which gas exchange occurs.
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Answer
The small openings labelled X are known as stomata.
Step 4
Name one gas excreted through these small openings during respiration.
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Answer
Carbon dioxide or water vapor is excreted through these small openings during respiration.
Step 5
Name the cells labelled Y that regulate the size of these small openings.
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Answer
The cells labelled Y that regulate the size of these openings are called guard cells.
Step 6
Name the openings in stems through which gas exchange occurs.
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The openings in stems through which gas exchange occurs are known as lenticels.
Step 7
State any two ways in which plants have adapted to protect themselves.
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Answer
Plants have adapted to protect themselves by developing thorns, cuticles, heat shock proteins, stings, bark, and other protective features.
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