Answer any five of the following parts (a) to (f):
(a) Identify one difference between fats and oils at room temperature - Leaving Cert Biology - Question 1 - 2021
Question 1
Answer any five of the following parts (a) to (f):
(a) Identify one difference between fats and oils at room temperature.
(b) Triglycerides and phospholipids are t... show full transcript
Worked Solution & Example Answer:Answer any five of the following parts (a) to (f):
(a) Identify one difference between fats and oils at room temperature - Leaving Cert Biology - Question 1 - 2021
Step 1
Identify one difference between fats and oils at room temperature.
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Answer
Fats are solid and oils are liquid. This difference arises because fats contain saturated fatty acids, which are typically solid at room temperature, while oils contain unsaturated fatty acids that remain liquid.
Step 2
Identify one difference between a triglyceride and a phospholipid.
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Answer
Triglycerides consist of three fatty acids attached to a glycerol backbone, while phospholipids contain two fatty acids and a phosphate group attached to a glycerol. This phosphate group gives phospholipids their unique amphipathic nature.
Step 3
Identify one metabolic role for lipids in cells.
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Answer
One metabolic role of lipids in cells is to provide energy. Lipids serve as a major energy storage form, which can be broken down to release energy when needed.
Step 4
Name one fat-soluble vitamin present in food.
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Answer
Vitamin A is one example of a fat-soluble vitamin found in food.
Step 5
Name one disorder associated with a deficiency of the vitamin named at part (d) above.
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Answer
A deficiency of Vitamin A can lead to Night blindness.
Step 6
Name one element present in dissolved salts in food.
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Answer
Sodium (Na) is one element commonly present in dissolved salts in food.
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