Answer any five of the following parts (a) to (f):
(a) Name a protein that has a fibrous structure - Leaving Cert Biology - Question 1 - 2017
Question 1
Answer any five of the following parts (a) to (f):
(a) Name a protein that has a fibrous structure.
(b) Where in the human body would you expect to find the fibrou... show full transcript
Worked Solution & Example Answer:Answer any five of the following parts (a) to (f):
(a) Name a protein that has a fibrous structure - Leaving Cert Biology - Question 1 - 2017
Step 1
Name a protein that has a fibrous structure.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
A commonly known fibrous protein is keratin, which is found in hair, nails, and skin.
Step 2
Where in the human body would you expect to find the fibrous protein referred to above?
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Keratin is primarily found in the outer layer of the skin, as well as in hair and nails.
Step 3
Give a role of a named mineral, other than calcium, which is required by plants.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Mineral: Magnesium (Mg).
Role: Magnesium is essential for plants as it is a key component of chlorophyll, which is necessary for photosynthesis.
Step 4
State two reasons why water is required by living organisms.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
(i) Water acts as a solvent for biochemical reactions, facilitating the transportation of nutrients.
(ii) It helps maintain temperature regulation and turgor pressure in cells, which is crucial for plant support.
Step 5
Name the metallic element present in haemoglobin.
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The metallic element present in haemoglobin is iron (Fe).
Step 6
Which type of food biomolecule may be identified by the use of Benedict’s or Fehling’s solution?
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Benedict’s or Fehling’s solution is used to identify reducing sugars in a sample.
Join the Leaving Cert students using SimpleStudy...
