The diagram shows a section through a leaf - Leaving Cert Biology - Question b - 2017
Question b
The diagram shows a section through a leaf.
(i) Name the green pigment present in leaves that is essential for photosynthesis.
(ii) Name the cell structures, presen... show full transcript
Worked Solution & Example Answer:The diagram shows a section through a leaf - Leaving Cert Biology - Question b - 2017
Step 1
i) Name the green pigment present in leaves that is essential for photosynthesis.
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
The green pigment essential for photosynthesis in leaves is chlorophyll.
Step 2
ii) Name the cell structures, present in large numbers in the cells labelled A that are needed for photosynthesis.
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
The cell structures needed for photosynthesis present in large numbers in the cells labelled A are chloroplasts.
Step 3
iii) Name the opening labelled B that is used for gas exchange.
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
The opening labelled B that is used for gas exchange is called the stoma.
Step 4
iv) Name the cells labelled C that control the opening of B.
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
The cells labelled C that control the opening of B are known as guard cells.
Step 5
v) Name the gas in the air that is needed for photosynthesis.
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 gas in the air that is needed for photosynthesis is carbon dioxide.
Step 6
vi) In photosynthesis, water is split into three parts.
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
In photosynthesis, water is split into protons (H+), electrons, and oxygen.
Step 7
vii) From your knowledge of photosynthesis, suggest two ways of improving the rate of photosynthesis of plants in a greenhouse.
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
Two ways to improve the rate of photosynthesis in a greenhouse are to provide brighter light and increase carbon dioxide levels, as well as ensure a higher temperature.
Join the Leaving Cert students using SimpleStudy...
