15. (a)
(i) Name the growth response in which plant stems grow towards light - Leaving Cert Biology - Question 15 - 2022
Question 15
15.
(a)
(i) Name the growth response in which plant stems grow towards light.
(ii) How do plants benefit from increased light intensity?
(iii) Name another env... show full transcript
Worked Solution & Example Answer:15. (a)
(i) Name the growth response in which plant stems grow towards light - Leaving Cert Biology - Question 15 - 2022
Step 1
Name the growth response in which plant stems grow towards light.
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 growth response in which plant stems grow towards light is called phototropism.
Step 2
How do plants benefit from increased light intensity?
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
Plants benefit from increased light intensity as it enhances photosynthesis, leading to the production of more food for the plant.
Step 3
Name another environmental factor that regulates plant growth.
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
Another environmental factor that regulates plant growth is day length, gravity, or temperature.
Step 4
Name the tissues labelled A and 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
Tissue A is dermal tissue, while tissue B is ground tissue.
Step 5
State a function for each of the tissues you named at part (b) (i) above.
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 function of dermal tissue (A) is to provide protection, and the function of ground tissue (B) is for storage or support.
Step 6
Name the structure labelled C.
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
The structure labelled C is a vascular bundle.
Step 7
Name the cells found in structure C that transport water.
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 cells in structure C that transport water are xylem vessels or xylem tracheids.
Step 8
Name the cells found in structure C that transport food.
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 cells in structure C that transport food are phloem sieve tube cells (accept companion cells).
Step 9
State one way in which a section through a root would be different from the section above.
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
One way a section through a root would differ is that it would contain root hair cells to aid in water and nutrient absorption.
Step 10
State one reason why the diagram above represents a section through a dicotyledonous plant stem.
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 diagram represents a section through a dicotyledonous plant stem because it shows vascular bundles arranged in a ring.
Join the Leaving Cert students using SimpleStudy...
