The diagram shows part of the human breathing system - Leaving Cert Biology - Question c - 2015
Question c
The diagram shows part of the human breathing system.
(i) Name the parts labelled A, B, C and D.
(ii) In which labelled part does gas exchange take place?
(iii) W... show full transcript
Worked Solution & Example Answer:The diagram shows part of the human breathing system - Leaving Cert Biology - Question c - 2015
Step 1
Name the parts labelled A, B, C and D.
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 = Larynx (or voice box), B = Trachea (or windpipe), C = Bronchus, D = Alveolus (or air sacs).
Step 2
In which labelled part does gas exchange take place?
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
Gas exchange takes place in part D (or alveolus).
Step 3
What is the function of part A?
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 function of part A (larynx) is to make sound.
Step 4
B and C have rings of cartilage. Suggest a function of these rings.
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 rings of cartilage serve to keep the trachea and bronchi open, maintaining an open airway.
Step 5
Suggest a reason why smoking cigarettes is bad for your lungs.
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
Smoking can cause serious health conditions such as cancer, emphysema, or chronic obstructive pulmonary disease (COPD).
Join the Leaving Cert students using SimpleStudy...
