4th UNIT TEST
BIOLOGY
Q1) Name the following:(4×1=4)
a) Respiratory process in which oxygen is utilized-
b) The microscopic air- sacs in the lungs-
c) The by- products formed during the oxidation of food-
d)They support the plants to climb-
Q2) Differentiate between:( ,only 2 difference) (3×2=6)
a) Respiration and Breathing
b) Inhalation and Exhalation
c) Reticulate Venetion and Parallel Venetion-
Q3) Answer the following:
a) Why do our body cells require oxygen?(2)
b) What is the role of epiglottis during swallowing of food?(2)
c) What are the functions of the following;(6)
i) spines ii) diaphragm iii) tendrils
Answers
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a.Cellular respiration
Explanation:
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