Revision test for class X

Do it in your notebook and soon i will send you answers to be checked by your parents .Post your marks in blog having marking scheme with your name and section for record     MM 20

Q1 What is the first step of photosynthesis?(1)

Q2 Name the source of oxygen released during photosynthesis?(1)

Q3 What are the functions of stomata ?(1)

Q4 what controls the opening and closing of stomata?(1)

Q5 where is bile produced and what is its function ?(2)

Q6 Write the name of movement shown by Oesophagus when food passes through it?(1)

Q7 Where is aerobic respiration occurs and what are its end products?(2)

Q8 Where does exchange of gases occur in human lungs ?(1)

Q9 Write the three features of respiratory surface?(3)

Q10 Write the function of following (5)
(1)Epiglottis
(2)Diaphragm
(3)cartilagenous rings in trachea
(4)Larynx
(5)Ribs

Q11Write the function of Hcl produced in stomach and how stomach protects its lining from it's harmful effects?(2)