Question

The diagram is set up to demonstrate an experiment. Pond weed was placed in five water-filled tubes. The experiment was set up as shown in the diagram. The tubes were then left for 24 hours. Write the correct answer out of the five available choices: 

(i) In which tube would you except to find the plant with the least amount of starch? 
(a ) 1 (b) 2 (c) 3 (d) 4 (e ) 5 

(ii) The tube in which most oxygen would be found is 
(a ) 1 (b) 2 (c) 3 (d) 4 (e ) 5 

(iii) The tube in which least carbon dioxide would be found is 
(a ) 1 (b) 2 (c) 3 (d) 4 (e ) 5 

(iv) The tube in which the plant would survive for the shortest length of time is 
(a ) 1 (b) 2 (c) 3 (d) 4 (e) 5 

Answer 1

(i) (e) 5
(ii) (a) 1
(iii) (b) 2
(iv) (e) 5