enzymes

Question 1

explain why changes in temp will affect this investigation

Answer 1

-enzyme dependant reaction
-high temp may denature enzymes
-low temp results in particles having low kinetic -energy, hence rate decreases

Question 2

explain the role of pollen tube and nuclei in the formation of the endosperm nucleus

Answer 2

-pollen tube transports generative nucleus to ovary
-by releasing enzymes to digest the style tissue and obtain glucose for respiration to release ATP
-one of the male nuclei fertilizes the two polar nuclei causing the formation of a triploid endosperm

Question 3

explain why the pollen tube grows in the same direction after pollination

Answer 3

-it grows towards the micropyle
-pollen tube nucleus controls the realease of enzymes to dogest the style tissue

Question 4

how can you adjust the pH of a solution to a required value?

Answer 4

by diluting the solution