Biology 5090/21 — October/November 2010
Cambridge O-Level · Theory · worked solutions for every part, with the mark scheme
9
questions
80
marks
105
minutes
Topics Human Nutrition · Coordination and Control · Inheritance · Plant Nutrition · Sexual Reproduction in Plants · Organisms and Their Environment · +5 more
Q113MSexual Reproduction in PlantsFree sample
Fig. 1.1(a) shows a flower very shortly after it has opened and Fig. 1.1(b) shows the same flower when it is several days older.
(a)2M
On Fig. 1.1(b), label a filament and a sepal.
(b)2M
State two features of the flower in Fig. 1.1(a) that could have attracted the insect.
- ______
- ______
(c)
Using information in Fig. 1.1(a) and Fig. 1.1(b)
(i)4M
explain why flowers of this plant are rarely self-pollinated
(ii)5M
suggest how the insect brings about pollination in this species of plant.
The rest of this paper
8 more questions- Q2Human Nutrition · Organisms and Their Environment11M
- Q3Human Nutrition · Coordination and Control9M
- Q4Inheritance7M
- Q5Transport in Flowering Plants · Plant Nutrition10M
- Q6Inheritance · Disease and Immunity10M
- Q7Coordination and Control10M
- Q8(option-1)Plant Nutrition · Respiration10M
- Q8(option-2)Cell Structure and Organisation · Transport in Humans10M
Loading the full paper…