FLOWERING PLANTS (2) O.Q

1) Define a flower.

2) The figure below represents the longitudinal section of a flower.

i) Label the parts 1 to 10.

ii) Name the four whorls of the floral parts of the flower 

iii) Name the male and the female parts.

2) Give the collective name of each of the following in a flower.

a) stamens 

b) carpels 

c) sepals 

d) petals 

3) Distinguish between each of the following pairs:

a) a complete and a incomplete flower 

b) a bract and a bractiole.

c) calyx and epicalyx.

d) a staminate and a pistillate flower 

e) a regular and an irregular flower 

4) State which of the statements are true or false:

a) the stalk of a flower is called Petiole.

b) The function of a flower is only to attract insects.

c) The calyx which is green manufactures food.

d) The pistil and the gynoecium are one and the same.

e) The receptive part of a carpel is the stigma.

f) pollination is the fusion of two pollen grains.

g) seeds are produced by the anthers lobes.

h) The receptacle is the other name for thalamus.

5) Draw labelled diagram to represent 

a) a pistil 

b) a Stamen

6) The diagram below represent the flower and the ploral parts shown separately.

a) What do the diagram A, B, C and D represents ?

b) Label the parts in A, C and D to which the guidelines point.

c) What is the importance of the peculiar adaptation of the shape and the structure of the petals and staminal tube in the flower ?

7) The figure alongside represents the cross-section of an anther. Label the part 1 to 4.

i) State whether it is a male or a female organ.

ii) How are pollen grains usual ejected?

iii) What is the collective name for the organs of this kind ?

iv) How are the pollen grains structurally adapted for pollination and later for fertilization ?

v) Are the contents (1) lodged in part 2 male or female ?

8) What is the name of the stalk which holds a flower up?

9) What is the function of the anther in a flower?

10) What is carpel?

11) What is an ovule?

12) What is inflorescence?

13) Given here are diagrams showing six different types of inflorescence, Name them;

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