Identify and describe the uses of common laboratory instruments A, B, C, D, and E.

$$\boxed{\text{Pipette used to accurately measure and transfer liquid by drawing liquid to mark with filler, then releasing.}}$$

Question 3:

a) Name the parts labelled I, II, III, IV, V, VI and VII.

• I: Pedicel
• II: Sepal
• III: Ovary
• IV: Stigma
• V: Anther
• VI: Filament
• VII: Petal

$$\boxed{\text{I: Pedicel, II: Sepal, III: Ovary, IV: Stigma, V: Anther, VI: Filament, VII: Petal}}$$

b) Give one (1) function each of the parts labelled I, II, III, IV, V, VI and VII.

• I (Pedicel): Supports the flower.
• II (Sepal): Protects the flower bud.
• III (Ovary): Contains ovules and develops into fruit after fertilization.
• IV (Stigma): Receives pollen during pollination.
• V (Anther): Produces and contains pollen grains.
• VI (Filament): Supports the anther.
• VII (Petal): Attracts pollinators (e.g., insects) with its color and scent.

$$\boxed{\text{I: Supports flower, II: Protects bud, III: Contains ovules, IV: Receives pollen, V: Produces pollen, VI: Supports anther, VII: Attracts pollinators}}$$

c) State one (1) type by which the flower is pollinated.
The flower is likely pollinated by insects.

$$\boxed{\text{Insect pollination}}$$

d) Describe two (2) advantages to the type of pollination stated in (c) above.
Two advantages of insect pollination are:

• Efficiency: Insects can directly transfer pollen between flowers, making the process more efficient and increasing the chances of successful fertilization compared to random methods like wind pollination.
• Reduced pollen wastage: Less pollen needs to be produced and is wasted because it is specifically carried by the insect to another flower, rather than being dispersed broadly.

$$\boxed{\text{More efficient pollen transfer; Less pollen wastage}}$$