Morphology of Flowering Plants quiz

Stilt roots are found in:

Which of these is an underground stem?

Tendrils of pea are modifications of:

Twisted aestivation is found in:

Marginal placentation is found in:

A flower that can be divided into two equal halves in only one plane is:

The edible part of mango is the:

In which plant are the leaves modified into spines?

Stamens fused into one bundle are:

The swollen leaf base in leguminous plants is called the:

What are the functions of roots? (2 marks)

Distinguish between runners and suckers with examples. (2 marks)

What is the difference between reticulate and parallel venation? (2 marks)

Distinguish between pinnately and palmately compound leaves. (2 marks)

What is a phyllode? Give an example. (2 marks)

What is meant by a perigynous flower? (2 marks)

What is a parthenocarpic fruit? (2 marks)

What are the parts of a dicot seed? (2 marks)

What is the aleurone layer? (2 marks)

Why are prop roots important for banyan trees? (2 marks)

A mustard flower has 4 sepals, 4 petals, 6 stamens (4 long and 2 short) and a bicarpellary ovary. Calculate the total number of floral parts (counting each carpel separately) and the ratio of long to short stamens. Name the condition of the stamens. (3 marks)

A sunflower head has 600 florets, of which 10% are ray florets. Calculate the number of ray and disc florets. Which type of inflorescence is this? (3 marks)

A pea plant has 12 compound leaves, each with 3 pairs of leaflets and a terminal tendril. Calculate the total number of leaflets and tendrils. (3 marks)

A china rose flower has 5 sepals, 5 petals, many stamens fused into one tube, and 5 fused carpels. If a sample of 8 flowers is studied, how many carpels are present in all? (3 marks)

A coconut palm has a fruit with an outer fibrous mesocarp of 300 g, an endocarp of 150 g and a seed of 350 g. Calculate the percentage mass of each part. Name the type of fruit. (3 marks)

Read the passage and answer the questions. A student observed a banyan tree with roots hanging from its branches into the soil. In a nearby marshy area, mangrove plants had roots growing vertically upwards from the soil. In a field, maize plants had roots arising from the lower nodes of the stem. (i) Name the three types of roots. (ii) What is the function of the roots in mangroves? (iii) How do the maize roots help the plant? (5 marks)

Read the passage and answer the questions. The flower is the reproductive unit in angiosperms. A typical flower has four whorls: calyx, corolla, androecium and gynoecium. The thalamus is the swollen end of the pedicel. Based on the position of the calyx, corolla and androecium in respect of the ovary on the thalamus, flowers are described as hypogynous, perigynous and epigynous. (i) Define hypogynous with an example. (ii) What is an inferior ovary? (iii) Give an example of an epigynous flower. (5 marks)

Read the passage and answer the questions. A student examined a pea flower. It had a large standard petal, two lateral wing petals and two anterior keel petals enclosing the stamens and pistil. Nine stamens were fused and one was free. (i) Name the aestivation. (ii) Name the arrangement of stamens. (iii) Name the family of pea. (5 marks)

Read the passage and answer the questions. Leaves often get modified to perform functions other than photosynthesis. They are converted into tendrils for climbing as in peas or into spines for defence as in cacti. The fleshy leaves of onion and garlic store food. In some plants such as Australian acacia, the leaves are small and short-lived. (i) Why are leaves modified into spines in cacti? (ii) What performs photosynthesis in Australian acacia? (iii) How are the leaves of the pitcher plant modified? (5 marks)

Read the passage and answer the questions. Stems of some plants become modified to perform special functions. Underground stems of potato, ginger, turmeric, zaminkand and Colocasia store food. They also act as organs of perenation to tide over unfavourable conditions. Stem tendrils which develop from axillary buds are slender and spirally coiled. (i) How can you show that potato is a stem and not a root? (ii) Name two plants with stem tendrils. (iii) What is perenation? (5 marks)

Describe the types of roots and the regions of a root tip with diagrams. Explain the modifications of roots with examples. (6 marks)

Describe the modifications of stems for storage, support, protection and vegetative propagation with examples and diagrams. (6 marks)

Describe the structure of a typical leaf. Explain venation, types of leaves, phyllotaxy and leaf modifications. (6 marks)

Describe the parts of a flower. Explain symmetry, ovary position, aestivation and placentation with diagrams. (6 marks)

Describe the structure of a fruit and of dicot and monocot seeds with labelled diagrams. Explain how a flowering plant is described in semi-technical language with an example. (6 marks)