Which one of the following is not a characteristic of an insect-pollinated plant?
Light and small pollen grains
Insect-pollinated (entomophilous) flowers are typically large, brightly coloured, fragrant, and nectar-producing to attract insects, and their pollen grains are large, sticky, and often spiny so that they cling to visiting insects. Light and small pollen grains are instead a feature of wind-pollinated (anemophilous) plants.
Which one of the following tissues is known as basic packing tissue and found in xylem and phloem ?
The breakdown of glucose in cytoplasm results in the formation of
Damage to the apical meristem of a growing young plant will affect the
The oxygen evolved during photosynthesis comes from splitting of
Consider the following statements about cactus:
1. The leaves are reduced to spines.
2. The stem does photosynthesis.
Which of the statements given above is/are correct?During a laboratory experiment, a student immerses epidermal leaf peel in a hypertonic solution. After some time, the student examined the cells under a microscope and observed that:
Leaves of most plants appear green because the chlorophyll present in it:
Which one of the following statements is correct?
Which of the following is a type of nutrition?
I. Heterotrophic
II. Autotrophic
Which of the following does NOT form an essential part of the process of photosynthesis?
Part of N 2cycle that is opposed to N 2fixation is:
Which among the following is the reproductive part of a plant?
Fibres (Adventitious) roots are found in :