Q:

What are three types of tropism?

A:

Quick Answer

Phototropism, heliotropism and hydrotropism are three types of tropism. Tropism refers to the way plants react to external stimuli, such as light, soil and water.

Know More

Full Answer

Tropisms that move plants toward the stimuli are positive, while those that move plants away from the stimuli are negative. Phototropism, which is the plant's reaction to light, is a positive tropism since plants move towards the light. Heliotropism can be either positive or negative since it deals with the plant's reaction to the intensity and direction of light. Hydrotropism, which is the plant's growth response to water, can also be either positive or negative.

Learn more about Botany

Related Questions

  • Q:

    What are some types of stems?

    A:

    Some different types of plant stems include herbaceous, ligneous, climbing, tubers, woody and aerial. Some specialized stems include buds, thorns and prickles.

    Full Answer >
    Filed Under:
  • Q:

    What are the types of chlorophyll?

    A:

    There are several different types of chlorophyll including chlorophyll a, chlorophyll b, chlorophyll c, chlorophyll d, chlorophyll e and bacterio-chlorophyll. The various types of chlorophyll are found in different organisms and are all involved in photosynthesis.

    Full Answer >
    Filed Under:
  • Q:

    What are the types of vascular plants?

    A:

    Vascular plants can be classified into two major types: gymnosperms or angiosperms. Gymnosperms are types of plants that reproduce by creating cones that contain their seeds. Angiosperms are types of vascular plants that create seeds in their fruits or flowers.

    Full Answer >
    Filed Under:
  • Q:

    How many different types of roses are there?

    A:

    Botanists disagree on the exact number of species in the Rosa family of rose species, but most agree there are at least 100. In addition, there are thousands of cultivars (a group or subspecies) of roses bred for very specific colors, shapes, scents and other characteristics.

    Full Answer >
    Filed Under:

Explore