Question

Light loving plants are known as
A. Heliophytes
B. Xerophytes
C. Lithophytes
D. Sciophytes

Answer 1

Hint: These plants are adapted to a habitat with a very intensive insolation, because of the construction of its own structure and maintenance.
Example: Thyme, white clover etc.

Complete Answer:
A. Heliophytes: These plants are also known as sunstroke plants or solar plants. They construct and maintain themselves by their own. Some of these plants are white clover and most roses.

B. Xerophytes: Xerophytes are the plants which mainly grow in deserts. They need little water to survive. They are also found in an ice or snow covered region in the Alps or the Arctic. Examples are: cacti, pineapple etc.

C. Lithophytes: The plants which mainly grow on bare rock or stone are called Lithophytes. These plants are also known as epipetric or epiphytic plants. Examples are Liverworts paphiopedilum orchids, Ferns and algae.

D. Sciophytes: The shade loving trees or plants are known as Sciophytes. These are also known as photophobic plants. These plants consist of larger photosynthetic units than sunstroke plants. These plants have leans shaped epidermal cells with higher chlorophyll content per unit leaf volume.

Hence the correct answer is option ‘A’.

Note: Heliophytes require full sunlight to survive so they are mostly found in equatorial regions. They are also common on rocks, mountains on open terrain which are completely exposed to sunlight.