Question

Plants requiring low light intensity for optimum photosynthesis are called

• A. Bryophytes
• B. Pteridophytes
• C. Heliophytes
• D. Sciophytes

Answer 1

Answer: (D)

Sciophytes

A) Bryophytes require moist conditions and medium intensity of light.

B) Pteridophytes require the medium intensity of light.

C) Heliophytes require full exposure to the sun for optimal photosynthesis.

D) Sciophytes are shade-loving trees or plants. These plants have larger photosynthetic units than sun plants or heliophytes. Sciophytes are also known as photophobous plants and they reach their saturation level in only 20% sunlight. They require low light intensity for optimum photosynthesis.

So the correct answer is 'Sciophytes'.