Choose the most appropriate answer.
Most of plant tissue cultures are photosynthetically ________.

Question

Question

This question was previously asked in

MPSC State Service Main Examination 2021 - General Studies IV Official Paper

Answer 1

The correct answer is option 3

Key Points

Plant tissue cultures are grown in vitro and are often photosynthetically incompetent, meaning they cannot produce their own food through photosynthesis. Hence option 3 is correct.
This is because the majority of plant tissue cultures are heterotrophic, which means they cannot produce their own food and must rely on external sources for nutrition.
Instead, they rely on a carbon source, usually in the form of sugar, to provide them with energy.
However, there are some plant tissue cultures that are photosynthetically active.
These cultures are usually grown in a more natural environment with a more abundant supply of nutrients and light.