Question

In the photosynthesis process of plants. Which of the following is not required?
A) Water
B) Carbon dioxide
C) Sunlight
D) Alum

Answer 1

Hint: Photosynthesis is a process through which plants and other organisms transform light energy into chemical energy, which is then released to power the organism's metabolic activities through cellular respiration.

Complete answer:
Most of the time, oxygen is emitted as a waste product as well. Photoautotrophs are creatures that perform photosynthesis, such as plants, algae, and cyanobacteria. Photosynthesis produces and maintains the oxygen concentration of the Earth's atmosphere, as well as providing the majority of the energy required for life on the planet.

Photosynthetic creatures are photoautotrophs, meaning they can make food directly from carbon dioxide and water with the use of light energy. However, not all organisms employ carbon dioxide as a source of carbon atoms for photosynthesis; photoheterotrophs, on the other hand, use organic substances as a carbon source rather than carbon dioxide.

Photosynthesis is the process by which green plants and some other creatures convert carbon dioxide and water into nutrients. Plants need the green pigment chlorophyll to perform photosynthesis, which produces oxygen as a by-product. Alum is not essential for plant photosynthesis.

The majority of life on Earth is reliant on photosynthesis. Plants, algae, and some bacteria are involved in the process, which takes energy from the sun to produce oxygen (O2) and chemical energy stored in glucose (a sugar). Herbivores get their energy from plants, whereas predators get theirs from herbivores.

Therefore the correct answer is option ‘D’.

Note: Alum is aluminium potassium sulphate, which can be found at any grocery store. Potash alum is mostly used to extend the shelf life of foods while also improving their taste, flavour, and texture. It's also utilised to improve the sedimentation of drinking water during the purifying process. It's also used in tanning leather and aftershave.