Question

Photosynthesis generally takes place in which portion of the plant?
A) Leaf and chlorophyll bearing parts
B) Stem and leaf
C) Roots and chlorophyll bearing parts
D) Bark and leaf

Answer 1

Hint: A noun is a term that refers to an entity, a place, an object, or a concept. Nouns could be used as the subject, direct object, indirect object, subject complement, object complement, appositive, or adjective in a sentence.

Complete answer:
Chloroplast is the organelle where photosynthesis takes place. It contains a green-coloured pigment called chlorophyll where light energy is absorbed by chlorophyll molecules and converted into chemical energy. This pigment reflects green light and absorbs blue light strongly. The chlorophyll is present in the leaves and also in other parts of some plants.

Here carbon dioxide and oxygen enter through the tiny pores of stomata located in the epidermis of leaves. In addition to oxygen another by-product of photosynthesis is sugars like glucose and fructose. These sugars are considered as an energy source for the plants. They are sent to the roots, stems, leaves, fruits, flowers and seeds. These sugar molecules help in the formation of complex carbohydrates like cellulose and starch by combining with each other.

Stem is used for supporting the leaves and thereby conducts water and minerals to the leaves. These are converted into usable products by photosynthesis. They also help in the transportation of these products from the leaves to other parts of the plant, including the roots.

Bark also plays an important role in transportation of photosynthetic products in plant tissues. Bark is also crucial to the mechanics of the stem. Roots are present below the ground. The main function is to absorb water and minerals.


Therefore the above discussion, we can conclude that the correct answer is option ‘A’.

Note: The rate of photosynthesis is affected by many factors like.
- Light intensity.
- Water
- Soil pH
- Carbon dioxide concentration.
- Temperature
- and other climatic conditions.
There are two stages for photosynthesis namely light-dependent reactions and light-independent reactions. Light-dependent reactions are also known as light reactions and occur during the day time. Light-independent reaction is also known as the dark reaction or the Calvin cycle.