Question

Which of the following statements is/are correct?
(A) All green plants can prepare their own food.
(B) Most animals are autotrophs.
(C) $CO_2$​ is not required for photosynthesis.
(D) Oxygen is liberated during photosynthesis.
Choose the correct answer from the options given below.
I. (A) and (D)
II. (B) only
III. (B) and (C)
IV. (A) and (B)

Answer 1

Plants provide autotrophic nutrition and are referred to as the main producer. Plants synthesize their food with light, carbon dioxide, and water. Plants have a mechanism called photosynthesis to produce their own food.

Complete answer:
Nutrition is defined as the process of consuming food and using it to develop, stay healthy, and fix any damaged part of the body. By taking raw materials from their environments, such as minerals, carbon dioxide, water, and sunlight, plants grow their food.
Two nutrition modes exist:
a. Autotrophic-Plants provide autotrophic nutrition and are referred to as the largest maker. By using light, carbon dioxide, and water, plants synthesize their food.
b. Heterotrophic-Both animals and human beings are referred to as heterotrophs because their diet depends on plants.
By means of a process called photosynthesis, all green plants may prepare their own food. The carbon dioxide created by all breathing organisms is taken in by photosynthesis and oxygen is reintroduced into the atmosphere. Photosynthesis is the mechanism used to harness energy from sunlight by plants, algae, and some bacteria and convert it into chemical energy used by animals (heterotrophs). The site of photosynthesis is the chloroplast. Chloroplast has chlorophyll. Chlorophyll is a green pigment present in leaves that allow the leaves to prepare their food by collecting energy from sunlight.
Hence, the right choice, then, is option (I)- (A )and (D).

Note: Some plants have unusual structural characteristics that help them capture insects and are generally referred to as carnivorous or heterotrophic plants. By secreting digestive juices, these plants digest the insects and extract the nutrients from them. These plants grow on mineral-deficient soil.