Question

Organisms that can prepare their food are called as
a. Autotrophs
b. Heterotrophs
c. Algae
d. None of the above

Answer 1

Hint: Organisms that can prepare their food store chemical energy in carbohydrate molecules in food, which they create themselves. Food is chemical energy stored in organic molecules. Food provides energy for work and carbon for buildings. This is called the photosynthetic process. Only three groups of organisms: plants, algae and some bacteria can transform life-giving energy.

Complete answer:
Let’s study each option one by one.
Autotrophs:
They are organisms that can make their food from substances that can be used in the environment using light (photosynthesis) or chemical energy (chemical synthesis). Autotrophic organisms generate their energy in one of two ways. Photosynthetic photoautotrophic organisms use solar energy to convert carbon dioxide from water and air in the soil into glucose. Glucose provides plants with energy and is used to make cellulose, from which cell walls are built. For instance, we say that the Plants, algae, phytoplankton and some bacteria. Carnivorous plants such as seminar bags use photosynthesis for energy but rely on other organisms for other nutrients such as nitrogen, potassium, and phosphorus. Therefore, this plant is primarily an autotrophic organism.

Heterotrophs:
These organisms are not capable of synthesizing their food and rely (depend) on other organisms (both plants and animals). Heterotrophs survive by eating organic matter produced or present in other organisms. There are two types of heterotrophic organisms. Light Heterotrophs - These heterotrophs use light to produce energy, but cannot use carbon dioxide as a carbon source. Carbon is made from compounds such as carbohydrates, fatty acids and alcohols. For instance, we can take purple bacteria that do not contain sulphur, green bacteria that do not contain sulphur, and helicobacter. Chemoheterotroph-heterotrophs, i.e., receiving energy due to the oxidation of previously obtained organic compounds. Examples: animals, fungi, bacteria, and just about any pathogen.

Algae:
Green algae are another group of organisms that can produce their food through photosynthesis. These are photoautotrophs, which are found mainly in lakes and wetlands. Like plants, these organisms capture the solar energy needed for this process, carrying chlorophyll as a photosynthetic pigment.

Hence, the correct answer is option (A).

Note: Autotrophs are also known as "producers". Because it forms the backbone of the organic food chain and is responsible for all other foods for all other organisms. This organism is of great importance because all other forms of life directly or indirectly depend on these organisms for food and energy. Chemically synthesized organisms live in extreme conditions where toxic chemicals are found necessary for reactions. Bacteria found in volcanoes use sulphur for cooking, and the increase in autotrophic organisms eventually increases the number of consumers. Meanwhile, a decrease in the number of autotrophs leads to starvation at all other trophic levels.