Question

Why do organisms need to obtain energy via cellular respiration?
to brea down APT
to photosynthesize
to perform glycolsis
to grow and reproduce

Answer 1

Organisms need to obtain energy via cellular respiration primarily **to grow and reproduce**. Cellular respiration is a crucial metabolic process that converts food (typically carbohydrates, fats, and proteins) into usable energy in the form of ATP (adenosine triphosphate). This energy is essential for various biological functions, including growth, reproduction, cellular repair, and maintenance of homeostasis.

Here's a brief clarification of the other options you provided:

1. **To break down ATP**: This is not correct in the context of why organisms need to obtain energy. Instead, organisms produce ATP through cellular respiration.

2. **To photosynthesize**: This applies only to photosynthetic organisms (like plants) that convert light energy into chemical energy. They use the products of photosynthesis to fuel cellular respiration.

3. **To perform glycolysis**: Glycolysis is a part of cellular respiration, the process through which glucose is broken down to produce ATP. While glycolysis is essential for energy production, it is not a primary reason for obtaining energy itself.

In summary, the main reason organisms rely on cellular respiration is to generate the energy necessary for growth, reproduction, and other vital functions.