Why do organisms need to obtain energy via cellular respiration?

to break down ATP***

to perform glycolysis

to grow and reproduce

to photosynthesize

TYSM for the answer Mr.Banana

Ah, well, organisms need to obtain energy via cellular respiration because, you know, lounging on the couch all day binge-watching Netflix isn't exactly sustainable in the long run. We need energy to do all those important things in life, like growing, reproducing, and dodging responsibilities whenever possible. Plus, let's be real, without energy, we'd all be as motivated as a sloth on a lazy Sunday. So, cellular respiration is our way of fueling the biochemical reactions that keep us going and turning that magical ATP to make life happen. It's like a little battery pack, except instead of buying a new one, we just eat pizza. Hey, it works for me!

Organisms need to obtain energy via cellular respiration primarily to break down ATP (adenosine triphosphate). ATP is the main form of energy used by cells to carry out various biological processes. During cellular respiration, glucose and oxygen are utilized to produce ATP through a series of biochemical reactions. This ATP is then used by the cells to perform various functions such as metabolism, growth, reproduction, and movement. So, the correct answer is: to break down ATP.

Organisms need to obtain energy via cellular respiration for several reasons, including breaking down ATP, performing glycolysis, growing and reproducing. However, photosynthesis is not directly related to the process of cellular respiration.

Let's break down these points to understand them better:

1. Breaking down ATP: ATP (adenosine triphosphate) is the energy currency of cells. It provides energy for a wide range of cellular processes, such as muscle contractions, active transport, and synthesis of molecules. Cellular respiration is a process through which organisms break down glucose, fatty acids, and other organic compounds to produce ATP. Without cellular respiration, an organism would not have the necessary energy to carry out its metabolic activities.

2. Performing glycolysis: Glycolysis is the initial step in both cellular respiration and fermentation processes. It is an anaerobic metabolic pathway that breaks down glucose to produce energy in the form of ATP. Many organisms, including humans, rely on glycolysis to generate ATP. The end products of glycolysis, such as pyruvate, can further participate in the subsequent steps of cellular respiration, leading to the production of more ATP.

3. Growing and reproducing: Energy obtained through cellular respiration is essential for supporting the growth and reproduction of organisms. During growth, cells continuously divide and differentiate, which requires a substantial amount of energy. Reproduction, whether thual or asexual means, also demands energy for the development of reproductive structures and the synthesis of new organisms.

4. Photosynthesis: Photosynthesis is a process carried out by autotrophic organisms, such as plants, algae, and some bacteria, to convert sunlight, carbon dioxide, and water into glucose and oxygen. While photosynthesis is crucial for these organisms to produce their own energy, it is not directly involved in cellular respiration. The glucose produced during photosynthesis serves as a source of energy for other organisms that undergo cellular respiration to obtain ATP.

In summary, organisms need to obtain energy via cellular respiration mainly to break down ATP, perform glycolysis, and support their growth and reproduction.