Why do organisms need to obtain energy via cellular respiration?(1 point)%0D%0AResponses%0D%0A%0D%0Ato grow and reproduce%0D%0Ato grow and reproduce%0D%0A%0D%0Ato break down ATP%0D%0Ato break down ATP%0D%0A%0D%0Ato perform glycolysis%0D%0Ato perform glycolysis%0D%0A%0D%0Ato photosynthesize
to break down ATP
Organisms need to obtain energy via cellular respiration for several reasons:
1. To break down ATP: ATP (adenosine triphosphate) is the primary energy currency in cells. Through cellular respiration, organisms can break down ATP to release energy that can be used for various cellular processes.
2. To grow and reproduce: Energy is required for growth, development, and reproduction. Cellular respiration provides the necessary energy to support these processes.
3. To perform glycolysis: Glycolysis is the first step in cellular respiration and is the process of breaking down glucose into pyruvate. This step releases a small amount of energy and is essential for the subsequent stages of cellular respiration.
4. To produce energy for metabolic activities: Metabolic activities such as active transport, protein synthesis, and cell signaling require energy. Cellular respiration provides the energy needed for these metabolic processes to occur.
5. To maintain homeostasis: Homeostasis is the maintenance of a stable internal environment. Energy derived through cellular respiration is necessary for the cellular processes involved in maintaining homeostasis.
In summary, organisms rely on cellular respiration to obtain energy for growth, reproduction, metabolic activities, and to maintain homeostasis.
Organisms need to obtain energy via cellular respiration primarily for the purpose of breaking down ATP (Adenosine Triphosphate), which is the main energy currency in cells. ATP provides the necessary energy for various cellular processes such as growth, reproduction, and the performance of other metabolic activities.
Cellular respiration is a series of metabolic reactions that occur in the cells of organisms to convert stored energy in food molecules (such as glucose) into a usable form of energy, which is ATP. It is a complex process that involves several biochemical reactions, including glycolysis, the Krebs cycle, and oxidative phosphorylation.
During cellular respiration, glucose and other organic molecules are broken down in a step-wise manner, releasing energy that is captured and used to synthesize ATP. This ATP molecule acts as a carrier of energy, providing the necessary fuel for various cellular activities like muscle contraction, active transport of ions, and synthesis of macromolecules.
By relying on cellular respiration, organisms can efficiently produce ATP, which is essential for their growth, reproduction, and overall survival. While photosynthesis is the process by which plants convert sunlight into glucose, cellular respiration is necessary to break down that glucose and convert it into ATP, enabling organisms to carry out vital life functions.