organisms get energy from food?
energy from food model ideas
new model ideas
living things rearrange food (specifically glucose - c₆h₁₂o₆) and o₂ into co₂ and h₂o.
(c₆h₁₂o₆ + o₂) have higher energy than (co₂ + h₂o) so this rearrangement releases energy.
- the rearrangements occur in a series of steps rather than all at once.
- collectively the reactions are called cellular respiration.
- usable cellular energy is released in the form of atp.
matter from food
some of this matter is really taken in for energy. it is rearranged to obtain energy in a reaction called
cellular respiration. the products are expelled from the body as carbon dioxide and water (co₂ +
h₂o).
- some of the matter we take in is used to build proteins, fats and complex carbs that form cells of
body structures.
- excess food not used for energy or building materials is converted to fat and stored.
what is the overall reason for cellular respiration? why do we do it?
which of the above energy diagrams above is similar to cellular respiration?
which of the above energy diagrams is similar to photosynthesis?
which of the above energy diagrams is similar to burning ethanol?
define atp.
what is the purpose of atp?

Question

Accepted Answer

### Sub - question 1: What is the overall reason for cellular respiration? Why do we do it?
# Brief Explanations:
Cellular respiration is a process where glucose and oxygen are rearranged. The reactants ($\ce{C6H12O6 + O2}$) have more energy than the products ($\ce{CO2 + H2O}$), so energy is released. This energy is used by living organisms for various life processes like growth, movement, and maintaining cellular functions. Also, some matter from food is used to build body structures, and excess is stored, but the main energy - related reason is to release energy (in the form of ATP) for the cell's activities.
# Answer:
The overall reason for cellular respiration is to release energy from food (glucose) by rearranging it with oxygen into carbon dioxide and water. We do it to obtain usable cellular energy (in the form of ATP) for various life processes such as growth, movement, and maintaining cellular functions. Also, some matter from food is used for building body structures and storing excess as fat.

### Sub - question 2: Define ATP.
# Brief Explanations:
ATP stands for Adenosine Triphosphate. It is a molecule that stores and transfers energy within cells. It is often referred to as the "energy currency" of the cell because it provides the energy needed for many cellular processes. The structure of ATP consists of an adenosine molecule attached to three phosphate groups. When one of the phosphate groups is removed (forming ADP - Adenosine Diphosphate), energy is released that can be used by the cell.
# Answer:
ATP (Adenosine Triphosphate) is a molecule that acts as the "energy currency" of the cell. It stores and transfers energy, and when a phosphate group is removed (converting it to ADP - Adenosine Diphosphate), energy is released for cellular processes.

### Sub - question 3: What is the purpose of ATP?
# Brief Explanations:
The purpose of ATP is to provide the energy required for various cellular activities. These activities include but are not limited to muscle contraction, active transport of molecules across cell membranes, synthesis of macromolecules (like proteins, lipids, and carbohydrates), and cell division. Essentially, ATP powers the chemical reactions and physical processes that are necessary for the survival, growth, and functioning of a cell.
# Answer:
The purpose of ATP is to provide usable energy for cellular processes such as muscle contraction, active transport, synthesis of macromolecules, and cell division, which are essential for the survival, growth, and functioning of the cell.

(Note: For the questions about energy diagrams, since the diagrams are not provided, we can't answer them. If the diagrams were provided, we would analyze the energy changes: cellular respiration is an exothermic process (reactants have more energy than products), photosynthesis is endothermic (reactants have less energy than products as it stores energy from the sun), and burning ethanol is also an exothermic process. So we would match the diagrams based on these energy - change characteristics.)

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Question

Explanation:

Sub - question 1: What is the overall reason for cellular respiration? Why do we do it?

Answer:

Sub - question 2: Define ATP.