Which of these provides the body energy?

Carbohydrates are the body’s main source of energy. The fruit, vegetables, dairy, and grain food groups all contain carbohydrates.

Where do plants get the energy to make organic molecules mastering?

The flow of energy and cycling of matter can be traced. The chemical reaction by which plants produce complex food molecules (sugars) requires an energy input (i.e., from sunlight) to occur. In this reaction, carbon dioxide and water combine to form carbon based organic molecules and release oxygen.

What is the name of the process by which organisms convert the carbon?

Photosynthesis by land plants, bacteria, and algae converts carbon dioxide or bicarbonate into organic molecules. Organic molecules made by photosynthesizers are passed through food chains, and cellular respiration converts the organic carbon back into carbon dioxide gas.

Which of these is not an organic molecule?

Answer c) water is the correct answer. A water molecule contains one oxygen covalently bound to two hydrogen atoms with no carbon present.

How does each type of organism obtain energy?

Organisms acquire energy by two general methods: by light or by chemical oxidation. … These autotrophs provide energy for the other organisms, the heterotrophs. Heterotrophs are organisms that acquire their energy by the controlled breakdown of preexisting organic molecules, or food.

How do living things produce energy?

The flow of energy through living organisms begins with photosynthesis. This process stores energy from sunlight in the chemical bonds of glucose. By breaking the chemical bonds in glucose, cells release the stored energy and make the ATP they need.

What is the main sugar used by cells for energy?

The body breaks down most carbohydrates from the foods we eat and converts them to a type of sugar called glucose. Glucose is the main source of fuel for our cells. When the body doesn’t need to use the glucose for energy, it stores it in the liver and muscles.

Which of the following organic molecules stores energy?

fats
The organic molecules that store the most energy are called fats or triglycerides.

What are examples of organic molecules?

Some examples of organic molecules include:
  • Carbohydrates – Carbohydrates consist only of carbon, hydrogen, and oxygen. …
  • Lipids – Lipids include fats and waxes. …
  • Proteins – Proteins are made up of long chains of amino acids. …
  • Nucleic Acids – Nucleic acids make up long chains of components such as DNA and RNA.

How does the body use energy?

Energy produced from food in the human body is used to maintain the body’s essential functions (e.g. cell growth and repair, respiration, blood transport) and perform physical tasks including work, exercise and recreational activities.

Why does the body need to produce energy?

Energy fuels your body’s internal functions, repairs, builds and maintains cells and body tissues, and supports the external activities that enable you to interact with the physical world. Water, your body’s most important nutrient, helps facilitate the chemical reactions that produce energy from food.

Which parts of a cell provide the cell with energy?

Mitochondria
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell’s biochemical reactions.

What uses the most energy in your body?

The brain
May is the Month of the Brain, our most energy-consuming organs. Representing only 2% of the weight of an adult, the brain consumes 20% of the energy produced by the body.