Which of the following is the primary source of useable energy for living things?

The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter.

Which of the following organic compounds is the primary source of useable energy for living things?

Organisms ingest organic molecules like the carbohydrate glucose to obtain the energy needed for cellular functions. The energy in glucose can be extracted in a series of chemical reactions known as cellular respiration.

Which biomolecule is the main source of energy for living things?

Living things use carbohydrates as their main source of energy. The breakdown of sugars, such as glucose, supplies immediate energy for cell activities.

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Which of the following macromolecules is the primary energy source for living organisms?

The macromolecule that is the primary source for organisms are the carbohydrates.

Which of the following organic compounds store energy for short periods of time in living things?

Unit 1 (Chapter 1 and Sections 2.1 and 2.5) Vocabulary

A B
a polysaccharide made by animal cells to store energy short term glycogen
organic molecules made up of carbon, hydrogen, and oxygen; insoluble in water lipids
a type of lipid used to store energy and as a source of fatty acids fat

Which of the following is the primary source of all food on earth?

Plants and animals are the main source of food for all the organisms on earth. Food obtained from animals is the main source of protein and include fish, milk, meat, poultry, and cheese. Whereas plants provide us with fruits and vegetables, which are an important source of fibres, proteins and carbohydrates.

How is sunlight the primary source of energy?

Answers ( )

Sunlight allows plants, algae and cyanobacteria to use photosynthesis to convert carbon dioxide and water into organic compounds like carbohydrates. This process is the fundamental source of organic material in the biosphere.

What is the main source of quick energy?

Carbohydrates. Glucose, a 6-carbon sugar, is a simple carbohydrate or “mono-saccharide.” Sugar is a source of quick energy for the body because it is easily metabolized (broken down).

Which macromolecule is primarily used as an energy source?

The macromolecule which forms the primary energy source for the organisms is D) Carbohydrate. Carbohydrates are some of the common nutrients which…

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Are lipids the main source of energy for living things?

Lipids are much richer source of energy. But still these are not used as the main source of energy as these are not converted into glucose directly, the basic respiratory substrate. The entry of lipid into respiratory metabolism occurs at different levels and involves lengthy metabolic reactions.

Which macromolecule is the main source of energy for living things quizlet?

Living things use carbohydrates as their main source of energy. Plants, some animals, and other organisms also use carbohydrates for structural purposes. Most macromolecules are formed by a process known as polymerization, in which large compounds are built by joining smaller ones together.

Which two macromolecules are used as the primary source of energy for cellular respiration?

During glycolysis, a glucose molecule is cleaved in two, creating two pyruvate molecules and the energy molecule, ATP. The pyruvate molecules are shuttled quickly into the mitochondria, where they are used in the remainder of the respiration process. The glucose molecule is the primary fuel for cellular respiration.

What is the primary energy source in organisms?

The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter. This process begins the flow of energy through almost all food webs.