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glucose

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Secondary Information

Definition

Glucose is a simple sugar that is found in foods and drinks. It is the body's main source of energy. Glucose is also used to store energy in the liver and muscles.

The chemical formula for glucose is C6H12O6. It is a white, odourless, and tasteless solid. Glucose is soluble in water and has a sweet taste.

Glucose is a major source of energy for the body. It is used by the cells to produce ATP, which is the body's main energy currency. Glucose is also used to store energy in the liver and muscles.

When the body does not have enough glucose, it will break down other substances, such as proteins and fats, for energy. This can lead to a condition called ketosis.

Glucose is also important for the brain. The brain cannot store glucose, so it needs a constant supply of glucose from the bloodstream. If the brain does not get enough glucose, it can lead to a condition called hypoglycaemia.

How can the word be used?

The enzyme amylase breaks down starch into glucose.

glucose

Different forms of the word

Noun: glucose.

Adjective: glucosic.

Verb: to glucose.

Etymology

The word "glucose" comes from the Greek word "γλυκύς" (glykys), which means "sweet". The word was first used in English in the 17th century to refer to a sweet-tasting substance that was found in grapes and other fruits.

Question

What is glucose?

AQA Science Exam Question and Answer

Question:

What is glucose and what is its role in the body?

Answer:

Glucose is a simple sugar that is the body's main source of energy. It is found in the blood and is used by cells to produce energy. Glucose is also stored in the liver and muscles in the form of glycogen. When the body needs energy, glycogen is broken down into glucose and released into the blood.

Glucose is essential for many bodily functions, including:

  • Providing energy for the brain and other organs.
  • Maintaining blood sugar levels.
  • Producing ATP, the body's main energy molecule.
  • Breaking down fat and proteins.
  • Building and repairing tissues.
  • Glucose is also important for the immune system and the nervous system.

Here are some additional points that could be included in the answer:

  • Glucose is a monosaccharide, which means that it is a single sugar molecule.
  • Glucose is the most abundant sugar in the blood.
  • The normal blood sugar level is between 70 and 100 mg/dL.
  • Glucose levels that are too high or too low can be a sign of a medical condition.
  • Diabetes is a condition in which blood sugar levels are too high.
  • Hypoglycemia is a condition in which blood sugar levels are too low.