BIOLOGY HIGH SCHOOL

Which provides long-term energy storage?a. Glycogen
b. Glucagon
c. Glucose
d. Cellulose

Answers

Answer 1
Answer:

Glycogen provides long-term energy storage.

Glycogen is an example of a carbohydrate which is a polysaccharide that acts as a long-term energy storage compound in animals.

Further Explanation

  • Living organisms require energy in order to undertake their daily activities such as growth and development, locomotion, gaseous exchange, etc. To do so they obtain nutrients for short-term and long-term energy source.
  • Carbohydrates are the major energy source for living organisms, however, living organisms may use other sources of energy such as proteins or fats when carbohydrates is out of stock or not available.  

Energy source in animals

  • Animals use simple carbohydrates such as glucose obtained from diet for short-term energy sources.
  • These simple carbohydrates may also be stored for future use in the form of glycogen, which makes glycogen a long-term energy source, to be used when need arises.
  • When glucose levels are low in the body hormones in the body trigger the breakdown of glycogen to glucose.
  • Other sources of energy such as proteins and fats are used when carbohydrates storage is depleted, for example during starvation.

Energy source in plants

  • In plants, on the other hand, simple carbohydrates are similarly used as a short term source of energy. Additionally, simple molecules such as glucose are stored in the form of starch for long-term source of energy for the plants.  

Why other Choices are incorrect:

Glucagon  

  • Glucagon is the hormone that increases the blood glucose level to avoid it from dropping below optimum level.
  • The hormone acts on the liver to stimulate the breakdown of glycogen to glucose, a process called glycogenolysis, and the glucose is released to the blood stream.

Glucose

  • Glucose is a simple carbohydrate classified as monosaccharides. It acts as the short term source of energy in both plants and animals.
  • It is readily broken down during the process of cellular respiration to yield energy in the form of ATP, which is then used to drive cellular processes.

Cellulose

  • Cellulose is an example of a complex carbohydrates known as polysaccharides.
  • It is found in plants cells lining the cell wall of all plant cells which is one of the key distinguishing feature between plant cells and animal cells.

Keywords: Glycogen, Glucose, energy sources  

Learn more about:  

Level: High school

Subject: Biology  

Topic: Cellular respiration
Answer 2
Answer:

Glycogen serves as a long-term energy storage molecule in animals, including humans. Therefore option A is correct.

It is a complex carbohydrate made up of glucose units linked together in a branched structure. When dietary glucose levels are high, excess glucose is converted into glycogen and stored primarily in the liver and muscles.

This stored glycogen can be broken down into glucose when energy is needed during periods of fasting, exercise, or other metabolic demands.

Glucose, on the other hand, is a simple sugar that serves as an immediate energy source, while glucagon is a hormone involved in regulating blood glucose levels. Cellulose, a structural polysaccharide, is not used for energy storage in animals.

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Why do you think carbohydrates are used as a source if quick energy rather than fat?

Answers

1) carbohydrates cannot be dissolved easily unlike fats as they are insoluble in water.therefore the amount of energy given from carbohydrates lasts longer than fats2)fats can be accumulated on the coronary artery(the artery which supplies blood to the heart)there lots of intake of fats can result in heart attack3)carbohydrates are non sticky and from chain of compounds unlike fats.

How does good experimental conclusion differ from an inference?

Answers

A good experimental conclusion will be directly deducible from the experimental results where as an inference may find matters that arise indirectly due to the experimental results. In general, when writing a conclusion it is best to only state what is directly seen within the data.

Final answer:

A good experimental conclusion is based on specific experiment results, while an inference is a logical conclusion based on evidence or observations.

Explanation:

In experimental science, a good experimental conclusion is based on the results obtained from a specific experiment. It is a statement that summarizes the findings and outcomes of the experiment.

On the other hand, an inference is a logical conclusion or interpretation based on the evidence or observations available. It involves reasoning from general knowledge and previous experiences.

For example, in a biology experiment testing the effect of temperature on plant growth, a good experimental conclusion would state the specific results observed, such as 'Plants exposed to higher temperatures exhibited faster growth rates.' An inference based on these results could be 'Higher temperatures promote plant growth.'

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Which trophic level does a fish represent in food chain?Algae-> mosquito larva->dragonfly larve-> fish-> man

A
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B
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C
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Answers

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Answers

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Answers

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Question from Campbell Biology Chapter 23:4) Which statement about the beak size of finches on the island of Daphne Major during prolonged drought is true?
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Answers

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