The main purpose of respiration is to convert ______ - Biology

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The main purpose of respiration is to convert ______


  • Chemical energy into solar energy

  • Solar energy into chemical energy

  • Biological energy into chemical energy

  • Chemical energy into Biological energy



The main purpose of respiration is to convert  Chemical energy into Biological energy.


The main purpose of respiration is breaking down glucose to release biologically usable form of energy ATP with the help of respiratory enzymes within the cell.

Concept: Formation of ATP
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Redraw the flow-chart with corrections. Explain in brief the process of obtaining energy through oxidation of carbohydrates, lipids & proteins.

Fill in the blank and explain the statement.

At the end of glycolysis, ________ molecules are obtained.

Distinguish between

Aerobic and anaerobic respiration.

Give scientific reason.

Cell division is one of the very important properties of cells and living organisms.

Write the correct option from the given multiple options.
We get from carbohydrates.

Choose the correct option.

Which step of Kreb's cycle operates substrate-level phosphorylation?

Fill in the blank with a suitable word.

In the prokaryotes ______ molecules of ATP are formed per molecule of glucose oxidised.

Fill in the blank with a suitable word.

F1- F0 particles participate in the synthesis of _______.

Fill in the blank with a suitable word.

During glycolysis ______ molecules of NADH+H+ are formed.

Answer the following question.

When and where does anaerobic respiration occur in man and yeast?

Answer the following question.

Why is less energy produced during anaerobic respiration than in aerobic respiration?

Answer the following question.

Which compound is the terminal electron acceptor in aerobic respiration?

Answer the following question.

Where is the respiration electron transport system located in a cell?

Answer the following question.

Write explanatory notes on Electron transport chain.

Give scientific reason.

We feel exhausted after exercising.

Which of the following vitamins is necessary for the synthesis of NADH2?

Give scientific reason.

We feel tired after exercising.

State two methods of cellular respiration.

Which amino acids are obtained after digestion of proteins?

What are vitamins?

Identify the given reaction and explain it.

What are the main steps of anaerobic respiration?

Write the importance of fibers in our diet.

Complete the following concept map.

During which of the following steps of glycolytic pathway ATP is directly formed?

  1. 3 - phospboglyceric acid to 2 phosphoglycerate
  2. Phosphoenolpyruvate to pyruvic acid
  3. 1, 3 - bisphosphoglyceric acid to 3 phosphoglycerate
  4. Fructose 1, 6 - bisphospbate to glyceraldehyde - 3 - phosphate

Read the following statements and select the CORRECT option.

Statement I: In oxidative phosphorylation ATP is synthesized by using the energy released during the oxidation of substrates like NADH+ H+ and FADH2.

Statement II: Substrate-level phosphorylation is a direct phosphorylation of ADP by transfer of a phosphate group from any suitable substrate.

Oxidative phosphorylation refers to ______

Which of the following is TRUE with respect to ATP?

In glycolysis,____________ ATP molecules are formed directly.

Where does the oxidative phosphorylation occur?

Complete the following analogy and select the correct option.

Respiration: Catabolic process:: ______ : Anabolic process

In the mitochondrion, energy is stored in the form of ____________.

The common immediate source of energy in cellular activity is ______.

Which one is amino acid?

Give three uses of fatty acids.

After complete oxidation of a glucose molecules, ______ number of ATP molecules are formed.


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