Tag: respiration in organisms

Questions Related to respiration in organisms

The common immediate source of energy for cellular activity is

zoology respiration in organisms active transport and passive transport types of plant transport atp

  1. NAD.

  2. ATP.

  3. DNA.

  4. RNA.

Show answer
Correct Option: B
Explanation:

Cellular respiration is the set of metabolic processes that take place in the cells. In this process glucose is oxidized through the metabolic pathways like glycolysis in cytoplasm and Krebs's cycle in mitochondria and produces energy in the form of ATP. ATP is further utilized by the different cell for their activities.

The currency of energy in a typical living cell is

zoology respiration in organisms active transport and passive transport types of plant transport atp

  1. ATP molecule.

  2. ADP molecule.

  3. Glucose molecule.

  4. Haemoglobin molecule.

Show answer
Correct Option: A
Explanation:

Various metabolic processes in our body utilize ATP as a source of energy. It is considered as energy currency of cells as it stores the chemical energy of food molecules to be utilized as and when required by the body. 

Which of the following elements is needed as a component in cell membranes, nucleic acids and energy transfer?

zoology respiration in organisms active transport and passive transport types of plant transport atp

  1. Sulphur

  2. Phosphorus

  3. Calcium

  4. Potassium

Show answer
Correct Option: B
Explanation:
Phosphorus is a constituent of cell membranes, certain proteins, all nucleic acids and nucleotides. This element is involved in energy transfer such as ATP and ADP and activates coenzymes for amino acid production which is necessary for  protein synthesis. Further phosphorous is also a required for other metabolic processes such as photosynthesis, glycolysis, respiration and fatty acid synthesis.
Therefore, the correct answer is option B.

The assimilatory power in photosynthesis is

zoology respiration in organisms active transport and passive transport types of plant transport atp

  1. ATP.

  2. NADPH.

  3. ATP and NADPH$ _2$.

  4. ATP, NAPDH and CO$ _2$.

Show answer
Correct Option: C
Explanation:

The phase of reactions in photosynthesis which involves the direct sunlight is called light reaction. This reaction takes place inside the grana of chloroplast. In this reaction assimilatory power ATP and NADPH$ _2$ are generated with evolution of oxygen and photolysis of water. These assimilatory powers help in the fixation of carbon dioxide during dark phase reaction.

Organisms undergo processes that require energy and produce energy. Processes such as photosynthesis, cellular respiration, reproduction, and movement are just a few of these processes. Which of these best describes the energy available to do cellular work?

zoology respiration in organisms active transport and passive transport types of plant transport atp

  1. Heat

  2. Free energy

  3. Potential energy

  4. Kinetic energy

Show answer
Correct Option: B
Explanation:
Free energy is the capacity of a system to do work in an exothermic reaction
So, the correct answer is 'Free energy'

Which of the following is called energy currency of the cell?

zoology respiration in organisms active transport and passive transport types of plant transport atp

  1. ATP

  2. NADP$H _2$

  3. $C _6 H _{12}O _6$

  4. $C _2 H _5$OH

Show answer
Correct Option: A
Explanation:

The energy currency of the cell is ATP (Adenosine triphosphate).

During a cellular reaction, all the energy is not released as free energy but some of it is stored in ATP as chemical energy.
The phosphate bonds in ATP are high energy bonds and they are broken whenever the cell requires energy. It is used in various energy-requiring processes of the cell.

So, the correct option is 'ATP'

In ATP, high energy bond is present between 

zoology respiration in organisms active transport and passive transport types of plant transport atp

  1. Nucleoside and phosphate group

  2. Sugar and phosphate group

  3. Base and phosphate group

  4. None of the above

Show answer
Correct Option: D
Explanation:
ATP is known as energy currency of the cell. It has three phosphate out of which one is directly attached to the ribose with phosphate ester bond and it is low energy bond. The bond between two phosphate groups is a phosphoanhydride bond which is considered as high energy bond. So ATP has two high energy phosphoanhydride bonds.
So, the correct answer is option D.

Which one forms ATP?

zoology respiration in organisms active transport and passive transport types of plant transport atp

  1. Fe and P

  2. N and P

  3. Fe and Mo

  4. Mg and Mn

Show answer
Correct Option: B

Energy liberated during respiration is stored as

zoology respiration in organisms active transport and passive transport types of plant transport atp

  1. ATP

  2. ADP

  3. FAD

  4. NADP

Show answer
Correct Option: A
Explanation:

Cellular respiration requires oxidation of organic substrates for the liberation of energy. The energy released is stored in every living cell in the form of a universal high energy molecule called ATP or adenosine triphosphate.

So the answer is 'ATP'.

ATP is

zoology respiration in organisms active transport and passive transport types of plant transport atp

  1. Adenine triphosphate

  2. Adenosine tetraphosphate

  3. Adenosine triphosphate

  4. Adenine tetraphosphate

Show answer
Correct Option: C
Explanation:

Adenosine triphosphate is the long form of ATP, it is the complex organic chemical that participates in many processes. Found in all forms of life, ATP is often referred to as the "molecular unit of currency" of intracellular energy transfer.

So, the correct option is C.