Tag: photosynthesis

Questions Related to photosynthesis

When does radiation inversion usually occur?

botany photosynthesis action spectrum and absorption spectrum spectrum of electromagnetic radiation chloroplast and pigments of photosynthesis

  1. Day time

  2. At night

  3. In the morning

  4. In the evening

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Correct Option: B

What is the name of scientist who showed that sunlight is essential for photosynthesis?

botany photosynthesis action spectrum and absorption spectrum spectrum of electromagnetic radiation chloroplast and pigments of photosynthesis

  1. Jan Ingenhousz

  2. Joseph Priestley

  3. Robert Hook

  4. None of the above

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Correct Option: A
Explanation:

Jan Ingen-Housz showed that sunlight is essential for photosynthesis. He concluded that green plants purify the air in presence of sunlight. Thus, option A is the correct answer.

Electromagnetic radiation with wavelengths between 0.4 and 0.7 micrometers is called:

botany photosynthesis action spectrum and absorption spectrum spectrum of electromagnetic radiation chloroplast and pigments of photosynthesis

  1. Ultraviolet light

  2. Visible light

  3. Infrared light

  4. Microwaves

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Correct Option: B

If the oxygen of $CO _2$ is radiolabelled and provided to the plant, then which of the following will show radioactivity in the cells exposed to sunlight?

botany photosynthesis action spectrum and absorption spectrum spectrum of electromagnetic radiation chloroplast and pigments of photosynthesis

  1. Hexose

  2. $H _2O$

  3. $O _2$

  4. GTP

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Correct Option: A

EMR' stands for

botany photosynthesis action spectrum and absorption spectrum spectrum of electromagnetic radiation chloroplast and pigments of photosynthesis

  1. Electronic Radiations

  2. Electron Radiation

  3. Electromagnetic Radiations

  4. Electron Rays

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Correct Option: C

How does solar radiations travel through space?

botany photosynthesis action spectrum and absorption spectrum spectrum of electromagnetic radiation chloroplast and pigments of photosynthesis

  1. Electromagnetic Waves

  2. Light Waves

  3. Air Waves

  4. All of above

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Correct Option: A

How many of the given structures are associated with the thylakoid membrane?
PS II, RuBisCO, LHC, PEPcase, $F _0$ of ATP synthase, cytochromes b & f.

biology photosynthesis site of photosynthesis chloroplast and pigments of photosynthesis pigments action spectrum and absorption spectrum spectrum of electromagnetic radiation

  1. $2$

  2. $3$

  3. $4$

  4. $5$

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Correct Option: A

Read the following statements.
i) Chloroplasts get aligned with their flat surface parallel to the cell walls to receive optimum light intensity.
ii) Water is the only electron donor in all photosynthetic organisms.
iii) ATP and NADPH are utilised in Carboxylation stage of Calvin cycle.
iv) Bundle sheath cells are characterized by having a large number of chloroplasts and impervious walls.
v) Law of limiting factors was proposed by Blackmann.
Which of the given statements are CORRECT?

biology photosynthesis site of photosynthesis chloroplast and pigments of photosynthesis pigments action spectrum and absorption spectrum spectrum of electromagnetic radiation

  1. (i), (iii) and (iv)

  2. (i), (ii) and (iii)

  3. (iii), (iv) and (v)

  4. (v) only

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Correct Option: A

The spaces inside the folds of ER membrane are known as

biology photosynthesis site of photosynthesis chloroplast and pigments of photosynthesis pigments action spectrum and absorption spectrum spectrum of electromagnetic radiation

  1. Thylakoids

  2. Cisternae

  3. Mesosomes

  4. Periplasmic space

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Correct Option: A

Consider following statements A & B
A - The enzyme acts on 'N' terminal of polypeptide chain
B - The enzyme acts on 'C' terminal of a polypeptide chain
Choose the correct option w.r.t the digestive juices which contain these enzymes

biology photosynthesis site of photosynthesis chloroplast and pigments of photosynthesis pigments action spectrum and absorption spectrum spectrum of electromagnetic radiation

  1. A- Succus entericus B - Pancreatic juice

  2. A - Intestinal juice B - Bile juice in duodenum

  3. A - Pancreatic juice B - Intestinal juice

  4. A - Intestinal juice B - Gastric juice

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Correct Option: A