Biology

Photosynthesis in Plants

1,492 Questions

Photosynthesis is the biological process by which plants convert light energy into chemical energy. This page contains practice questions covering essential topics like chlorophyll, light reactions, and the pathways specific to plants. This material is crucial for medical entrance exams and academic assessments.

Chlorophyll and pigmentsLight reactionsCalvin cycleCAM plantsElectron transportPhotosynthesis factors

Photosynthesis in Plants Questions

Multiple choice

Which of the following statements in photosynthesis are CORRECT? P. The absorption maxima for photosystem I (PS I) and PS II are 680 nm and 700 nm, respectively. Q. Photosynthetic reaction centre contains 300 chlorophyll molecules and the release of one molecule of oxygen requires a minimum of 8 photons. R. The non-photochemical quenching of excitation energy is enhanced by the presence of zeaxanthin. S. The photochemical splitting of water occurs in PS I.

  1. P, Q

  2. R, S

  3. P, S

  4. Q, R
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice plant kingdom biology

In Chlamydomonas(a green algae) the number of chloroplast per cell is?

  1. $1$
  2. $2$
  3. $100$
  4. $1000$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chlamydomonas is a unicellular green alga that typically contains a single, cup-shaped chloroplast.

Multiple choice plant kingdom biology

Major photosynthetic pigments in green algae are

  1. Chl $a$ and $b$
  2. Chl $a$, $c$ and fucoxanthin
  3. Chl $a$, $d$ and phycoerythrin
  4. Chl $a$ and $c$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Green algae (Chlorophyceae) are characterized by the presence of chlorophyll a and chlorophyll b as their primary photosynthetic pigments.

Multiple choice colon punctuation english

Choose the option that best corrects the underlined word:
Plants obtain energy for their activities through photosynthesis, a process by which plants convert light energy into chemical energy.

  1. photosynthesis:

  2. photosynthesis;

  3. photosynthesis

  4. NO CHANGE
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The given sentence consists of two independent clauses. 
Option A - As a general rule, a colon is used to separate two independent clauses when the second illustrates or explains the first. In the given sentence, the second half explains the process of photosynthesis. Thus, the usage of colon in place of comma will be more appropriate.
Option B - A semi colon is used between two independent clauses when the coordinating conjunction is omitted.


Multiple choice

What products are created by the process of photosynthesis?

  1. the sun's light and energy

  2. oxygen and carbohydrates

  3. phosphorus and nitrogen

  4. carbon dioxide and water
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Photosynthesis is the process by which plants use sunlight to convert water and carbon dioxide into oxygen and glucose (a carbohydrate). The inputs are light, water, and CO2, while the outputs are oxygen and sugar.

Multiple choice

Plants get their energy from a process called...

  1. Osmosis

  2. Regeneration

  3. Photosynthesis

  4. Molecular motion
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.