The first step in dark reaction of photosynthesis is

The First Step In Dark Reaction Of Photosynthesis Is Biology Question

The first step in dark reaction of photosynthesis is

Options

(a) formation of ATP
(b) ionization of water
(c) attachment of CO₂ to a pentose sugar
(d) excitement of electron of chlorophyll by a photon of light

Correct Answer:

attachment of CO₂ to a pentose sugar

Explanation:

In C₃ plants, the carbon dioxide combines with ribulose 1, 5-diphosphate (RuDP) (now called RuBP – Ribulose 1, 5 bisphosphate) and gives rise to a 3-C compund, phosphoglyceric acid. It is first stable product of C₃ cycle. The process can be called as Calvin cycle.

Related Questions:

  1. Necrosis or death of tissue particularly leaf tissue is due to the deficiency
  2. In history of biology, human genome project led to the development of :
  3. One of the chief functions of smooth endoplasmic reticulum is
  4. Biological treatment of water pollution is done with the help of
  5. Which one of the following is a non-reducing carbohydrate?

Topics: Photosynthesis in Higher Plants (153)
Subject: Biology (4253)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*