Which of tne followingl is electron carrier?
Correct answer: D. All of the above
- A. Plastocyonin
- B. Cytochromes
- C. Plastoquinones
- D. All of the above
Explanation
Plastoquinones are molecules that serve as electron carriers in the process of photosynthesis. They help transport electrons during the light-dependent reactions in plants. On the other hand, cytochromes are proteins that also act as electron carriers, specifically in cellular respiration. They play a role in transferring electrons within the electron transport chain to produce ATP. Both are essential for energy production in different biological processes.
This question appeared on the KMU Centralized Admission Test 2020 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Plant Nutrition and Transport
Plants require macronutrients and micronutrients for growth, and mineral deficiencies produce recognizable symptoms. Transport involves water and minerals through xylem by transpiration pull, cohesion and adhesion, while phloem translocates sugars from sources to sinks. Root pressure and transpiration are distinct mechanisms.
Practise Forms and Functions of Plants
272 free Forms and Functions of Plants MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.