Biological Classification And System Of Classification Question 12
Question: Which of the following is coloured portion in the cell of Nostoc
Options:
A) Chromoplasm
B) Centroplasm
C) Central body
D) Genophore
Show Answer
Answer:
Correct Answer: A
Solution:
The colored portion in the cell of Nostoc is the Chromoplasm.
Chromoplasm is the cytoplasmic region of the Nostoc cell that contains photosynthetic pigments such as chlorophyll and phycobilins1. These pigments are responsible for capturing light energy during photosynthesis1.
Nostoc, like most blue-green algae, contains two pigments, blue phycocyanin and red phycoerythrin, as well as chlorophyll. These pigments, along with certain amino acids, protect the cells from UV radiation.
Therefore, the correct answer is option A: Chromoplasm. This means that the colored portion in the cell of Nostoc is the Chromoplasm