7. Give three important functions of each of the following:
(i) ER (ii) Lysosomes (iii) Golgi bodies (iv) Plastids
(v) Nucleus (vi) Mitochondria
Answers
Answer:
plastids help us to store molecules like starch protein aur oil. Nucleus- it controls the cell and co-ordinate the intermediary metabolism. it stores the hereditary material of cell or DNA. Mitochondria-converting chemical energy from glucose products to chemical energy in ATP.
Explanation:
i-Endoplasmic reticulum (ER), the main function is particularly in the synthesis, folding, modification, and transport of proteins .
ii-lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria.
iii-Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.
iv-Plastids are responsible for photosynthesis, storage of products like starch, and for the synthesis of many classes of molecules such as fatty acids and terpenes, which are needed as cellular building blocks and for the function of the plant.
v-The nucleus controls and regulates the activities of the cell e.g., growth and metabolism and carries the genes, structures that contain the hereditary information.
vi-Mitochondria are membrane-bound cell organelles that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).