Online Shiksha

By Savita S. More

Maharashtra Board Class 8 Cell and Cell Organelles

 

e. Nucleus
Regulates and controls all metabolic activities within the cell.
Contains genes, segments on chromosomes, involved in the transmission of hereditary traits from parents to offspring.

 

Who gives me the colour? (Select the correct option.
a. Red tomato 1. Chlorophyll
b. Green leaf 2. Carotene
c. Carrot 3. Anthocyanin
d. Violet 4. Lycopene

a. Red tomato – 4. Lycopene
b. Green leaf – 1. Chlorophyll
c. Carrot – 2. Carotene
d. Violet – 3. Anthocyanin

 

Who is odd man among us? Give reason.
a. Nucleolus, mitochondria, plastids,endoplasmic reticulum
b. DNA, Ribosomes, Chlorophyll

 

a. nucleolus is a structure found within the nucleus of a cell and is involved in the production of ribosomes, whereas mitochondria, plastids, and endoplasmic reticulum are membrane-bound organelles with different functions.
b. DNA and ribosomes are both involved in protein synthesis, while chlorophyll is involved in photosynthesis, making it the odd one out.

 

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