amino acids, sugars, various organic
ids and some proteins. In single-celled
ganisms like Amoeba, the food vacuole
ntains the food items that the Amoeba has
nsumed. In some unicellular organisms,
ecialised vacuoles also play important roles
expelling excess water and some wastes
in the cell.
uestions
1. Can you name the two
organelles we have studied that
contain their own genetic
material?
2. If the organisation of a cell is
destroyed due to some physical
or chemical influence, what will
happen?
3. Why are lysosomes known as
suicide bags?
4. Where are proteins synthesised
inside the cell?
Cach cell thus acquires its structure and
y to function because of the organisation
Answers
Answer:
Explanation:
Mitochondria and plastids are the two organelles that contain their own genetic material. Both these organelles have their own DNA and ribosomes.
If the organisation of a cell is destroyed due to some physical or chemical influence then cell will not be able to perform the basic functions like respiration, nutrition, excretion etc. This may stop all the life activities and may result in its death.
Lysosomes are known as suicide bags of the cell because they contain lytic enzymes capable of digesting cells and unwanted materials.
Proteins are produced in RER (Rough Endoplasmic Reticulum). Proteins are produced in the RER by the ribosomes attached to it.
Ribosomes are produced in cytoplasm and mitochondria’s chloroplast. RNA present in ribosomes plays a significant role in the synthesis of proteins. This synthesis is called translation as the protein compound is formed from amino acid and the amino acid structure is decoded from genes.