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1. If there will be no chloroplast, then the process of photosynthesis will not take place, if photosynthesis will not be performed no amount oxygen will be produced by the plants and we need oxygen to survive. Hence, therewould be no life if chloroplast did not exist.
2.The cell organelle which is known as 'packaging and synthesizing unit' of the cell is mitochondria.
Mitochondria is also known as the power house of the cell. Mitochondria releases ATP which is known as the energy currency of the cell.The body uses the energy stored in ATP for making new chemical compounds and for mechanical work.
3.nucleus, ribosomes and mitochondria.
4.RBCs-they will swell up and sometimes it will burst.
Onion peel- they will also swell up but will not burst as they have rigid cell wall.
5.Lysosomes help to keep the cell clean by digesting any foreign materials as well as worn-out cell organelles.Foreign material enter the cell, such as bateria or food, as well as old organelles end up in the lysosomes, which break them up into small peices. They are able to do this because they contain powerful digestive enzymes, which are capable of breaking dowm all organic material. When the cell gets damaged, it may burts and the enzymes digest their own cell, because of which the are also known as sucide bags of the cell.
6. i)viruses carry their own genome in the form of DNA or RNA molecules, they lack the necessary ribosomal RNAs and ribosomal proteins required for the process of replication. This is why viruses take up the cells host protein building mechanisms to form their own viral copies.
ii) Due to the viruses' simple nature, they require energy from their host cells to drive the process of their replication. This is because they lack the ability to manufacture and use up the energy.
8.i. smooth endoplasmic reticulum
ii. golgi apparatus or golgi bodies.
9.nucleus
10.Ribosomes
2.The cell organelle which is known as 'packaging and synthesizing unit' of the cell is mitochondria.
Mitochondria is also known as the power house of the cell. Mitochondria releases ATP which is known as the energy currency of the cell.The body uses the energy stored in ATP for making new chemical compounds and for mechanical work.
3.nucleus, ribosomes and mitochondria.
4.RBCs-they will swell up and sometimes it will burst.
Onion peel- they will also swell up but will not burst as they have rigid cell wall.
5.Lysosomes help to keep the cell clean by digesting any foreign materials as well as worn-out cell organelles.Foreign material enter the cell, such as bateria or food, as well as old organelles end up in the lysosomes, which break them up into small peices. They are able to do this because they contain powerful digestive enzymes, which are capable of breaking dowm all organic material. When the cell gets damaged, it may burts and the enzymes digest their own cell, because of which the are also known as sucide bags of the cell.
6. i)viruses carry their own genome in the form of DNA or RNA molecules, they lack the necessary ribosomal RNAs and ribosomal proteins required for the process of replication. This is why viruses take up the cells host protein building mechanisms to form their own viral copies.
ii) Due to the viruses' simple nature, they require energy from their host cells to drive the process of their replication. This is because they lack the ability to manufacture and use up the energy.
8.i. smooth endoplasmic reticulum
ii. golgi apparatus or golgi bodies.
9.nucleus
10.Ribosomes
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