Question

Functions of cell organelles​

Answer 1

Answer:

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Explanation:

Cell organelles.

Every cell in your body contains organelles (structures that have specific functions). Just like organs in the body, each organelle contributes in its own way to helping the cell function well as a whole. The nucleus, mitochondria and chloroplasts are all organelles...

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Answer 2

Answer:

Functions performed by the Cell Organelles:

1. Endoplasmic Reticulum -

  (a) Smooth Endoplasmic Reticulum

• Synthesis of Lipids & Steroids.
• Detoxification of Drugs.
• Associated with muscle contraction by release & uptake of $ca^{2+}$ ions.

  (b) Rough Endoplasmic Reticulum

• It gives rise to SER (Smooth Endoplasmic Reticulum).
• Site for Protein Synthesis
• Provides precursors of enzymes for the formation of Lysosomes in Golgi Complex.

2. Golgi Complex -

• The important function of Golgi apparatus is to package the material and prepare for secretions.

• The  packaged material is delivered either to the intracellular targets i.e. within the cell or secreted extra cellular  targets i.e., outside the cell.
• The material to be secreted moves from ER to the Golgi apparatus in the  form of vesicles. These vesicles are then fuse with the cis face and move towards the maturing face of  the golgi apparatus.

• Golgi apparatus is closely associated with ER in structural as well as  functional aspects.
• A number of proteins synthesised by ribosomes on the ER are transferred to Golgi apparatus. These proteins  are then modified in the cisternae of Golgi apparatus before they are released from its trans face.
• Golgi apparatus is the important site of formation of glycoproteins and glycolipids.

3. Nucleus -

• Highly specialized organelle - serves as the information processing & administrative center of the cell.

        2 Major functions:

• Stores the cell's hereditary material(DNA)
• coordinates the cell's activities Growth, Metabolism, Protein synthesis, & Reproduction (cell division).

4. Chloroplast -

• Photosynthesis
• Storage of starch

5. Vacuoles -

• Storage
• Ingestion
• Digestion
• Excretion

6. Mitochondria -​

• Main site for Aerobic Respiration.
• Power House of the cell.
• Helps to perform various energy requiring processes.