Question

11.1. What will happen if Golgi bodies are removed from a cell?​

11.2. Explain why nucleus is known as the main control center of the cell.

11.3. A, B, C and D are basic parts of a cell.

• A carries thread like structures which contains genetic information.
• B uses glucose and oxygen to produce energy.
• C controls the movement of substance into the cell and
• out of the cell.
• D is a transparent, jelly like substance.

What are A, B, C and D? Write a note on them.

Answer 1

11.1. Golgi bodies are the cell organelles whose main function is to package and transport the proteins. Golgi bodies package the proteins received from the endoplasmic reticulum, into vesicles. These vesicles are transported to other cell organelles for performing other cellular activities. Without the Golgi bodies, the packaging and transport of proteins will not take place.​

11.2. Nucleus is known as the control center of the cell as it performs the following functions:

• The nucleus contains the hereditary material of the cell, the DNA.
• It sends signals to the cells to grow, mature, divide and die.
• The nucleus is surrounded by the nuclear envelope that separates the DNA from the rest of the cell.

11.3. A- Nucleus, B- Mitochondria, C- Plasma membrane, D- Cytoplasm.

• Nucleus is known as the control room of the cell. It regulates and controls all the functions of the cell. It contains thread-like structures, which carries the genetic material and determines the characteristics of the organism.
• Mitochondria are responsible for cellular respiration, a process through which the cell derives its energy to do work.
• Plasma membrane is selectively permeable as it allows only certain solute particles to move across the cell.
• Cytoplasm is the jelly-like fluid substance outside the nucleus where all the cell organelles are placed.