Question
Write a note on Golgi apparatus and the functions it performs.

Answer

Golgi apparatus or Golgi bodies or Golgi complex is composed of membrane-bound fluid-filled vesicles, vacuoles and cisternae. In animal cells they are larger and only one or two in number, while in plants they are smaller and more in number. Also, in plant cells, they are distributed throughout the cytoplasm and are called dictyosomes.
Functions:
1. It is involved in the transport and modification of protein, lipids as well as carbohydrates.
2. It helps in the formation of cell plate during cell division.
3. It is also involved in the formation of lysosomes and peroxisomes.
4. The material synthesised near endoplasmic reticulum is packaged and dispatched to various targets and outside the cell through the Golgi apparatus.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Three different vibrating objects produce three types of sounds $X$, $Y$ and $Z$. Sounds $X$ and $Y$ cannot be heard by a man having normal range of hearing but sound $Z$ can be heard easily. The sound $X$ is used in hospitals to break kidney stones of a patient into fine grains whioch then get flushed out with urine. The sound $Y$ is similar to that which is produced during an earthquake before the main shock wave is generated.
  1. What t$Y$pe of sounds are $(i) X, (ii) Y$, and $(iii) Z$?
  2. Name one device which can produce sound like $X$.
  3. Name one device in a science laboratory which can produce sound like $Y$.
  4. Name one device in our homes which can produce sound like $Z$.
  5. What is the frequency range of sounds like $Z$?
Give two examples each of longitudinal waves and transverse waves.
Universal law of gravitation states that every object exerts a gravitational force of attraction on every other object. If this is true, why don’t we notice such forces? Why don’t the two objects in a room move towards each other due to this force?
Two objects having equal masses are moving with uniform velocities of $2m/s$ and $6m/s$ respectively. Calculate the ratio of their kinetic energies.
Compare all the proposed models of an atom given in this chapter.
Define crop? Name the various types of crops. What are Kharif and Rabi crops?
Draw a well-labelled diagram of an eukaryotic nucleus. How is it different from nucleoid?
Which of the following are matter? Chair, air, love, smell, hate, almonds, thought, cold, lemon water, smell of perfume.
Define the following:
  1. Sol
  2. Aerosol
  3. Emulsion
  4. Foam
Given one example of each.
The following data was obtained for a body of mass $1\ kg$ dropped from a height of $5$ metres:
 
Distance above ground
Velocity
$i.$
$5m$
$0m/s$
$ii.$
$3.2m$
$6m/s$
$iii.$
$0m$
$10m/s$
Show by calculations that the above data verifies the law of conservation of energy (Neglect air resistance). $(g = 10m/s^2)$.