Golgi Apparatus

Question 1

Goldi Apparatus is also known as-

Answer 1

Traffic police of the cell

Question 2

It is named after which scientist ?

Answer 2

Camillo Golgi

Question 3

Discovered by Camilo Golgi…but where?

Answer 3

In the nerve cells of owl.

Question 4

Year of discovery

Answer 4

1898

Question 5

Size-

Answer 5

0.5μ-1.0μ

Question 6

Occurence

Answer 6

It is present near the nucleus of the cell

Question 7

It’s called Golgi complex because

Answer 7

Because of its complex structure.
They are interconnected.

Question 8

Why are they called dictyosomes?

Answer 8

In plant cell, Golgi Apparatus is present in the form of discrete units ( small packets), that’s why it is known as Golgi bodies or dictyosomes.
These are not inter connected.

Question 9

What is zone of exclusion?

Answer 9

The area around Golgi Apparatus is called zone of exclusion where no other organelle interferes.

Question 10

What is the function of zone of exclusion?

Answer 10

It helps in transportation between ER and Golgi Apparatus.

Question 11

Biomolecules like lipids and proteins synthesized from ER are packed in which vesicles?

Answer 11

Transition vesicles.

Question 12

Where are transition vesicles transported to?

Answer 12

They are transported to cis face of Golgi Apparatus

Question 13

The biomolecules undergoes what?

Answer 13

Processes, modifications, and packaging.

Question 14

Modifications includes?

Answer 14

1. Glycosidation → carbohydrates+ lipids= glucolipids
2. Glycosylation → carbohydrates+ proteins= glycoprotein

Question 15

After modifications what are glucolipids and glycoproteins packed into?

Answer 15

Secretory vesicles

Question 16

Where do secretory vesicles go?

Answer 16

To target sites
→extracellular ( outside the cell )
→intracellular ( inside the cell )

Question 17

Golgi Apparatus can be present in the form of?

Answer 17

1. Cisternae
2. Vesicles
3. Tubules

Question 18

What are membranous structure with slight curvature and arranged in stack parallel to each other?

Answer 18

Cisternae

Question 19

What are tube like structures which may be branched?

Answer 19

Tubules

Question 20

What are the two types of vesicles?

Answer 20

Transition vesicles and Mature vesicles

Question 21

What are Golgion vacuoles?

Answer 21

*sac like structure
*may contain mixture of substances or amorphous substances
*may contain hydrolytic substances and are called lysosomes.

Question 22

What are the functions of Golgi Apparatus?

Answer 22

1. Processes, modification and packaging of material recieved from ER.
2. They secrete vesicles to the target sites inside or outside the cell.
3. It is an important site of formation of glycoprotein and glucolipids.
4. Helps in the formation of phragmoplast.
5. Helps in cell division in plant cell ( cell plate method )
6. Acrosome of sperm is modified Golgi Apparatus which helps the male gamete to penetrate inside the ovum.
7. It also helps in yolk formation ( Vitellogenesis )
8. Root cap cells are rich in Golgi bodies which secrete mucilage for lubrication of root tip.
9. Formation of lysosomes.