Endoplasmic Reticulum

Q. Short note on Golgi Apparatus

Q.

What will happen to cell life if Golgi Apparatus was absent (3 marks)

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What is the main function of smooth endoplasmic reticulum?

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Question 4
Where are proteins synthesised inside the cell?

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Question 4
Which of these options is not a function of Ribosome?

(i) It helps in manufacture of protein molecules

(ii) It helps in manufacture of enzymes

(iii) It helps in manufacture of hormones

(iv) It helps in manufacture of starch molecules

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (iv) and (i)

Q.

Name the organelle of the cell which Is involved In the formation of lysosomes. Write its function in a cell.

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Define and write functions of the following

1. endoplasmic reticulum

2. lysosome

3.vacuoles

4.Golgi apparatus

5. plastids

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Which of the following statements are true about Endoplasmic Reticulum?

1. It modifies chemicals that are toxic to the cell.

2. Smooth Endoplasmic Reticulum makes lipids.

3. It is also called the control center of the cell.

4. Rough Endoplasmic Reticulum has ribosomes attached to it.

Q. What are cisterns?

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Why do ribosomes have no membrane?

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What is the smallest organelle in a cell?

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Can a cell live without endoplasmic reticulum?

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Write the 5 difference between smooth endoplasmic reticulum and rough endoplasmic reticulum ?

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The cell organelle involved in forming complex sugars from simple sugars are

1. endoplasmic reticulum

2. ribosomes

3. plastids

4. Golgi apparatus

Q. What is protein synthesis?

Q. What is incorrect about endoplasmic reticulum (ER)?

1. ER membrane is similar in structure to the plasma membrane.
2. ER serves as channel for the transport of materials within the cell.
3. Only RER is responsible for the membrane biogenesis.
4. RER is rough in appearance due to the presence of ribosomes.

Q.

Why is the endoplasmic reticulum called the supporting framework of the cell?

Q. Find the correct statement regarding cell organelles from the following.

1. Mitochondria helps in packaging of proteins within the cell.
2. Cell membrane is involved in the process of cell division.
3. Ribosome helps in detoxifying drugs and poison in vertebrate cells.
4. ER provides surface for biochemical activities in the cell.

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Do bacteria have endoplasmic reticulum?

Q. How many membranes does a golgi apparatus have?

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what is the site of oxidative phosphorylation?

1. Ribosomes

2. Golgi apparatus

3. Endoplasmic reticulum

4. Mitochondria

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What would happen to the life of a cell if there was no golgi apparatus?

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Define membrane biogenesis . Where lipids and proteins , constituting the plasma membrane , do get synthesized ??

Q. Storage, modification and packing of products occur in Golgi apparatus, coming from that cell organelle which functions as a______________.

1. Power-house of the cell
2. Cytoplasmic framework
3. Store house of the genetic information
4. Catalyst

Q.

What is the difference between cisternae and tubules in endoplasmic reticulum?

Q. why are ribosomes called organelle within an organelle?

Q. Which of the following pairs of cell organelles work together to package macromolecules?

1. Golgi bodies and vacuoles
2. Endoplasmic reticulum and Golgi bodies
3. Mitochondria and endoplasmic reticulum
4. Mitochondria and chloroplasts

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Smooth endoplasmic reticulum does not play any role in synthesis of protein. Why?

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Two functions of Rough Endoplasmic Reticulum.

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Question 27
Lysosome arises from

(a) endoplasmic reticulum
(b) golgi apparatus
(c) nucleus
(d) mitochondria