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Consider the following statements regarding Endoplasmic Reticulum: 1. Endoplasmic Reticulum is to act as channels for the transport of materials between different regions of the cytoplasm. 2. The Smooth endoplasmic reticulum helps in the manufacture of fat molecules, or lipids. 3. Ribosomes attached to the surface of the rough endoplasmic reticulum. Which of the statements given above is/are correct?

Consider the following statements regarding Endoplasmic Reticulum: 1. Endoplasmic Reticulum is to act as channels for the transport of materials between different regions of the cytoplasm. 2. The Smooth endoplasmic reticulum helps in the manufacture of fat molecules, or lipids. 3. Ribosomes attached to the surface of the rough endoplasmic reticulum. Which of the statements given above is/are correct? Correct Answer 1, 2 and 3

  • The endoplasmic reticulum (ER) is a large network of membrane-bound tubes and sheets.
  • The ER membrane is similar in structure to the plasma membrane.
  • One function of the ER is to act as channels for the transport of materials (especially proteins) between different regions of the cytoplasm or between the cytoplasm and the nucleus.Hence statement 1 is correct.
  • There are two types of ER - rough endoplasmic reticulum (RER) and smooth endoplasmic reticulum (SER)
    • Smooth Endoplasmic Reticulum SER
      • The SER helps in the manufacture of fat molecules, or lipids, important for cell function. Hence statement 2 is correct.
      • In the liver cells of the group of animals called vertebrates, SER plays a crucial role in detoxifying many poisons and drugs
    • Rough Endoplasmic Reticulum RER - Ribosomes
      • RER looks rough under a microscope because it has particles called ribosomes attached to its surface.  Hence statement 3 is correct.
      • The ribosomes, which are present in all active cells, are the sites of protein manufacture.

Related Questions

Consider the following pairs. S.  No Cell Organelle Function 1. Endoplasmic Reticulum as channels for the transport of materials (especially proteins) between various regions of the cytoplasm 2. Golgi Apparatus responsible for packaging proteins into vesicles prior to secretion 3. Lysosomes they break down excess or worn-out cell parts   Which among the above is/are correct pairs?
The membranes of rough endoplasmic reticulum (RER) and smooth endoplasmic reticulum (SER) are continuous.
Where are the ribosomes attached in rough endoplasmic reticulum?
Consider the following statements.  A. It is easier to walk on a smooth surface.  B. A ball will fall easily over a rough inclined plane compared to a smooth one. C. Frictional force opposes the relative motion.  D. Frictional force depends upon the surface.  Which of the above statements are correct?
Rough endoplasmic reticulum (RER) looks rough under the microscope because of the attachment of which one of the following cell organelles to its surface?
Rough Endoplasmic Reticulum (RER) looks rough under the microscope because of the attachment of which one of following cell organelles to its surface?
Which of the following statements(s) concerning natural regions of the world is/are correct? 1) Equatorial climatic regions have less urbanization 2) Mediterranean climatic regions have a high level of urbanization 3) Equatorial climatic regions have a high concentration of human population 4) Mediterranean climatic regions practice plantation farming Select the correct answer using the code given below:
Directions: Seven different boxes A, B, C, D, E, F and G of different colours viz., Orange, Pink, Purple, Yellow, Blue, Red and Green are arranged one above the other. The box at the bottom of arrangement is numbered 1, the above box is numbered 2 and so on. B is immediately above E. More than two boxes are above the Orange box. The Yellow box is immediately below A. Only one box is between the Orange box and F. G is immediately above the Red box. Only one box is between B and the Pink box. Only two boxes are between the Pink and the Green box. Only two boxes are between the Yellow box and the Orange box. The Purple box is neither at the top nor at the bottom of the arrangement.B is above Pink box. C is immediately above F. Neither C nor G is a Yellow box. G is not a Orange box. Question: Which combination represents the position of C and its colour?
All the cells contain the same ratio of rough and smooth endoplasmic reticulum.
Consider the following statemens.
1. Endoplasmic Reticulum (ER) is called as 'skeleton of cell'.
2. ER is divided into three types according to presence or absence of ribosome
3. Smooth ER is rich in actively protein secreting cells.
Which of the statemen(s) given above is/are correct?