All Courses
Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity Get the App Login Join for Free
Sign in Open App
Class 9 Exam  >  Class 9 Questions  >  Can you explain the answer of this question b... Start Learning for Free
SaveJoin the Discussion on the App
Can you explain the answer of this question below:
Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus. 
Statement B : ER is absent in the red blood cells of mammals. 
Which of the two statement is true
  • A:
    Statement A
  • B:
    Statement B
  • C:
    Both the statement A and B
  • D:
    Neither statement A nor statement B.
The answer is c.
Clear all your Class 9 doubts with EduRev
Most Upvoted Answer
Can you explain the answer of this question below:Statement A: The sec...
Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus.
Statement B: ER is absent in the red blood cells of mammals.

Explanation:

Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus.

- The Golgi apparatus is an organelle found in eukaryotic cells. It is responsible for modifying, sorting, and packaging various molecules for secretion or for use within the cell.
- The secretary proteins, also known as secretory proteins, are proteins that are synthesized on ribosomes attached to the rough endoplasmic reticulum (ER).
- After synthesis, these proteins are transported from the ER to the Golgi apparatus for further processing and packaging.
- Inside the Golgi apparatus, the secretary proteins undergo modifications such as glycosylation and sorting.
- Once the proteins are properly modified and sorted, they are packaged into secretory vesicles, which are small membrane-bound sacs.
- These secretory vesicles bud off from the Golgi apparatus and are transported to the plasma membrane.
- Upon reaching the plasma membrane, the secretory vesicles fuse with it, releasing their contents, including the packed secretary proteins, outside the cell through a process called exocytosis.
- Therefore, Statement A is true.

Statement B: ER is absent in the red blood cells of mammals.

- The endoplasmic reticulum (ER) is an organelle present in eukaryotic cells, involved in various functions such as protein synthesis, lipid metabolism, and calcium storage.
- However, in mature mammalian red blood cells (erythrocytes), the ER is absent.
- Red blood cells are specialized cells that lack a nucleus and most organelles to maximize their capacity for oxygen transport.
- During the maturation process of red blood cells, the ER and other organelles are expelled, resulting in a biconcave shape and increased surface area for oxygen binding.
- The absence of the ER in red blood cells allows for more efficient oxygen transport and increases the lifespan of these cells in circulation.
- Therefore, Statement B is true.

Conclusion: Both Statement A and B are true.
Community Answer
Can you explain the answer of this question below:Statement A: The sec...
The secretory proteins are packed inside the secretory vesicles which are formed by Golgi apparatus. Endoplasmic reticulum is absent in the red blood cells of mammals. So, both statements are correct.
Attention Class 9 Students!
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.
Explore Courses for Class 9 exam

Similar Class 9 Doubts

Read the text carefully and answer the questions:Cell organelles are enclosed by membranes. Cell organelles are the endoplasmic reticulum, Golgi apparatus, lysosomes, mitochondria and plastids. The endoplasmic reticulum (ER) is a large network of membrane-bound tubes and sheets. It looks like long tubules or round or oblong bags. There are two types of ER rough endoplasmic reticulum (RER) and smooth endoplasmic reticulum (SER). RER looks rough under a microscope because it has particles called ribosomes attached to its surface. The ribosomes, which are present in all active cells, are the sites of protein manufacture. The Golgi apparatus, first described by Camillo Golgi, consists of a system of membrane-bound vesicles arranged approximately parallel to each other in stacks called cisterns.Q.The cell organelle involved in forming complex sugars from simple sugars are

Read the text carefully and answer the questions:Cell organelles are enclosed by membranes. Cell organelles are the endoplasmic reticulum, Golgi apparatus, lysosomes, mitochondria and plastids. The endoplasmic reticulum (ER) is a large network of membrane-bound tubes and sheets. It looks like long tubules or round or oblong bags. There are two types of ER rough endoplasmic reticulum (RER) and smooth endoplasmic reticulum (SER). RER looks rough under a microscope because it has particles called ribosomes attached to its surface. The ribosomes, which are present in all active cells, are the sites of protein manufacture. The Golgi apparatus, first described by Camillo Golgi, consists of a system of membrane-bound vesicles arranged approximately parallel to each other in stacks called cisterns.Q.Find out the correct sentence about the Endoplasmic reticulum.I. Enzymes packed in lysosomes are made through RER.II. Rough endoplasmic reticulum and smooth endoplasmic reticulum produce lipid and protein respectively.III. The endoplasmic reticulum is related to the destruction of the plasma membrane.IV. The SER helps in the manufacture of fat molecules or lipids.

Read the text carefully and answer the questions:Cell organelles are enclosed by membranes. Cell organelles are the endoplasmic reticulum, Golgi apparatus, lysosomes, mitochondria and plastids. The endoplasmic reticulum (ER) is a large network of membrane-bound tubes and sheets. It looks like long tubules or round or oblong bags. There are two types of ER rough endoplasmic reticulum (RER) and smooth endoplasmic reticulum (SER). RER looks rough under a microscope because it has particles called ribosomes attached to its surface. The ribosomes, which are present in all active cells, are the sites of protein manufacture. The Golgi apparatus, first described by Camillo Golgi, consists of a system of membrane-bound vesicles arranged approximately parallel to each other in stacks called cisterns.Q.Which cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell?

Top Courses for Class 9View all

Top Courses for Class 9

Can you explain the answer of this question below:Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus.Statement B : ER is absent in the red blood cells of mammals.Which of the two statement is trueA:Statement AB:Statement BC:Both the statement A and BD:Neither statement A nor statement B.The answer is c.
Question Description
Can you explain the answer of this question below:Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus.Statement B : ER is absent in the red blood cells of mammals.Which of the two statement is trueA:Statement AB:Statement BC:Both the statement A and BD:Neither statement A nor statement B.The answer is c. for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Can you explain the answer of this question below:Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus.Statement B : ER is absent in the red blood cells of mammals.Which of the two statement is trueA:Statement AB:Statement BC:Both the statement A and BD:Neither statement A nor statement B.The answer is c. covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Can you explain the answer of this question below:Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus.Statement B : ER is absent in the red blood cells of mammals.Which of the two statement is trueA:Statement AB:Statement BC:Both the statement A and BD:Neither statement A nor statement B.The answer is c..
Solutions for Can you explain the answer of this question below:Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus.Statement B : ER is absent in the red blood cells of mammals.Which of the two statement is trueA:Statement AB:Statement BC:Both the statement A and BD:Neither statement A nor statement B.The answer is c. in English & in Hindi are available as part of our courses for Class 9. Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of Can you explain the answer of this question below:Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus.Statement B : ER is absent in the red blood cells of mammals.Which of the two statement is trueA:Statement AB:Statement BC:Both the statement A and BD:Neither statement A nor statement B.The answer is c. defined & explained in the simplest way possible. Besides giving the explanation of Can you explain the answer of this question below:Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus.Statement B : ER is absent in the red blood cells of mammals.Which of the two statement is trueA:Statement AB:Statement BC:Both the statement A and BD:Neither statement A nor statement B.The answer is c., a detailed solution for Can you explain the answer of this question below:Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus.Statement B : ER is absent in the red blood cells of mammals.Which of the two statement is trueA:Statement AB:Statement BC:Both the statement A and BD:Neither statement A nor statement B.The answer is c. has been provided alongside types of Can you explain the answer of this question below:Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus.Statement B : ER is absent in the red blood cells of mammals.Which of the two statement is trueA:Statement AB:Statement BC:Both the statement A and BD:Neither statement A nor statement B.The answer is c. theory, EduRev gives you an ample number of questions to practice Can you explain the answer of this question below:Statement A: The secretary proteins are packed inside the secretory vesicles which are pinched off from the Golgi apparatus.Statement B : ER is absent in the red blood cells of mammals.Which of the two statement is trueA:Statement AB:Statement BC:Both the statement A and BD:Neither statement A nor statement B.The answer is c. tests, examples and also practice Class 9 tests.
Explore Courses for Class 9 exam

Top Courses for Class 9

Explore Courses

Suggested Free Tests

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Get App
© EduRev
Education Revolution
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup