Which of the following organelles lack membranes ?- a)Ribosome
- b)Lysosome
- c)Golgi body
- d)Nucleus
Correct answer is option 'A'. Can you explain this answer?
Related Test: Test: Diversity In Living Organisms - 3
Which of the following organelles lack membranes ?
a)
Ribosome
b)
Lysosome
c)
Golgi body
d)
Nucleus
Class 9 Question
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See Rhibisom is the bacteria which is present under the soil it is the other name of Rhizobium all other have a membrane but it is not having so option a
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Ribosome is the correct answer because it is the smallest cell organelles present in the cell.
Because other Cell organelles like Lysosome (Membrane made of lipoprotein) , Golgi Body (3-20 flattened mebranous sac called cisterns) and Nucleus( it also have nuclear envelope of karyotheca) have membranes .
Because other Cell organelles like Lysosome (Membrane made of lipoprotein) , Golgi Body (3-20 flattened mebranous sac called cisterns) and Nucleus( it also have nuclear envelope of karyotheca) have membranes .
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Yes because it is a single celled organism and if it's cell would have membrane it would not be possible for it to take in nitrogen and to convert it into a consumable nitrogen because nitrogen can't pass through membrane
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Actually ribosome are the organelles that the cell needed for various things so it's lack membrane
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Ribosomes lack membranes as they help in protein synthesis . As proteins are needed by all the different parts of the cell , they move freely across the cell
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Ribosome do not have membrane so it is able to pick up the translational RNA released from nucleus to form proteins
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A)Ribosome exist as free structures that float throughout the cytoplasm of the cell. they do not have membranes, which allows them to pick up translational RNA released from the nucleus and grab onto free amino acids in order to produce protein chains
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Ribosome is present in the cell in front of rough endoplasmic reticulam. Its work is synthesis the protein . It doesnt contain any membrane so, option A is correct.
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The answer is that ribosomes lack membrane and so it is not called organelles
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Because ribosomes do not have membrane.
and ribosomes are consist of two subunits.
and ribosomes are consist of two subunits.
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Ribosomes lack the unit membrane . They are present individually in the cell cytoplasm and make the lining of the rough endoplasmic reticulum. Nucleolus lacks a unit membrane.They have genetic materials in the nucleus which consists of RAN, DNA, proteins etc.
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Option A is correct because ribosome is a bacteria which is found under soil. so it does not have membrane.
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Ribosomes are commonly known as the protein factories of cells and they lack membraneous covering. The ribosomes consist of two subunits; larger subunit and smaller subunit. These subunits join together only at the time of protein synthesis and are composed of ribonucleo proteins(RNP's). Since, ribosomes represent temporary association of two subunits at the time of translation(protein synthesis), they lack membraneous covering.
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Ribosomes are part of cell, they are sticked on the surface of endoplasmic reticulum. ribosomes help endoplasmic reticulum in process of protein synthesis
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Ribosomes are unique structures that translate the DNA code via messenger RNA (mRNA) into actual proteins that cells use for processes. Ribosomes are different from other organelles because they have no membrane around them that separates them from other organelles, they consist of two subunits, and when they are producing certain proteins they can become membrane bound to the endoplasmic reticulum, but they can also be free floating while performing their function.
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Ribosome is small granules produce through nucleolus and it is attached to the RER that's why it is not having membrane.
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A) Ribosomes are the organelles which lack membrane.
This is evident from the fact that ribosomes are the only organelle which is present in prokaryotes and prokaryotes only have membrane less organelles.
Ribosomes exist as free structures that float throughout the cytoplasm of the cell. They do not have membranes, which allows them to pick up translational RNA released from the nucleus and grab onto free amino acids in order to produce protein chains.
Hope that you have found a correct explanation for that!
This is evident from the fact that ribosomes are the only organelle which is present in prokaryotes and prokaryotes only have membrane less organelles.
Ribosomes exist as free structures that float throughout the cytoplasm of the cell. They do not have membranes, which allows them to pick up translational RNA released from the nucleus and grab onto free amino acids in order to produce protein chains.
Hope that you have found a correct explanation for that!
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Ribosomes are made by rough endoplasmic reticulum they are the centre of protein production and they consist of genetic material. They do not have membrane which allows them to pick RNA ( Ribo Nucleic Acid).
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Https://sciencing.com/difference-between-attached-detached-ribosomes-8805.html
Read this article,you will surely find your answer
Please upvote my answer, if you find it helpful
Read this article,you will surely find your answer
Please upvote my answer, if you find it helpful
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In cells, thesestructures are referred to as organelles. ... Non-membrane boundorganelles are more solid structures that are not fluid-filled, so they have no need for amembrane. Examples of non-membrane bound organelles are ribosomes, the cell wall, and the cytoskeleton.
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Ribosomes are different from other organelles because they have no membrane around them that separates them from other organelles, they consist of two subunits, and when they are producing certain proteins they can become membrane bound to the endoplasmic reticulum, but they can also be free floating while performing
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As we know what are organelles and even we know that what are different kind of organelles. In the question the only ribosome is the organelle and other are present in cytoplasm and ribosome is the organelle of plant. So the answer is A.
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Ribosomes are free structures that floats throughout the cytoplasm. As they are free structures they picks tRNA and drops in amino acids to produce proteins....
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A) Ribosome is the correct answer because it is present in prokaryotic as well as eukaryotic cells. prokaryotes don't have membrane-bound organelles .Other three are only present in eukaryotic cells and are membrane bound. Therefore answer a) Ribosome is correct.
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Ribosomes are the smallest cell organelles which can be seen only through an electron microscope. They are found in both prokaryotic as well as eukaryotic cells. Ribosomes are dense, round bodies which occur freely in the cytoplasm and may remain attached to the surface of the endoplasmic reticulum. Chemically, ribosomes are made up of ribonucleoprotein (in eukaryotic cells, the constituent of the ribosome is 40% protein and 60% ribosomal RNA). Ribosomes help in the process of protein synthesis. They are, therefore, called as the protein factories of the cell.
A) Ribosomes
A) Ribosomes
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RIBOSOME -the cell wall ,and the cytoskeleton . ribosomes are bundles of genetic material and protein production in the cell.
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Ribosome is the only option which does not contain any Membraneous Cover around it becoz they float freely throughout the cell(in the cytoplasm)
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Ribosome lacks membrane a sit is composes of RNA and protein enzyme. It is the site of protein synthesis in a cell.
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Ribosomes are bundles of genetic material and protein that are the centers of protein production in the cell.
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They do not have membrane because this allows them to pick up translational RNA released from the nucleus and grab onto free amino acid in order to make protein chains.
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Ribosomes are the translational apparatus of the cell with two major components the small ribosomal subunit which reads the RNA, and the large subunit which joins amino acids to form a polypeptide chain. Each subunit is composed of one or more rRNA molecules and a variety of proteins. It is devoid of any membrane.
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Ribosome has lack of membrane because which allows them to pick up translational RNA released from the nucleus and grab onto free amino acids in order to produce protein chains.
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Ribosome as
Non-membrane bound organelles are more solid structures that are not fluid-filled, so they have no need for a membrane.
Non-membrane bound organelles are more solid structures that are not fluid-filled, so they have no need for a membrane.
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Ribosomes lack membranes as they help in protein synthesis . ... Ribosome lack membrane so somewhere it also not called organelles.
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Ribosome is the cell orangelle which lack membrane but lysosome, golgi body, nucleus have membrane
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Look , suppose we're not sure then we can go through process of elimination about option a) i.e. Ribosome we're not sure , option b) Lysosomes is membrane bound organelle meaning as they have 1 membrane so we can eliminate this option , option c) Golgi bodies do have 1 membrane again we can eliminate this one too , finally option d) Nucleus , as we know nucleus has 2 membrane one separating from the cytoplasm (the outer one) and one separating nucleolus from the outer nucleus (the one inside) so we should eliminate this one too , so it's apparent that answer is option a) Ribosome.
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Ribosomes lack the membrane. They are present individually in the cell cytoplasm and make the lining of RER. They have genetic materials in the nucleus which consists of DNA,PROTEINS AND RAN.
