Question: Which is not a cell organelle?

Nucleolus. Within the nucleus is a small subspace known as the nucleolus. It is not bound by a membrane, so it is not an organelle. This space forms near the part of DNA with instructions for making ribosomes, the molecules responsible for making proteins.

Which cell is not a cell organelle?

cell orgallenes include nucleus, cell wall, cell membrane, nucleous, cytoplasmic reticulum, gogis bodies/apparatus, chloroplast, ribosome, endoplasmic reticulum. and many more, but FAT DROPLET is not among them.

Which of the following is not a part of cell organelles?

The Correct Answer is Option 1 i.e Cytoplasm. Cytoplasm: It is a thick fluid found outside the nuclear membrane. Endoplasmic reticulum: It is a cell organelle membrane network of tubules like structure found in the cytoplasm.

Is Mesosome a cell organelle?

Mesosomes: membranous bacterial organelles.

Which cell is the longest cell?

nerve cell - In the human body, the nerve cell is the longest cell. Nerve cells are also called neurons that are found in the nervous system. They can be up to 3 feet long.

What does Mesosome mean?

: an organelle of bacteria that appears as an invagination of the plasma membrane and functions either in DNA replication and cell division or excretion of exoenzymes.

Do animal cells have Mesosome?

By the mid to late 1980s, with advances in cryofixation and freeze substitution methods for electron microscopy, it was generally concluded that mesosomes do not exist in living cells.

Whats the smallest cell in the human body?

sperm Features. The Cerebellums Granule Cell is the smallest cell in the human body that is between 4 micrometres to 4.5 micrometres long. The RBCs size also found roughly 5 micrometres. Most scientists suggest that sperm is the smallest cell in terms of volume.

Is a virus a life form?

Viruses are considered by some biologists to be a life form, because they carry genetic material, reproduce, and evolve through natural selection, although they lack the key characteristics, such as cell structure, that are generally considered necessary criteria for defining life.

Do viruses have DNA?

Most viruses have either RNA or DNA as their genetic material. The nucleic acid may be single- or double-stranded. The entire infectious virus particle, called a virion, consists of the nucleic acid and an outer shell of protein. The simplest viruses contain only enough RNA or DNA to encode four proteins.

What are the types of cell?

Cells are of two types: eukaryotic, which contain a nucleus, and prokaryotic cells, which do not have a nucleus, but a nucleoid region is still present. Prokaryotes are single-celled organisms, while eukaryotes can be either single-celled or multicellular.

What is true Mesosome?

Mesosomes are the invaginations of plasma membrane in bacteria. ... Thus, mesosomes help in cellular respiration. The folded invaginations increase the surface area of plasma membrane. They also help in cell wall formation.

What are the L form of bacteria?

Cell wall–deficient bacteria (CWDB), also known as L-phase or L-form bacteria, are bacterial variants that lack a cell wall, although they may in fact possess small amounts of peptidoglycan. The name L-form was given to these bacteria because they were discovered at the Lister Institute in London.

Hint: In order for you to answer the question, look at the options above. Which of the name seems odd when the name of the cell organelle comes in mind. You must also know each of the characteristics that a cell organelle has and how different it is from other cellular structures.

Which is not a cell organelle?

Complete answer: A cell is the structural and the functional unit of life. It is adorned with many cell organelles that carry out specific functions inside the cells. The most striking feature of cell organelle Which is not a cell organelle?

Which is not a cell organelle?

that it is a membrane bound structure made of phospholipids and they form a highly enclosed boundary inside the cell to perform various functions. The cell organelle found in mainly animal cells are the nucleus, smooth endoplasmic reticulum, rough endoplasmic reticulum, golgi complexlysosome, mitochondria, ribosome among many others.

Let us look at each of the functions of the cellular structure mentioned above. Mitochondria- It is famously known as the powerhouse of the cell. Ribosome-Ribosomes are minute granules like cell organelles that are found in both the prokaryotic and eukaryotic cells.

They perform the function of protein synthesis. They are of the type 70s and 80s respectively. Golgi complex-It is also known as the golgi complex.

What is an example of an organelle?

It is a membrane bound cell organelle that helps in the packaging of proteins into vesicles right before they are secreted. Thus they play an important role in the secretory pathway. Microsome-They are small vesicle-like structures that are formed from the endoplasmic reticulum when the eukaryotic cells are broken down in the laboratory. They are not present in the healthy cells So, the correct answer is option D.

They divide by their own means. They have evolved by the process of endosymbiosis when the cells have evolved and taken up cyanobacteria and proteobacteria which have then modified over the years to give rise to the chloroplast and the mitochondria.

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