A prokaryotic cell is primitive in organisation. It has an undefined nuclear region called nucleoid (nuclear membrane is absent) and membrane bound cell organelles are also absent. Show More | ShareSave Class 9BIOLOGYCELL-THE FUNDAMENTAL UNIT OF LIFE Topper's Solved these Questions CELL-THE FUNDA...
In contrast, a prokaryotic cell (right) does not have membrane-bound DNA and also lacks other membrane-bound organelles as well. © 2010 Nature Education All rights reserved. How Did Cells Originate? Researchers hypothesize that all organisms on Earth today originated from a single cell that ...
Which structures do prokaryotic cells always lack? Which three internal structures of a normal cell does a Prokaryotic cell lack? What do prokaryotic cells lack compared to eukaryotic cells? What do prokaryotic cells lack? a. nucleolus b. cell membrane c. all of the above What are the ...
Prokaryotic literally means 'before the nut or kernel', referring to the nucleus of the cell. The genetic material is circular; it is neither organised nor contained within a specialised membrane. Bacteria are prokaryotes and range in size from 0.2 – 2.0 µm. What does prokaryotic mean in ...
Watch complete video answer for “What is a mesosome in aprokaryotic cell? Mention the function” of Biology Class 11th. Get FREE solutions to all questions from chapter CELL FUNDAMENTAL UNIT OF LIFE.
Compare prokaryotic and eukaryotic cells. How does a prokaryotic cell differ from a eukaryotic cell? What are the contrasting characteristics of prokaryotic and eukaryotic cells? Describe prokaryotic and eukaryotic cells. How do prokaryotic cells differ in size from eukaryotic cells?
Ribosomes are organelles responsible for protein synthesis, a process that every cell must undertake to ensure the survival of the organism, whatever its overall size, shape and function. Each ribosome consists of a large subunit and a small subunit, both of which include ribosomal RNA (rRNA) ...
Many researchers today believe that the first cells or unicellularprokaryoticorganisms did not arise from any precursor cell. They were formed from a biological force still unknown to the human race today. Though highly disputed, this theory still violates the cell theory. Mitochondria and chloroplasts...
Proton motive force is a common phenomenon found in eukaryotic cells. It is the movement of protons across membranes of organelles like the mitochondria or the chloroplast. This movement of proton is down the concentration gradient.Answer and Explanation: ...
What is the role of the nucleus in cell division? The Nucleus: In eukaryotic cells, the nucleus holds the DNA. DNA is arranged in long strands, each being called a chromosome. The normal human nucleus has 46 chromosomes. These chromosomes are identical in each cell, thanks to the process ...