prokaryote, also spelled procaryote, any organism that lacks a distinct nucleus and other organelles due to the absence of internal membranes. Bacteria are among the best-known prokaryotic organisms. The lack of internal membranes in prokaryotes distinguishes them from eukaryotes. The prokaryotic cell membrane is made up of phospholipids and constitutes the cell’s primary osmotic barrier.

Prokaryotic and eukaryotic cells are the only kinds of cells that exist on Earth. Prokaryotes.

Eukaryotic gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm. Further regulation may occur through post-translational modifications of proteins. The differences in the regulation of gene expression between prokaryotes and.

Bacteria and Archaea are both prokaryotes but differ enough to be placed in separate domains. An ancestor of modern Archaea is believed to have given rise to Eukarya, the third domain of life. Major groups of Archaea and Bacteria are shown. Characteristics of bacterial phyla are described in Figure 22.12 and Figure 22.13.

Question 1: Explain about the main difference between prokaryotes and eukaryotes? Answer 1: The.

1 NEET 2023 MCQ (Single Correct Answer) + 4 - 1 Among eukaryotes, replication of DNA takes place in : A S phase B G 1 phase C G 2 phase D M phase Check Answer 2 NEET 2023 MCQ (Single Correct Answer) + 4 - 1 Match List I with List II: Choose the correct answer from the options given below : A A-IV, B-II, C-I, D-III B A-IV, B-I, C-II, D-III C