The nucleus IS within the plasma membrane of the cell. It does have its own membrane, though. For a plant cell and <em>very</em> few animal cells, however, they have a <em>cell wall</em>, which is NOT within the confines of the plasma membrane.
The condenser lens, is placed between the light source and the specimen and it gathers and focuses the light rays in the plane of the microscopic field to view the specimen.
Answers
Intestinal glands, occupying the mucous membrane, secrete digestive enzymes, provide outlet ports for Brunner glands, and produce cells that replace surface-membrane cells shed from the tips of villi.
Explanation:
Answer:
The lytic cycle has 6 stages: Attachment, penetration, transcription, synthesis, maturation, and lysis.
Explanation:
- Attachment: is the first step of the lytic cycle, and it consists of the attachment of the virus to the host cell, which is the cell that the virus will infect.
- Penetration: once that the virus is attached to the host cell, this penetrates the cell's membrane to introduce its DNA. When the virus DNA is inside the cell's DNA is destroyed.
- Transcription: now the virus has all the machinery to reproduce itself. In other words, the cell starts the transcription of the virus's DNA.
- Synthesis: the cell synthesizes the virus' DNA and proteins.
- Maturation: in this process, the new virus is assembled and ready to be outside the cell.
- Lysis: as the viruses are ready to infect other cells, they go out of the host cell by lysis, which is a process where the membrane is broken and the cell dies to free what is inside.
