Answer the following questions-
Do bacteria have a nucleus?
Do bacteia have different shapes?
Do bacteria have a cell
membrane?A cell wall?
How fast and how do bacteria divide ?
Are bacteria prokaryotes or eukaryotes?
What are viruses - are they cells? Are they alive? What are they made of? Do NCERT based answer.
Answers
Answer:
Yes For First 4 questions
Explanation:
Mark BRAINILIST✔
Answer:
(a)Bacteria are considered to be prokaryotes, which means they do not have a nucleus
(b) They come in many shapes, including spheres, rods, spirals, crescents, and even stars.
(c) yes ! bacteria have a cell membrane and cell wall.
(d) The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. Each daughter cell is a clone of the parent cell. When conditions are favourable such as the right temperature and nutrients are available, some bacteria like Escherichia coli can divide every 20 minutes.
(e) bacteria are prokaryotes
(f)A virus is a infectious agent that replicates only inside the living cells of an organism. Viruses are not cells.
no, viruses are not alive. virus is made up of a core of genetic material, either DNA or RNA, surrounded by a protective coat