Which of the following statements, from the cell theory, best supports the idea that viruses are non-living?
Sticker With A Dead Green Coronavirus Stock Illustration - Illustration of green, cartoon: 176981141
a
All animals are composed of cells.
b
All Living things are composed of cells.
c
All viruses are composed of one nucleic acid and protein.
d
All cells are produced from other cells.
What is the high-energy molecule that is the end product of the digestion of carbohydrates.
a
glucose
b
adp
c
protein
d
water
a
glucose
Herpes simplex and HIV are excellent examples of which of the following?
a
immunity
b
antigens
c
bacteria
d
virus
d
virus
Viruses reproduce through the use of host cells. In this process, viruses reproduce by injecting their DNA into the host cell and using the cell's structures to create copies of itself. After numerous copies are made, the host cell bursts and the new viruses are released. Depending on the type of virus and the host cell, hundreds or thousands of viruses can be released in this burst. These viruses then go on to reproduce through new host cells. Bacteria, however, reproduce using binary fission. In this process, a bacterium splits into two identical daughter cells. In favorable conditions, bacteria can divide once every 20 minutes. This means that a single bacterium can turn into a colony of over a billion bacteria in about ten hours.
Which statement correctly compares viral and bacterial reproduction?
a
Both viruses and bacteria can reproduce without the help of other organisms.
b
Both viruses and bacteria must have very large populations in order to reproduce.
c
Both viruses and bacteria can create large populations in a short time period.
d
Both viruses and bacteria must destroy themselves after they have reproduced.
c
Both viruses and bacteria can create large populations in a short time period.
Summarize the lytic cycle.
10.7A: The Lytic Life Cycle of Bacteriophages - Biology LibreTexts
a
A virus injects its genetic material into the host cell, copies itself using the host's structures and resources, and then forms new viruses that burst out of the host cell.
b
The viral DNA incorporates itself with the host cell’s and replicates whenever the host cell replicates itself.
c
A virus copies its own genetic material and then splits its cell membranes in half to form two identical viruses.
d
A virus lays eggs on the host cell’s protein coat, which then hatch and move on to infect other cells.
a
A virus injects its genetic material into the host cell, copies itself using the host's structures and resources, and then forms new viruses that burst out of the host cell.
When a cell needs to get rid of waste products and push them OUT OF THE CELL, which term best describe the process by which cells release substances from the cell?
a
endocytosis
b
phagocytosis
c
exocytosis
d
pinocytosis
c
exocytosis