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Yuri [45]
3 years ago
5

What is it called when a molecule moves across a membrane through a

Biology
1 answer:
Rainbow [258]3 years ago
6 0

Answer:

D. passive transport

Explanation:

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Cells spend the majority of their time in?
Sidana [21]
OK so the answer you are looking for is most likely going to be inter phase because that is what most cells spend their time in.
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Describe the action mechanism of labile toxin by placing the steps in the correct order.
vaieri [72.5K]
I cannot found the exercise anywhere, so I will just explain how the toxin works.

A toxin is a toxic substance made by a living organism such as a bacterium, a fungus, a plant or an animal.

Labil toxins are toxins which are by easily degraded. among these toxins, there is the toxin of Escherichia coli and the cholera toxin of <span>Vibrio cholerea.
</span>
The intracellular target of cholera toxin is adenylate cyclase, one of the most important eukaryotic cell regulatory systems. This enzyme is involved in the conversion of ATP into a cyclic AMP (cAMP), a crucial intracellular messenger in a wide variety of cellular processes.
Cholera toxin catalyzes the transfer of ADP-ribose from NAD (Nicotinamide Adenine Dinucleotide) to a specific arginine residue of the Gsa protein, resulting in the activation of adenylate cyclase and consequently the increase of the intracellular level cAMP. AMPc activates a cAMP-dependent protein kinase, which leads to phosphorylation of the protein, modification of ion transport and finally diarrhea.
6 0
3 years ago
Which of the following best summarizes the reason living things depend on oxygen? Question 6 options: Oxygen is an element of wa
Bess [88]

The correct answer is option A

Water is the most important component of all living beings. The dependence of organisms on oxygen is much because it an important component of water which is required for the survival. The various types of life processes and metabolic reactions depends on the water to take place. The body is dependent on water for it.


3 0
3 years ago
The coat that surrounds the genetic material of a virus is made of what material? (
Anettt [7]

Answer:

Protein

Explanation:

  • The protein-covered coat that surrounds the genetic material of a virus is called a capsid.
  • There are mainly three structural shapes of a capsid :
  1. Icosahedral
  2. Prolate
  3. Helical
  • The functions of capsid includes:
  1. Protection of viral genome i.e., either DNA or RNA from dissolution.
  2. Helps in penetration of virus in host cells.

For More Information:

brainly.com/question/17846775

5 0
3 years ago
Read 2 more answers
Which country's colonists maintained a profitable fur trade in North America
Tom [10]

Answer:

The North American fur trade was an industry and activity related to the acquisition, trade, exchange, and sale of animal furs in North America. Aboriginal peoples in Canada and Native Americans in the United States of various regions traded among themselves in the pre–Columbian Era. Europeans participated in the trade from the time of their arrival in the New World, extending the trade's reach to Europe. The French started trading in the 16th century, the English established trading posts on Hudson Bay in present-day Canada during the 17th century, while the Dutch had trade by the same time in New Netherland. North American fur trade was at its peak of economic importance in the 19th century, and involved the development of elaborate trade networks.

The fur trade became one of the main economic ventures in North America attracting competition among the French, British, Dutch, Spanish, and Russians. Indeed, in the early history of the United States, capitalizing on this trade, and removing the British stranglehold over it, was seen as a major economic objective. Many Native American societies across the continent came to depend on the fur trade as their primary source of income. By the mid-1800s changing fashions in Europe brought about a collapse in fur prices. The American Fur Company and some other companies failed. Many Native communities were plunged into long-term poverty and consequently lost much of the political influence they once had.

Explanation:

7 0
3 years ago
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