which of the following is a characteristic of a virus? in course hero

Which of the following is the main function of viruses?

The main function of viruses is to perform reproduction. Hence, they also don't grow, feed, respire or excrete. Option (c) is correct. Let's consider each option one by one: (a) Viruses develop? No! Viruses can't grow in their size or shape or something like that.

What are the characteristics of viruses?

Viruses don't have any kind of glucose molecules. So that they can break down in order to undergo cellular respiration. Actually they don't have any kind of nutrients. Viruses don't produce any metabolic wastes. (c) Viruses reproduce? Yes! They do but only inside their living host. Viruses are obligate intracellular parasites.

Do viruses form replicas outside their host?

They are inert outside their host. Viruses utilise the biosynthetic machinery of the host to make their replicas. About 25 minutes after initial infection, most viruses form their 200 replicas within their host. (d) Do viruses have nuclear membrane?

Do viruses undergo cellular respiration?

They don't possess any kinda nutrients and they also don't undergo metabolism & also don't produce energy. (b) Viruses undergo cellular respiration? No!

Which of the following is a characteristic of a virus?

Viruses do not have any organelles including nucleus. They just have a protein coat with genetic material inside them. The main function of viruses is to perform reproduction. Hence, they also don't grow, feed, respire or excrete.

What characteristics do all viruses have in common?

Viruses have several common characteristics: they are small, have DNA or RNA genomes, and are obligate intracellular parasites. The virus capsid functions to protect the nucleic acid from the environment, and some viruses surround their capsid with a membrane envelope.

What are viruses quizlet?

What is a virus? An extremely tiny infectious agent that is only able to live inside a cell, and a tiny bundle of genetic material - either DNA or RNA - carried in a shell called a viral coat or capsid which is made up of protein.

What is the basic structure of a virus?

Viruses are much smaller than bacteria and consist of a single- or double-stranded nucleic acid (DNA or RNA) surrounded by a protein shell called a capsid; some viruses also have an outer envelope composed of lipids and proteins. They vary in shape. The two main classes are RNA viruses and DNA viruses.

What are 5 characteristics of a virus?

These are: 1) attachment; 2) penetration; 3) uncoating; 4) replication; 5) assembly; 6)release. As shown in , the virus must first attach itself to the host cell. This is usually accomplished through special glycoprotiens on the exterior of the capsid, envelope or tail.

What is a characteristic of a virus quizlet?

-very small and simple structure. -acellular, infectious particles. -obligate intracellular pathogen (only replicate within living host cells) virus components. capsid: outer protein coat, composed of protein subunits called capsomeres.

Which of the following best describes a virus quizlet?

Which of these best describes a virus? a protein capsid and genetic material, in the form of either RNA or DNA.

What characteristics of living things do viruses have quizlet?

The characteristics that viruses have common with living organisms are reproduction and heredity. They can only reproduce inside the host cell and they do have DNA or RNA.

Which of the following do all viruses have?

All viruses contain nucleic acid, either DNA or RNA (but not both), and a protein coat, which encases the nucleic acid. Some viruses are also enclosed by an envelope of fat and protein molecules. In its infective form, outside the cell, a virus particle is called a virion.

What are the 4 main parts of a virus?

Viral chromosome or nucleic acid is coiled with the help of some polyamines or internal proteins.Component # 2. Capsid (Sheath, Coat):Component # 3. Envelope:Component # 4. Enzymes:

Which two statements are characteristics of a virus choose two?

Which two statements are characteristics of a virus? A virus typically requires end-user activation. A virus can be dormant and then activate at a specific time or date.

How many replicas do viruses have?

They are inert outside their host. Viruses utilise the biosynthetic machinery of the host to make their replicas. About 25 minutes after initial infection, most viruses form their 200 replicas within their host.

Do viruses have organelles?

Viruses do not have any organelles including nucleus. They just have a protein coat with genetic material inside them. The main function of viruses is to perform reproduction. Hence, they also don't grow, feed, respire or excrete.

Do viruses have glucose?

Viruses don't have any kind of glucose molecules. So that they can break down in order to undergo cellular respiration. Actually they don't have any kind of nutrients. Viruses don't produce any metabolic wastes.