Biology TEKS 5.D - Viruses

A non-living infectious agent that is composed of genetic material (DNA or RNA) inside a Protein Coat.

Tags

TX.112.42.C.5.D.

All viruses are different, but what are two parts that a virus must have?

• Genetic Information (DNA or RNA)

• a lipid membrane

• a nucleus

• a protein coat

Tags

TX.112.42.C.5.D.

Viruses are considered tiny, non-living infectious agents. Viruses are not ________.

Tags

TX.112.42.C.5.D.

Categorize the characteristics of life from Viruses and Cells.

Groups:

(a) Viruses

,

(b) Kingdoms of Life

• Responding to the Environment is not possible

• Can Grow and Develop

• Cannot Metabolize Energy

• Need a HOST to Reproduce

• Non-Living Agents

• Respond to the Environment

• Are made of Cells

• Don't need a HOST to Reproduce

• Cannot achieve Homeostasis

• Are NOT made of Cells

• Homeostasis

• Cannot Grow and Develop

• Living Organisms

• Metabolizes Energy

Tags

TX.112.42.C.5.D.

Label the correct parts of the Virus in the picture.

a

b

c

Tail Fibers (Attachment)

DNA (Genetic Info)

Protein Coat (Protection)

Tags

TX.112.42.C.5.D.

Viruses cannot reproduce by themselves. What do viruses need to reproduce?

Tags

TX.112.42.C.5.D.

The projections on the surface of this virus help the virus with -

Tags

TX.112.42.C.5.D.

The bacteriophage is made of several parts:

This part is considered the genetic information - ​ ​ (a)  

The virus protects the DNA with this part - ​ ​ ​ (b)  

This part is used by the virus to attach to a cell - ​ (c)  

• a
• b
• c
• d
• e

Tags

TX.112.42.C.5.D.

When a virus invades a living cell, its ​ (a)  
takes over the cell's functions.

• protein coat
• genetic material
• receptors
• tail fibers

Tags

TX.112.42.C.5.D.

What part of the viruses serves as the protection for the viral genetic information?

Tags

TX.112.42.C.5.D.