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Biology Review

What are 7 characteristic of life? Cells, Homeostasis, Metabolism, Response, Reproduction, Heredity, and Growth
Cell the smallest unit of life
Homeostasis stable internal conditions
Reproduction make new organisms
Metabolism chemical reaction
Growth adding new cells
Response react
Heredity pass on traits
Are viruses living? No
Why isn't a virus considered a living organism? 1. Viruses are not made of cells. 2. Viruses cannot maintain homeostasis. 3. Viruses do not grow. 4. Viruses cannot reproduce on their own. 5. Viruses have no metabolism.
What are two basis parts of a virus? 1. Genetic information (DNA or RNA) 2. Capsid: Protein Coat
How does a virus reproduce ? First, the attaches itself to a host cell. Then, the virus injects it genetic material into the host cell. Secondly, the host cell uses the genetic material to make new viruses. Lastly, the host cell splits open, releasing the viruses.
Are bacteria alive? Yes. Bacteria are made of cells. They grow and reproduce. They have metabolism and they pass traits onto the offspring
What does Bacteria reproduce by? Binary fission (cell division). Make its own copy of its DNA. Split apart and both of the cell has its own DNA. Offspring are produce and are identical to the parent
What are four types of macromolecules? Carbohydrate, Lipid, Protein, and Nucleic Acid
All of the biomolecules contain which element? carbon
List examples of carbohydrates Monosaccharide (1 ring) A. glucose Disaccharide (2 rings) Polysaccharide (3 or more) A. starch B. cellulose
List examples of lipids Saturated fats, Unsaturated, and Phospholipids
What kind of macromolecule are polysaccharides? carbohydrate
Created by: tnge