Biology Review by Gen Ochoa

Viruses are made of DNA RNA and a prptein coat

genochoa29 — 2024-07-24 02:24:25 UTC

Viruses are nonliving organisms, and also there are plenty of variables of the same virus that's why there are no vaccines for HIV or SARS

Structures

genochoa29 — 2024-07-24 04:17:35 UTC

They have simple structures, that are principally made of a caspid , and a protein shell that contains the contamined DNA/RNA inside

Envelop structure

genochoa29 — 2024-07-24 04:19:33 UTC

Shaped like a ball its the outer layer the surface proteins, the caspid the iner layer and the content the DNA/RNA

Helical

genochoa29 — 2024-07-24 04:20:53 UTC

Some viruses have a long twisted or coiled shape, again the same structure surface porteins, caspid and genetic material

Polyhedral

genochoa29 — 2024-07-24 04:24:27 UTC

Same as the others described as viruses that are many- sided: surface proteins, caspid and genetic material

Bacteriophages

genochoa29 — 2024-07-24 04:26:40 UTC

The gorup of viruses that infects bacteria, can enter the body in many ways, the upper part is made of the caspid and the genetic material, the "body" is the Tall Shealth and finally the "legs" are called Tall fibers.

Pathogen

genochoa29 — 2024-07-24 04:27:20 UTC

Any disease causing agent like bacteria and viruses

Types of infection

genochoa29 — 2024-07-24 04:39:06 UTC

Lytic infection: the host cell bursts and dies, the ataches and injects dna into a host bacterium, the viral DNA forms a cicle, the cell produces the viral parts, the host bacterium burst and the viruses infect other cells

Lysogenic infection: doesn't inmediatly harm, the ataches and injects dna into a host bacterium, the viral DNA forms a cicle, the viral DNA combines with the hsit DNA , the infected host cell is infected and reproduces, and then it the cell may produces the viral parts, the host bacterium burst and the viruses infect other cells

Viruses are always bad

genochoa29 — 2024-07-24 04:40:12 UTC

genochoa29 — 2024-07-24 04:41:07 UTC

Although Bacterias are Pathogens and therefore are agent of infectiosn there are good and bad bacteria

Bacterias are alive

genochoa29 — 2024-07-24 04:42:35 UTC

Bacterias have DNA and are also living organisms, it can have spherical, rod adn spiral shape

They dont have any organelles

genochoa29 — 2024-07-24 04:42:52 UTC

Movement

genochoa29 — 2024-07-24 04:43:34 UTC

They move through a flagellum that is like a tail that helps them "swim"

2024-07-24 06:01:01 UTC

Fungi is divided into 3 groups: single-celled yeasts, molds, and true fungi. the last 2 are multicellular.

Plants and fungi - differentiations

2024-07-24 06:05:37 UTC

plants go through photosynthesis and fungi absorb food from the environment.
- Fungi make hyphae that release substances that break down food.
fungal cell walls are made of chitin, not found in plant but in insects.

Types

2024-07-24 06:10:38 UTC

Primitive: live in water, have spores with flagella that help them move.
Sac: contains spores for reproducing, yeast is an example.
Bread molds: food from decomposing matter, exception - Mycorrhizae: mualistic relationships with roots exchanging nitrogen with a place to live in.
Club: fruiting bodies like clubs. mushrooms, example.