Test Flashcards
(31 cards)
What does selectively permeable membrane mean? What does it allow to move in and out of the cell?
It means only some things can move in and out. It allows, water, nutrients, alcohol, oxygen, and carbon dioxide.
Define the words solvent and salute and give an example
Solvent water, example water, solute anything that dissolves in water, example salt, sugar, ions
What is the definition of equilibrium?
When a solute will always move till it’s equal with the solvent
Diffusion is the movement from a blank concentration to a blank concentration
HIGH. LOW.
Osmosis is the blank of water if we move from a blank to a blank concentration
Diffusion. High. Low.
There are three main osmosis terms what are they and what do they mean number one
Isotonic when there is an equal amount of water in both sides of the membrane, the cell stays the same
There are three main osmosis terms what are they and what do they mean number two
Hypertonic when there is more water inside and more salt outside the cell shrink
There are three main osmosis terms what are they and what do they mean number three
Hypotonic when there is more salt inside and water out the cell expands and sometimes bursts
Water moves towards
Salty things
What is another name for germs?
Pathogen
Name four different ways that diseases are transmitted
Shaking hands, sharing water, sneezing, and rabies
What are the two lines of defence the body uses to stay healthy and what do they do?
The skin protects your body from germs, injury and helps keep you from drying out.
Organ linings protect them and help them do their jobs, like absorbing nutrients or moving air.
What are two examples of eternal skin defenses?
Nose lining and stomach lining
What are the two types of immune responses and what makes them different?
Innate immune response all living things can mount this type of response
Acquired immune response, pathogens, or antigens
What is a phagocyte?
A white blood cell that fights infections
How does an innate immune response work?
A flow of fluid cells and dissolved substances from the blood goes to the site of the infection
What is the difference between a pathogen and an antigen?
A pathogen is the whole germ causing the disease, while an antigen is just the part of it that your immune system recognizes and attacks.
How does an acquired immune response work
It attacks a specific invader, which is a pathogen or antigen
What is created after an acquired immune response?
It creates antibodies
What is the vaccine and how does it work?
A vaccine is something that weekends the form of a disease and makes us immune
What is it called when our immune system overacts to a stimuli?
We get an allergic reaction
Name four allergens
Pollen food, bee stings, and animals
What does the body release when an allergy attack occurs? What are the side effects?
Histamine runny nose, and watery eyes
A severe allergic reaction is known as what what do people use to stop this reaction
Anaphylactic shock, EpiPen (adrenaline shots)
