Levels of Organization
The smallest level of organization.
cell
What is the difference between passive and active?
Passive goes from high to low and doesn't use energy. Active is the opposite.
What is endocytosis?
Using a vesicle to move things into the cell
What is the effect of insulin and glucagon?
Insulin lowers blood sugar and glucagon raises blood sugar
a stable internal environment
homeostasis
What makes up organ systems?
What is the energy molecules?
ATP
What is osmosis?
The movement of water
How will the body react to high temperatures and low temperatures?
High temps: Sweating, vasodialation
Low temps: Shivering (muscle contraction), vasoconstriction
You eat an ice cream sundae. What happens to your blood sugar level and how does your body respond to the change?
level rises and body responds by lowering it
Level between cell and organ.
tissue
What is the difference between facilitated diffusion and diffusion?
Facilitated diffusion needs help from a protein.
Which transports move high to low?
Osmosis, diffusion and facilitated diffusion
What are examples of positive feedback and negative feedback?
Postive- child birth, blood platellets
Negative- blood sugar, blood ph, temperature
the type of feedback loop for labor contractions
positive
A stomach is an example of this level.
organ
What happens to your cells if you were to drink salt water?
Water moves out because it creates a hypertonic solution around the cells
What do the molecules move across for cell transport?
The cell membrane and sometimes need help from a protein
Give me an example of a stimulus and it's response.
Answers will vary
What is the difference between positive and negative feedback?
positive: amplifies the response
negative: opposite to get back to normal
Put these in order from smallest to largest: tissue, atom, organism, cell, organ system.
atom, cell, tissue, organ system, organism
What is hypertonic vs hypotonic?
Hypertonic (more water inside so it moves out and shrivels)
Hypotonic (less water inside so it swells because water moves in)
Which transport uses a protein and energy?
Molecular pumps
How will the kidneys react to not drinking water?
They will hold more water in to maintain homeostasis
What is vasoconstriction and vasodialation?
vasoconstriction- constricting blood vessels
Vasodialation- dialating or opening blood vessels