macromolecules
how many macromolecules are there? name all of them
4- lipids, nucleic acids, carbs, proteins
the main purpose of photosynthesis is to?
transform light energy into chemical energy stored in sugars
how many body systems do we have? name ALL of them
11- muscular, endocrine, integumentary, reproductive, respiratory, skeletal, digestive, immune, circulatory, urinary, and excretory system
homeostasis refers to
maintaining stable internal conditions
what is the powerhouse of the cell?
mitochondria
proteins are made up of...
amino acids
where does photosynthesis take place in the plant cell?
chloroplast
of the 11 systems, this system delivers oxygen and nutrients throughout the body
circulatory system
where does our "normal" body temperature hover around?
98.6 degrees fahrenheit
cystic fibrosis is considered this type of disease:
hereditary genetic disease
which of the 4 macros stores genetic information
nucleic acids
there are TWO molecules that work in order for photosynthesis to ta kke place, what are the TWO?
CO2 and H2O
of the 11 body systems, which system helps remove CO2 from the bloodstream
respiratory system
how does your body perform homeostasis when you are cold? hot?
cold- your body shivers which release energy to warm your body down.
hot- your body sweats which releases water droplets to cool the body up.
this thick material builds up in the lungs and pancreas of individuals with cystic fibrosis
mucus
which of the 4 macros is the bodyies main source of quick energy
carbs
what is the green pigment that absorbs sunlight for photosynthesis called?
Chlorophyll
of the 11 systems, which system is responsible for sending electrical signals throughout the body to coordinate actions and responses
nervous system
in feedback mechanisms, this type of feedback increases or amplifies a change rather than reversing it
positive feedback
how living systems use energy and building blocks to function
of the 4 macros, which forms cell membranes and provides long term energy storage for the body
lipids
what is the formula for photosynthesis
6CO2 H2O converting to ---> C6H12O6 6O2
the circulatory system transports nutrients, oxygen, and water throughout the body using this fluid
blood
when your blood sugar rises after eating, the pancreas releases insulin to lower it. this is an example of what type of feedback mechanism?
negative feedback mechanism
in unit 1, you learn that all living systems ultimately depend on ONE major source of energy. identify this sorce AND explain why it is essential for life on earth
the sun - because it provides the energy that drives photosynthesis, which produces the chemical energy that all organisms depend on.