1: Human Biology
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Photosyntehsis Equation
CO2 + H20 –> C6H1206 + O2
Cellular Respiration Equation
C6H12O6 + 6O2 –> 6CO2 + 6H2O + ATP
What is an enzyme
a biological catalyst
What is a catalyst
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
Name the three factors in enzyme activity
1: Temperature 2: Substrate concentration 3: Acidity (ph)
Name the four factors in the speed of a reaction (chemical or nuclear)
1: Reactant Concentration 2: Surface Area 3: Temperature 4: Catalyst
Catalyst lower the…
activation energy of a reaction
What is water on the ph scale
Neutral (7)
Which is more muscular: the left or right ventricle
left ventricle
The superior vena cava comes from the…
head
The tricupsid valve lets blood flow from the…
vena cava to the right artium
The pulmonary valve lets blood flow from the…
right atrium to the pulmonary artery
What does the pulmonary artery and vein do?
bring the blood to the aalveoli in the lungs to oxygenate the blood through capillaries
The mitral valve lets blood flow from the…
pulmonary vein to the left atrium
What is the aorta
the starting artery from the heart
The aortic valve…
lets blood flow from the left atrium to the aorta
The defining features of an artery are
• Thick muscular walls - High pressure - Brings Blood away from heart
The defining features of a vein are
• Thinner walls than arteries, but thicker than capillaries - Lower pressure than arteries - brings blood to the heart - has smooth muscle lining as valves to push blood
The defining features of a capillary are
• One cell thick - Allows for diffusion to happen - Lets O2, CO2 and other nutrients and waste travel through the bloodstream
What is diffusion
The movement of particles from high concentrations to low concentrations
What is the skull called
the cranium
What is the femur
thigh bone
What is the humerous
upper arm bone
What is the shin bone called
the tibia