¿Mystery Box?
The amount of water given to the plants
(Dependent variable, independent variable, constant)
Experiment: How amount of water affects plant growth.
Plant 1 gets 10mL of water
Plant 2 gets 20mL of water
Plant 3 gets 30mL of water
After 2 weeks the height of each plant is measured in centimeters.
Independent variable
Property of Water: Water molecules stick to each other
Cohesion
Ring shaped and made up of C,H,O
Carbohydrate
Enzymes ______________ activation energy.
(Increase or Decrease)
Decrease
Jelly like substance found in all cells
Cytoplasm
Observation or Inference?
That ball is blue
Observation
Property of Water: This is the reason why ice floats
Expansion upon freezing
Polymer of amino acids
Protein
Enzyme _________________ rate of reaction.
(Increase or Decrease)
Increase
Are enzymes reusable?
Yes
Property of Water: It takes a lot of energy to change the temperature of water
High heat capacity
or
Ability to moderate temperature
Nonpolar and has long chains of fatty acids
Lipid
Extreme heat will cause an enzyme to change shape.
What word do we use to describe an enzyme that has changed shape?
Denature
Makes proteins by reading DNA/RNA
Ribosomes
The name for the temperature that an enzyme works the best at.
Optimal temperature
Property of Water: Water is good at dissolving things that are polar
Universal solvent
Makes up DNA and RNA
Nucleic acid
What you have after an enzyme completes the chemical reaction.
This exits the enzyme after the chemical reaction.
Product(s)
Surrounds DNA, is a large organelle, and regulates cell processes.
Not found in prokaryotes
Nucleus
What are the three parts to the Cell Theory?
1. All organisms are made of cells
2. Cells are the basic unit of life
3. All cells come from preexisting cells
Why does water have the four properties that we have discussed in this class?
Cohesion - Sticky hydrogen bonds
Ability to moderate temperature - Lots of hydrogen bonds = lots of energy needed to break them
Expansion upon freezing - As the molecules slow down due to the cold, the hydrogen bonds cause the molecules to form a crystal structure
Universal solvent - Oxygens (-) surround the (+) of the polar solute. Hydrogens (+) surround the (-) of the polar solute
Protein
What happens to the rate of reaction as you increase the enzyme concentration?
Increases then levels out
Phospholipid bilayer is the structure of what?
Cell membrane