Chemistry of Life
Macromolecules
Enzymes
Cell Membrane
Photosynthesis
100
This type of molecule has an unequal distribution of electrons resulting in slight negative and positive charges on different regions of the structure.
What are polar molecules?
100
These are the four (4) macromolecules
What is proteins, carbohydrates, lipids and nucleic acids.
100
It is represented by Ea and is lowered by enzymes.
What is activation energy?
100
Which macromolecule is the major structure of the plasma membrane?
What are phospholipids?
100
These are the two (2) products of photosynthesis
What is glucose and oxygen
200
This is a collection of hydrogen bonds that hold water molecules.
What is cohesion?
200
This macromolecule stores all hereditary information and carries protein-coding instructions.
What is nucleic acids
200
(True or False) - "Enzymes change shape after a reaction?"
What is false
200
This is a molecule moving from an area of high concentration to low concentration
What is diffusion
200
These are the reactants needed for photosynthesis to occur (3 factors)
What are carbon dioxide, light, and water?
300
The slight negative charge of oxygen in one water molecule is attracted to the slight positive charge of hydrogen in another water molecule.
What are hydrogen bonds?
300
This is the semipermeable barrier that protects the cell and all that is enclosed in it.
What is plasma membrane
300
(Fill in the blank) "Raising the temperature slightly will ____________________ the rate of a reaction.
What is increase?
300
A solution that has higher water concentration than the cell's interior.
What is a hypotonic solution?
300
The enzyme that allows carbon dioxide to be converted into glucose during the Calvin cycle.
What is Rubisco?
400
This property explains the ability of a water strider to walk on water
What is surface tension
400
This is a reaction in which two (2) molecules become covalently bonded to each other through the loss of a small molecule, usually water.
What is dehydration synthesis?
400
This type of inhibition occurs when a substrate binds to a site other than the active site to prevent enzyme catalysis.
What is allosteric inhibition?
400
Substances that cannot passively flow through the plasma membrane are this.
What is polar/charged/hydrophilic/large?
400
(Fill in the blank) "Chlorophyll and other pigments involved in the absorption of solar energy reside within the _________ ____________ of chloroplasts"
What is thylakoid membrane
500
This chemical reaction in a cell releases energy and is denoted with a negative delta "G".
What is an exergonic reaction?
500
The atomic ratios of this macromolecule are C- 1, H- 2, O- 1
What are carbohydrates?
500
40 degrees represents this value for this particular enzyme.
What is optimal temperature?
500
These structure are embedded in the cell membrane and can play a role in cell signaling.
What are glycoproteins?
500
Acts as a source of electrons and protons during the light-dependent reactions.
What is water?