Macromolecules
What are the four macromolecules?
-Proteins
-Carbohydrates
-Lipids
-Nucleic Acids
What is the purpose of enzymes?
They speed up reactions
What is stored in the nucleus?
DNA
What does semi-permeable mean?
Does water move with or against the concentration gradient?
With
Which macromolecule gives us quick energy?
Carbohydrates
What goes into the enzyme?
The substrate
What surrounds the cell and decides what enters the cell?
Plasma membrane, cell membrane
What is the structure of a phospholipid?
Hydrophilic head, hydrophobic tail
If a solution is hypertonic, does it have a higher or lower concentration of solute?
Higher
What is the monomer of lipids?
What does the lock and key model mean?
The substrate perfectly fits into the enzyme.
What produces energy for the cell?
Does active transport move with or against the concentration gradient?
What does isotonic mean?
The concentrations are equal, water is moving in and out at the same speed
What is the function of nucleic acids?
Genetic information
What enzyme is found in our saliva?
Amylase
What is the purpose of ribosomes?
Produce (Synthesize) Proteins
What is the difference between endocytosis and exocytosis?
Is water considered a solute or solvent?
Solvent
Which macromolecule makes up enzymes?
Proteins
What are the three components that impact enzyme function?
-Temperature
-pH
-Concentration
What is the purpose of the lysosome?
Uses enzymes to break down waste
It brings bacteria and dead material into the cell
What proteins does water use to diffuse across the membrane?
Aquaporins