Biology Unit 1 Test Flashcards
Name the 4 Macromolecules
- Carbohydrates
- Nucleic Acids
- Lipids
- Protein
What is the Cell Theory?
All living things are made out of cells, cells are the basic unit of life of all organisms, and all cells come from pre-existing cells.
What is a Chemical Reaction?
When molecular bonds are broken or formed
What is a Substrate?
A molecule that the Enzyme works on
What Bonds Contain Energy?
Molecular bonds
What do you call a protein that speeds up chemical reactions?
Enzyme
What is a Polar Molecule?
Different charges on both sides of the molecule. One positive & One Negative.
What is a Product?
The resulting molecule of the reaction
What is an Enzyme?
Proteins that facilitate reactions (make them faster)
What is Cohesion? (Water Ver.)
When water sticks to itself
What is Adhesion? (Water Ver.)
When water sticks to other things
What is a Covalent Bond?
The sharing of electrons between atoms.
What is an Ionic Bond?
Complete transfer of valence electron(s) between atoms,
The interaction of several different species living in the same area is called?
Community
What kind of chemical bond holds together a water molecule?
Covalent Bond
What is the molecule called that the enzyme works on?
Substrate
An ecosystem involves?
All the species living in the same area and the influence of environmental factors such as sunlight and water
What is a tissue?
A collection of different cells that work together
What kind of chemical bond makes water molecules stick to other things?
Hydrogen bond
What is it called where the substrate binds to the enzyme?
Active Site
What kind of chemical bond makes water molecules stick to each other?
Hydrogen Bond
If you put a few atoms together what do they form?
A Molecule
What is the property of water that makes it form droplets?
Cohesion
Why do organisms need many different types of cells?
Different cells are specialized to perform specific functions.
What is the property of water that makes it possible for something to float?
Surface Tension
What is the difference between atoms and molecules?
Molecules are made of several atoms connected to each other
What is the property of water that makes it stick to other things like the windshield of your car?
Adhesion
What are the monomers of Carbohydrates (C+H+O)?
Sugar
What are the polymers of Carbohydrates (C+H+O)?
Starch or Complex Carbs
What are the monomers of Proteins (C+H+O+N)?
Amino Acids ( N-C-C )
What are the polymers of Proteins(C+H+O+N)?
Polypeptides ( N-C-C-N-C-C-N-C-C )
What are the monomers of Nucleic Acids (C+H+O+N+P)?
Nucleotides
What are the polymers of Nucleic Acids (C+H+O+N+P)?
Double Helix
Do Lipids (C+H) have monomers?
No
What are the polymers of Lipids (C+H)?
Fatty Acids & Triglycerides
What is the function of an organ?
Different cells and tissues in the organ work together to perform major functions
What are Biological Molecules made out of?
Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus, Sulfur
