Subatomic Particles
What subatomic particle has a positive charge and exists in the nucleus?
Protons
A molecule that shares electrons unevenly is described as...
Polar Bond
A fat is an example of what type of macromolecule?
Lipid
Base 10 scale
Define anchoring junction and give an example.
Hold things together in a physical matter (ex: skin cells)
What subatomic particle has no charge and exists in the nucleus?
Neutrons
When we have the same number of protons but a different number of neutrons we have a __________.
A polysaccharide is an example of what type of macromolecule?
Carbohydrates
If pH is 2, what is [H+] and [OH-]?
[H+] = 10-2
[OH-] = 10-12
What type of structure needs either alpha helix or beta-pleated sheets and is stabilized only by hydrogen bonds?
Secondary Structure
What subatomic particle has a negative charge and exists in orbits around the nucleus?
Electrons
Describe ionic bond.
Complete transfer of electrons.
Amino Acid
What type of diffusion has a protein and moves substances from high to low?
Facilitated Diffusion
True or false. Prokaryotes have no nucleus.
True. Prokaryotes have no nucleus, just a nucleoid region.
What subatomic particle determines the atomic number of an element?
Proton
An interaction between a negative atom with hydrogen in which hydrogen is already part of a polar covalent bond is a....
What is the subunit of DNA/RNA?
A nucleotide
What are the two parts of cell theory?
- All organisms are made of one or more cells
- New cells form only by the division of previously existing cells
How does a prokaryote cell divide?
Prokaryotes divide by cell fission.
What subatomic particle determines the atomic mass of an element?
Neutrons
Why do we like carbon, oxygen, nitrogen, and hydrogen?
Because they are the fundamental building blocks of life.
DNA and RNA is an example of what type of macromolecule?
Nucleic Acid
What type of structure is the same as tertiary, but has more than one subunit?
Quaternary Structure
What happens in prophase I what doesn't happen in prophase?
1. Homologous chromosomes pair up to form a tetrad
2. Sister chromatids cross over