Atoms & Molecules
If an atom has more electrons than protons, what is its charge?
negative
What bond shares electrons equally?
covalent bond
T/F: Some parts of organisms can be highly acidic.
true
What kind of cell has no nucleus or organelles?
prokaryotic cell
What does the atomic number represent?
number of protons
What bond exchanges electrons?
ionic bond
pH of 6-8
You look at the molecular structure of a compound and see four carbon rings. What is it?
steroid
What organelle isn't functioning correctly in a child with Tay Sach's disease?
lysosome
If a stable atom loses neutrons, what is it called?
radioisotope
What kind of bond is between two polar covalent molecules?
hydrogen bond
What increases the number of OH- molecules?
base
What functional group contains nitrogen?
amino
What organelle has ribosomes embedded in its surface?
rough endoplasmic reticulum
If an atom with 19 protons has a mass number of 42, how many neutrons does it have?
23 neutrons
If a molecule has a positive side and negative side, what kind of bond does it have?
polar covalent bond
If a base is mixed into an acidic solution, the pH will...
increase
What kind of protein do you want a lot of in your bloodstream?
high density lipoprotein
What organelle acts like an Amazon warehouse, packaging and shipping proteins?
Golgi complex
4
salt = solute
water = solvent
If a substance increases the number of H+ in a solution, what happens to the pH of the solution?
unsaturated = any double bond between carbons
saturated = all single bonds
What is the outer boundary of the cell made of?
phospholipids