Day 1
What subject is Treelow studying in university?
Neuroscience
What is inside the nucleus of a cell?
DNA
What is a cation?
Positively charged ion
8
What is the difference in electronegativity if oxygen has an electronegativity of 3.5 and nitrogen has an electronegativity of 3.0
0.5
What is biochemistry?
Chemical reactions that occur in biological systems
What do the ribosomes do?
Synthesize proteins
how many electrons are lost or gained if an atom has a charge of +4
loses 4 electrons
Why couldn't we draw NO2 by itself?
NO2 is a polyatomic ion and needs to gain one more electron to become stable
What is polarity
Distribution of an electrical charge to an atom in a compound causing a shift in the flow of electrons
What measurement do we use for the atomic mass of an element
atomic mass unit (amu)
Why can't DNA leave the nucleus? How can DNA leave to be made into proteins?
It can get damaged and if DNA get's damaged, all copies of the cells will have damaged DNA. DNA will replicate itself into RNA which that can leave the nucleus
What is the bond that is held by a metal and non metal
ionic bond
what is the only positively charged polyatomic ion?
ammonium
Is C7H16 (heptane) polar or non polar and explain why
non polar because there is an equal distribution of charge and flow of electrons
C6H12O6+_____ -----> H2O + CO2 +_____
O2 and ATP
What are the two processes of protein synthesis and which comes first of the two?
Transcription and translation, transcription
Why does ice turn into water when heated?
Bonds that hold water together are broken and so it separates
Can atoms that are the same bond together? Give an example
Yes they can but they really don't like to. HOFBrNCl's diatomic molecules
Would C7H16 (heptane) mix with water? Explain
No because it is non polar and water is polar
Name one property of a solid
2) atoms are tightly packed together
3) cannot be compressed into a different shape
atomic mass is the weighted average of all isotopes while the mass number is the weight of one isotope
What are the central atoms in an amino acid?
N-C-C
Name the three types of bonds
Pure covalent, polar covalent, ionic bond
Would C2H6O (ethanol) dissolve in water? explain
Yes it will because ethanol is polar like water