Stem cells can be used as - ANSWER a reliable tool to edit DNA
What is the fundamental unit of life?
how many types are there?
What are the types called? - ANSWER The fundamental unit of life is cells
There are two types of cells,
Prokaryotes and Eukaryotes
What is the difference between prokaryotes and eukaryotes? Give an example
of each - ANSWER Prokaryotes are smaller, without nuclei and membrane-
bounded organelles. They also have a smaller amount of DNA An example is
bacteria
Eukaryotes are larger with nuclei and membrane bounded organelles. Humans
are an example of eukaryotes
What is a nucleus - ANSWER where DNA is stored and where genes are
found
The outer shell of a cell is called the ___
The liquid inside a cell is called the ___ - ANSWER The outer shell of a cell is
called the plasma membrane
The liquid inside a cell is called the cytoplasm
what are the small and large molecules that all cells are made of called
respectively - ANSWER small: micromolecules
large: macromolecules (proteins, DNA/RNA, polysaccharides)
what is a covalent bond - ANSWER A chemical bond formed when two atoms
share electrons.
, what kind of bonds are in water? - ANSWER covalent
Are electrons always shared equally? - ANSWER no, the atom with more EN
attracts the electrons for more time, so the bond is polarized, with a more
negative side by the more EN atom.
what happens between polarized water molecules? - ANSWER the positives
attach to the negatives making a hydrogen bond. this is a transient bond, one
negative moves between positive charges, it is not rigid
what does it mean if a molecule is nonpolar - ANSWER that means that the
majority of the bonds are non polar
is fat polar or non polar? what is it made of? - ANSWER it is non polar and
made of C and H with non polar covalent bonds between them
what happens when there are lots of fat molecules in a glass of water? why? -
ANSWER the fat all comes together, because that means there is less surface
area and more space for the water to go around and hydrogen bond. It also is
more disordered, which is favorable.
what does NMR tell us in general and what does it tell us specifically about the
fat in the water - ANSWER you can use NMR to figure out how mobile water
is. usually it is quite mobile, but in this experiment a small amount of the water
isn't mobile. That is because just around the fat, the water is rigid and ice like
Is a carbon hydrogen bond polar? - ANSWER no
why do the fat molecules all come together? - ANSWER fats are repelled by
water
fats together have a lower surface area
water increases in disorder (more hydrogen bonding partners)
`
monomer - ANSWER a molecule that can be bonded to other identical
molecules to form a polymer.
What is the fundamental unit of life?
how many types are there?
What are the types called? - ANSWER The fundamental unit of life is cells
There are two types of cells,
Prokaryotes and Eukaryotes
What is the difference between prokaryotes and eukaryotes? Give an example
of each - ANSWER Prokaryotes are smaller, without nuclei and membrane-
bounded organelles. They also have a smaller amount of DNA An example is
bacteria
Eukaryotes are larger with nuclei and membrane bounded organelles. Humans
are an example of eukaryotes
What is a nucleus - ANSWER where DNA is stored and where genes are
found
The outer shell of a cell is called the ___
The liquid inside a cell is called the ___ - ANSWER The outer shell of a cell is
called the plasma membrane
The liquid inside a cell is called the cytoplasm
what are the small and large molecules that all cells are made of called
respectively - ANSWER small: micromolecules
large: macromolecules (proteins, DNA/RNA, polysaccharides)
what is a covalent bond - ANSWER A chemical bond formed when two atoms
share electrons.
, what kind of bonds are in water? - ANSWER covalent
Are electrons always shared equally? - ANSWER no, the atom with more EN
attracts the electrons for more time, so the bond is polarized, with a more
negative side by the more EN atom.
what happens between polarized water molecules? - ANSWER the positives
attach to the negatives making a hydrogen bond. this is a transient bond, one
negative moves between positive charges, it is not rigid
what does it mean if a molecule is nonpolar - ANSWER that means that the
majority of the bonds are non polar
is fat polar or non polar? what is it made of? - ANSWER it is non polar and
made of C and H with non polar covalent bonds between them
what happens when there are lots of fat molecules in a glass of water? why? -
ANSWER the fat all comes together, because that means there is less surface
area and more space for the water to go around and hydrogen bond. It also is
more disordered, which is favorable.
what does NMR tell us in general and what does it tell us specifically about the
fat in the water - ANSWER you can use NMR to figure out how mobile water
is. usually it is quite mobile, but in this experiment a small amount of the water
isn't mobile. That is because just around the fat, the water is rigid and ice like
Is a carbon hydrogen bond polar? - ANSWER no
why do the fat molecules all come together? - ANSWER fats are repelled by
water
fats together have a lower surface area
water increases in disorder (more hydrogen bonding partners)
`
monomer - ANSWER a molecule that can be bonded to other identical
molecules to form a polymer.
