1st gp test

Question 1

how does size effect the cell

Answer 1

It’s harder for nutrients and gases to move into the cell.

Question 2

what are the three different domains

Answer 2

bacteria, archaea, eukarya

Question 3

four macromolecules

Answer 3

lipids
proteins
carbohydrates
nucleic acids

Question 4

macromolecules monomers

Answer 4

carbohydrate – monosaccharides
lipids– triglyceride
proteins– amino acid
nucleic acid– polynucleotide

Question 5

monosaccharides

Answer 5

glucose
fructose
galactose

Question 6

disaccharides

Answer 6

sucrose and lactose

Question 7

difference between saturated and unsaturated fats

Answer 7

in saturated fatty acids there are no double bonds between the individual carbon atoms
in unsaturated there is at least one

Question 8

when a protein is denatured

Answer 8

secondary and tertiary structures are altered but the peptide bonds of the primary structures are left in tact
the protein can no longer perform its function

Question 9

carbon chemistry

Answer 9

the use of carbon to bond with itself or other elements in chemical reactions

Question 10

why is carbon important

Answer 10

it can form stable bonds with lots of elements

Question 11

stanley millers 1953 experiment

Answer 11

found out that several organic compounds could be formed spontaneously by simulating the conditions of Earth’s early atmosphere

Question 12

what are valence electron, y r they significant

Answer 12

Valence electrons are those electrons farthest away from the nucleus of an atom. They are important in chemistry because they are responsible for determining the chemical behavior of an atom

Question 13

what are waters properties

Answer 13

polarity, cohesion, adhesion, surface tension, high specific heat, and evaporative cooling. A water molecule is slightly charged on both ends. This is because oxygen is more electronegative than hydrogen.

Question 14

waters bonding properties

Answer 14

bonded by covalent bonds, some hydrogen bonds