semester test

Question 1

what is the monomers of nucleic acid

Answer 1

nucleotide

Question 2

what are complex structures made of monomers

Answer 2

polymers

Question 3

what are the macromolecules used for quick energy

Answer 3

carbs

Question 4

what are the macromolecules that are composed of fatty acids

Answer 4

lipids

Question 5

what are the macromolecules that are composed of fatty acids

Answer 5

lipids

Question 6

what are the abundant macromolecule of a cell

Answer 6

protein

Question 7

an example of sugars and starches is ?

Answer 7

carbs

Question 8

what is the macromolecules used for muscle contraction are ?

Answer 8

proteins

Question 9

a chain of multiple polymers are called

Answer 9

monomers

Question 10

what macromolecules are used during dna replication?

Answer 10

nucleic acid

Question 11

1-sciences advances what?

2-technology advances what?

Answer 11

1 knowledge

2 society

Question 12

the goal of technology in the science world is?

Answer 12

use science to solve problems and answer questions

Question 13

problem identifcation clearly defines what?

Answer 13

the problem

Question 14

determing if you solved a problem/ met all cpnstrains is a form of ?

Answer 14

evaliation

Question 15

what are the common requirments within a solution design stages

Answer 15

time and materials

Question 16

what do scientific investigators identify

Answer 16

a problem

Question 17

what does scientific investigation and technology design and analyze

Answer 17

results

Question 18

what does technological design and evaluates process or products to answer if it met what

Answer 18

the criteria

Question 19

what results are supported or rejected

Answer 19

scientific investigation

Question 20

what paraticle moves around the nucleus of an atom

Answer 20

electrons

Question 21

the atomic number of a carbon atom is 6. so how many nuetrons does the isotope carbon-12 have

Answer 21

6

Question 22

what do the three isotopes of carbon have thats the same number of chemica properties but dont have the same ?

Answer 22

atomic mass

Question 23

what is a chemical compound that consists of 2 or more —— combined in a definite proportion

Answer 23

elements

Question 24

vander wall forces are the result of what what —— sharing electrons

Answer 24

unequal

Question 25

what happens when a covalant bond forms electric bonds are ----- between atoms

Answer 25

shared

Question 26

when isotopes are created by a change in the number of ---------- in atoms

Answer 26

nuetrons

Question 27

atoms are made up of ?

Answer 27

protons/nuetrons.electrons

Question 28

what are the 2 main types of bonds?

Answer 28

covalent and ionic

Question 29

elements or that are produced by a chemical reactions are known as what?

Answer 29

products

Question 30

what dp chemical reactopms always involve a charge in ?

Answer 30

energy

Question 31

what is the energy that is needed to get a reaction started is called what?

Answer 31

activation energy

Question 32

all enzymes are what?

Answer 32

catalyst

Question 33

after a reaction the enzymes are what------- and ready to accecpt molecules

Answer 33

unchanged

Question 34

what speeds up a reactions that take place in cells

Answer 34

enzymes

Question 35

what happens if reacrions dont have enough energy they will be what ------ after the collusion

Answer 35

unchanged

Question 36

enzymes that affect the reactions are called?

Answer 36

reactants

Question 37

what is a substance that acclerates the rate of chemical reactions callled

Answer 37

catlyst

Question 38

enzymes affect the reaction of living cells by changing ------ of a reaction

Answer 38

speed

Question 39

electron microscopes are caple of revealing more details than light microscopes because wavelengths are ------- than light

Answer 39

shorter

Question 40

who was the first person who used dthe term cell

Answer 40

robert hooke

Question 41

one way that prokaryotes differ from eukaryotes is that theu do not have a membrane aroind its what?

Answer 41

dna gentic material

Question 42

what is bacteria an example of ?

Answer 42

prokaryotes