unit 1 the nature of life

Question 1

I can identify the 3 subatomic particles found in atoms 2.1.1

Answer 1

protons neutrons and electrons

Question 2

I cal explain the 2 main types of chemical bonds 2.1.4

Answer 2

ionic bonds and covalent

Question 3

i can explain how all the isotopes of an element are similar and how they are different 2.1.2

Answer 3

Because they all have the same number of electrons all isotopes of an element have the same chemical properties

Question 4

How does the structure of water contribute to its unique properties 2.2.1

Answer 4

because water is a polar molecule it is able to form maney bonds

Question 5

What element does carbon bond with to make up life’s molecules 2.3.1

Answer 5

hydrogen, oxygen, phosphorus, sulfur, nitrogen

Question 6

what are the functions of each of the 4 groups of macromolecules 2.3.2

Answer 6

carbohydrates, proteins, lipids, and nucleic acids

Question 7

What happens to chemical bonds during chemical reactions 2.4.1.

Answer 7

chemical reactions make change in the chemical bonds that joins atoms in compound

Question 8

How do enegery affect whether a chemical reaction will occur 2.4.2

Answer 8

this happens spontaneously

Question 9

Why are enzymes important to living tings 2.4.2

Answer 9

they speed up the chemical reaction in cells

Question 10

I can diffemiate compounds from their component element 2.1.3

Answer 10

the physical and chemical property are very different

Question 11

whats the difference between solutions and suspensions 2.2.2

Answer 11

all of the components of a solution are evenly disturbed throughout the solution. all the mixes of things ae called suspension

Question 12

I can identify key events in history of bio

Answer 12

the black box the micrope amino acids)

Question 13

atoms

Answer 13

the basic unit of a chemical element