Chemistry in Biology pt 1

Question 1

Neutrons tend to have this type of charge

Accepted Answer

neutral or no

Question 2

bond with flys & geckos on walls,attraction between 2 different substances @ molecular level

Accepted Answer

van der waals force

Question 3

This is the most important element for life as it serves as the backbone for all life molecules

Accepted Answer

carbon

Question 4

If a Na-3 element has an atomic number of 11 and a mass number of 23, how many e- are there?

Accepted Answer

14

Question 5

If something dissolves easily in water and most likely has an attraction between molecules, its

Accepted Answer

hydrophilic, polar

Question 6

This type of bond is stronger than any others and usually is associated with sharing a electron

Accepted Answer

covalent

Question 7

This is known as a building block for proteins

Accepted Answer

amino acids

Question 8

This is where we get energy and calories from

Accepted Answer

food

Question 9

This is the smallest unit of matter essential for all building blocks for life.

Accepted Answer

the atoms

Question 10

Which element is NOT essential for life?

Accepted Answer

Fl

Question 11

The hydrogen and oxygen in H20 is bonded by_ and neighboring H2O molecules are held by _ bonds

Accepted Answer

polar covalent, hydrogen

Question 12

If a Na element has an atomic number of 11 and a mass number of 23, how many neutrons are there

Accepted Answer

12

Question 13

Which molecule is C6H12O6 that was built as an essential carbohydrate?

Accepted Answer

glucose

Question 14

These are the most important elements for life

Accepted Answer

SPONCH

Question 15

If a Na element has an atomic number of 11 and a mass number of 23, how many protons are there?

Accepted Answer

11

Question 16

This type of charge is associated with an electron, that is found in the outer cloud

Accepted Answer

negative

Question 17

This type of bond tends to have an attraction by borrowing an electron, such as Na+ Cl-.

Accepted Answer

ionic

Question 18

Oil and water tend to never mix because they are

Accepted Answer

non-polar

Question 19

A substance that is a combination of 2 or more elements and has a definite chemical composition

Accepted Answer

compound

Question 20

These are found within the nucleus of an atom.

Accepted Answer

protons, neutrons

Question 21

This type of food lost the most H2O due to evaporation and breaking of molecules to form others

Accepted Answer

cucumber

Question 22

This food tends to have the most water to break molecules into evaporation

Accepted Answer

cucumber

Questions 22