Introduction to Biochemistry

Question 1

Chemistry that deals with chemical processes that take place inside living organisms

Answer 1

Biochemistry

Question 2

the chemical formula of Ethane

Answer 2

C2H6

Question 3

Needs vital force

Answer 3

Vitalism

Question 4

Vitalism needs ___

Answer 4

vital force

Question 5

Year when urea was able to produce in a lab setting

Answer 5

1720

Question 6

Organic Molecule

Answer 6

Contains Carbon and Hydrogen

Question 7

happens naturally

Answer 7

Organic

Question 8

Carbohydrates, Lipids, Proteins, and Nucleic Acids is an example of?

Answer 8

Organic Molecule

Question 9

metal and non-metal

Answer 9

Ionic bond

Question 10

a positively charged ion forms a bond with negatively charged ions and one atom transfers electrons to another

Answer 10

Ionic bond

Question 11

The attraction of opposite ion

Answer 11

Ionic bond

Question 12

between 2 non-metals

Answer 12

Covalent bond

Question 13

electrons are shared between two atom

Answer 13

Covalent bond

Question 14

in order for it to become stable gas, it needs to share ____

Answer 14

electron

Question 15

the binding capacity of 4 electrons

Answer 15

Carbon

Question 16

group of atoms that give molecules its properties

Answer 16

Functional group

Question 17

it helps us to identify the molecule

Answer 17

Functional group

Question 18

• atoms and electrons are arranged symmetrically

* insoluble in water

Answer 18

Non polar molecule

Question 19

• asymmetrical arrangement of atoms and unequal sharing of electrons
• water soluble

Answer 19

Polar molecule

Question 20

has a partially positive end and partially negative (dipoles)

Answer 20

Polar molecule

Question 21

Forces of electrostatic attraction within a molecule

Answer 21

Intramolecular forces

Question 22

• holds the molecule together

* must be broken by chemical means

Answer 22

Intramolecular forces

Question 23

Forces of electrostatic attraction between a molecule

Answer 23

Intermolecular forces

Question 24

• weaker than intramolecular forces

* can be affected by physical change

Answer 24

Intermolecular forces

Question 25

The electrons of one molecule are attracted to the nuclei of the neighboring molecules

Answer 25

London dispersion forces

Question 26

* There is a repel towards the electrons (the same charge = repel) * There is a force that acts to attract electrons towards the nucleus

Answer 26

Van der Waals Forces

Question 27

• The only force used to hold non-polar molecules together

Answer 27

London dispersion forces

Question 28

• Occur between polar molecules

Answer 28

Dipole - dipole Forces

Question 29

• Stronger than London forces

Answer 29

Dipole - dipole Forces

Question 30

negative dipoles are _____ to positive dipoles

Answer 30

attracted

Question 31

A type of dipole - dipole interaction

Answer 31

Hydrogen bonding

Question 32

Strongest of the intermolecular forces

Answer 32

Hydrogen bonding

Question 33

* Water loving | * Dissolve in water

Answer 33

Hydrophilic molecule

Question 34

Attracted to non-polar molecules

Answer 34

Hydrophobic molecules

Question 35

* “Water fearing” | * Repelled by water

Answer 35

Hydrophobic molecules

Question 36

Water molecules stick to one another

Answer 36

Cohesion

Question 37

In Cohesion, water molecules stick to ______

Answer 37

one another

Question 38

Water stick to other polar molecules

Answer 38

Adhesion

Question 39

In Adhesion, water molecules stick to ______

Answer 39

other polar molecules

Question 40

lead to increase surface tension

Answer 40

Cohesion

Question 41

Water Molecules tend to adhere to the glass tube in lifting the water level which is evident at ________

Answer 41

Capillarity

Question 42

Many substances can be dissolved in water compared with other liquid

Answer 42

Universal solvent

Question 43

A molecule that dissolves in water

Answer 43

Polar Molecule

Question 44

A molecule that does not dissolve in water

Answer 44

Non-polar Molecule

Question 45

absorb a lot of heat before the temperature rise to 1 degree Celsius & must lose a lot of heat to become cooler

Answer 45

High heat capacity

Question 46

High heat capacity must lose a lot of _____ to become _____

Answer 46

heat - cooler

Question 47

due to the hydrogen bonding

Answer 47

High heat capacity

Question 48

Advantage of high heat capacity

Answer 48

aquatic organisms

Question 49

It allows light to pass through

Answer 49

Transparency

Question 50

Ice has a very open structure that allows it to float on top of the water

Answer 50

Ice floats

Question 51

Can act as an acid or base depending on the environment

Answer 51

Water is amphiprotic

Question 52

Biochemistry deals with chemical processes that take place ____

Answer 52

inside living organisms

Question 53

the chemical formula of Ethyne

Answer 53

C2H2

Question 54

the chemical formula of Ethene

Answer 54

C2H4

Question 55

the chemical formula of Methane

Answer 55

CH4