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BIOCHEMISTRY > Introduction to Biochemistry > Flashcards

Introduction to Biochemistry Flashcards

1
Q

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

A

Biochemistry

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2
Q

the chemical formula of Ethane

A

C2H6

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3
Q

Needs vital force

A

Vitalism

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4
Q

Vitalism needs ___

A

vital force

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5
Q

Year when urea was able to produce in a lab setting

A

1720

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6
Q

Organic Molecule

A

Contains Carbon and Hydrogen

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7
Q

happens naturally

A

Organic

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8
Q

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

A

Organic Molecule

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9
Q

metal and non-metal

A

Ionic bond

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10
Q

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

A

Ionic bond

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11
Q

The attraction of opposite ion

A

Ionic bond

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12
Q

between 2 non-metals

A

Covalent bond

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13
Q

electrons are shared between two atom

A

Covalent bond

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14
Q

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

A

electron

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15
Q

the binding capacity of 4 electrons

A

Carbon

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16
Q

group of atoms that give molecules its properties

A

Functional group

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17
Q

it helps us to identify the molecule

A

Functional group

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18
Q
  • atoms and electrons are arranged symmetrically

* insoluble in water

A

Non polar molecule

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19
Q
  • asymmetrical arrangement of atoms and unequal sharing of electrons
  • water soluble
A

Polar molecule

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20
Q

has a partially positive end and partially negative (dipoles)

A

Polar molecule

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21
Q

Forces of electrostatic attraction within a molecule

A

Intramolecular forces

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22
Q
  • holds the molecule together

* must be broken by chemical means

A

Intramolecular forces

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23
Q

Forces of electrostatic attraction between a molecule

A

Intermolecular forces

24
Q
  • weaker than intramolecular forces

* can be affected by physical change

A

Intermolecular forces

25
Q

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

A

London dispersion forces

26
Q
  • There is a repel towards the electrons (the same charge = repel)
  • There is a force that acts to attract electrons towards the nucleus
A

Van der Waals Forces

27
Q

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

A

London dispersion forces

28
Q

• Occur between polar molecules

A

Dipole - dipole Forces

29
Q

• Stronger than London forces

A

Dipole - dipole Forces

30
Q

negative dipoles are _____ to positive dipoles

A

attracted

31
Q

A type of dipole - dipole interaction

A

Hydrogen bonding

32
Q

Strongest of the intermolecular forces

A

Hydrogen bonding

33
Q
  • Water loving

* Dissolve in water

A

Hydrophilic molecule

34
Q

Attracted to non-polar molecules

A

Hydrophobic molecules

35
Q
  • “Water fearing”

* Repelled by water

A

Hydrophobic molecules

36
Q

Water molecules stick to one another

A

Cohesion

37
Q

In Cohesion, water molecules stick to ______

A

one another

38
Q

Water stick to other polar molecules

A

Adhesion

39
Q

In Adhesion, water molecules stick to ______

A

other polar molecules

40
Q

lead to increase surface tension

A

Cohesion

41
Q

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

A

Capillarity

42
Q

Many substances can be dissolved in water compared with other liquid

A

Universal solvent

43
Q

A molecule that dissolves in water

A

Polar Molecule

44
Q

A molecule that does not dissolve in water

A

Non-polar Molecule

45
Q

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

A

High heat capacity

46
Q

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

A

heat - cooler

47
Q

due to the hydrogen bonding

A

High heat capacity

48
Q

Advantage of high heat capacity

A

aquatic organisms

49
Q

It allows light to pass through

A

Transparency

50
Q

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

A

Ice floats

51
Q

Can act as an acid or base depending on the environment

A

Water is amphiprotic

52
Q

Biochemistry deals with chemical processes that take place ____

A

inside living organisms

53
Q

the chemical formula of Ethyne

A

C2H2

54
Q

the chemical formula of Ethene

A

C2H4

55
Q

the chemical formula of Methane

A

CH4

BIOCHEMISTRY (5 decks)

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