GEN BIO Q2| 2 Flashcards

1
Q

the cells of all living things are made up mainly of four elements

A

carbon
hydrogen
oxygen
nitrogen

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2
Q

major components or major biological molecules of the cell membrane

A

lipids: phospholipids, cholesterol, & glycolipids
proteins
carbohydrates

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3
Q

refers to the organic molecules present in living organisms

A

biological molecule

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3
Q

four major classes of biological molecules

A

carbohydrates
lipids
proteins
nucleic acids

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4
Q

large biological molecules

A

macromolecules

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5
Q

types of carbohydrates

A

monosaccharides
disaccharides
polysaccharides

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5
Q

are the sugars, fibers, and starches found in fruits, vegetables, and dairy products. It is made up mainly of carbon, hydrogen, and oxygen.

A

carbohydrates

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6
Q

carbohydrates provide energy through the body through ________

A

glucose

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7
Q

it is the most important element because of its ability to easily form bonds with other elements

A

carbon

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7
Q

are composed only of 3 to 7 carbon units - one sugar unit

A

monosaccharides

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7
Q

they are colorless and water-soluble sugars and cannot be hydrolyzed to form simpler sugars.

A

monosaccharides

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8
Q

provide the cell the immediate energy supply it needs

A

simple sugars

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8
Q

when two monosaccharides join together and a molecule of water is removed. They are also water-soluble.

A

disaccharides

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9
Q

the most common example of a disaccharide is ___________. It is a combined glucose and fructose.

A

sucrose

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10
Q

are long chains of monosaccharides.

A

polysaccharides

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11
Q

digestible polysaccharides are broken down to _________ for the body.

A

provide energy

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12
Q

a digestible polysaccharide composed of glucose.

A

starch

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13
Q

are molecules built from fatty acids that are bonded to a variety of compounds. This group includes fats, oilsm and some steroids.

A

lipids

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14
Q

These are molecules are mostly hydrophobic and are water-insoluble

A

lipids

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14
Q

these are the basic component of the cell membrane and membranes of organelles

A

lipids

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15
Q

in the form of fat molecules, they serve as energy storage and provide heat insulation for the organism.

A

lipids

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16
Q

are fundamental constituents of life processes.

A

proteins

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16
Q

_________, a group of lipids, are also involved in cell to cell communication

A

steroids

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16
Q

these are made of long chains of amino acids that perform various functions depending on the combination and sequence of the amino acids.

A

proteins

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17
directly related to the to the structure of the protein
protein function
18
are organic molecules made from carbon, hydrogen, oxygen, and nitrogen.
amino acids
19
some of the common protein functions
enzymes hormones transport antibodies
20
protect the body from foreign pathogens
antibodies
20
act as catalyst in biochemical reactions
enzymes
21
control the physiological processes of an organism
hydrogen
22
carry substances throughout the body
transport
23
are molecules that allow the transfer of genetic information between organisms from one generation to another
nucleic acids
23
are molecules that are made of nucleotide manners
nucleic acids
24
two types of nucleic acids are:
deoxyribonucleic acids (DNA) ribonucleic acids (RNA)
24
the process where proteins that facilitate chemical reactions by enhancing the speed of which the reaction takes place.
catalysts
25
these supplements are meant to improve the condition of digestive enzymes which are responsible for converting the food into nutrients needed by the body.
digestive enzyme supplements
26
these are proteins that facilitate chemical reactions by enhancing the speed of which the reaction takes place.
enzymes
27
enzymes, carry out reactions between biomolecules without being used up. They are commonly known as
biological catalysts
28
_______, like all proteins, are made up of amino acids linked in its own sequences
enzymes
29
the linkage of amino acids into polypeptide chains
primary structure (enzyme)
30
increases the speed of chemical reaction without being consumed
catalysts
31
when the amino acids interact with each and fold two ways
secondary structure (enzyme)
32
the enzymes final 3D structure
tertiary structure
32
this is the folding of the secondary structure which creates the complex shapes and compartments of an enzyme
tertiary structure
32
this is the folding of the secondary structure which creates the complex shapes and compartments of an enzyme. THE COMPARTMENTS are called..
active sites
32
it is a double helix molecule that contains instructions for the performance of all cells as well as the genetic information of an organism
DNA
33
it is a single helix molecule. It is the nucleic acid that's responsible for transferring the information between DNAs
RNA
34
are the region where biomolecules undergo chemical reactions
active sites
35
an enzyme's active site is highly specific to a particular target, this target is called
substrate
36
the substrate binds to the active site and is then converted into ________
products
37
enzymes may require some assistance when catalyzing larger molecules.
enzyme partners
38
if an enzyme is incapable of catalyzing a reaction on its own, it is called an ___________ enzyme or an _________
inactive enzyme or apoenzyme
38
are nonprotein molecules that bind to the enzyme and aids in the transformation of biomolecules
cofactors
38
two types of cofactors
coenzymes prosthetic groups
38
the helpers needed to activate the enzyme that is inactive are called________
cofactors
39
are organic molecules that bind loosely to enzymes
coenzymes
39
the result when the apoenzyme and cofactor are combineden a cofactor is attached to an apoenzyme
holoenzyme
40
are cofactors that bind tightly to enzymes. They can be organic or inorganic molecules
prosthetic groups
40
they also serve as shuttles for substrates from one enzyme to another
coenzymes
40
six classes of enzymes and its reactions
oxidoreductase transferase hydrolase lyase isomerase ligase
41
involves in oxidation processes
oxidoreductase
42
transports functional groups
transferase
43
combines a pair of substrates or reactants
ligase
43
catalyzes transfer of water molecules
hydrolase
44
promotes structural shifts in a molecule
isomerase
45
breaks chemical bonds from a substrate
lyase
46
factors affecting the enzyme activity
temperature ph substrate concentration
47
how enzymes work:
1. Reaction Mechanism 2. Molecular Geometry 3. Energy Changes
48
an enzyme-catalyzed reaction occurs when a _____________ to the _________________. This substrate has a _____________________ with the active site and is then converted into products. It is an ezymes job to ____________________ needed to convert the molecules in order to have a _____________________
substrate attaches enzyme's active site complementary shape reduce the energy faster reaction
49
an ezymes optimum temperature is usually between ______________
40°C - 45°C
50
as the temperature increases, ____________ between the enzyme and the substrates are ______________ because of the increase in kinetic energy
collision more frequent
51
once the temperature reaches the enzymes optimal temp, the enzymes activity will start to _______________________.
decrease over time
52
usually occurs when the hydrogen bonds are broken and the enzyme loses its shape
denaturation
53
enzymes at lower temperatures are considered ___________. They______________ and therefore collisions with substrates are __________.
inactive move a lot slower low
53
an ezyme is made up of amino acids. These amino acids have charges which are affected by the change in ___________ or the _________________.
pH presence of Hydrogen ions
53
an increase in substrate concentration will _______________________________ since more molecules can bind to the enzyme's active site.
increase the enzymes activity
54