PROTEINS Flashcards

BIO

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1
Q

how does olestra affect nutrient absorption

A

Olestra interacts with fat-loving (lipophilic) compounds in a way that affects fat absorption in the body. Normally, during digestion, fats and fat-soluble nutrients (like beta-carotene) are combined into tiny droplets called micelles, which help them get absorbed into the bloodstream. When olestra is present, it can grab onto these fat-soluble nutrients instead of allowing them to join the micelles. As a result, those nutrients might end up being excreted from the body along with the non-absorbed olestra, leading to lower absorption of important nutrients.

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2
Q

The polymer to the monomer
Proteins
Carbohydrates
Lipids
Nucleic Acids

A

Carbohydrates - Monosaccharides
Lipids - Fatty acids + glycerol
Proteins - Amino Acids
Nucleic Acids - Nucleotides

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3
Q

Dehydration Synthesis (Condensation Reaction)

A

Two subunits link together through the removal of a water molecule.

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4
Q

Hydrolysis Reaction

A

Two subunits break apart through the addition of a water molecule.

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5
Q

Function of Carbohydrates

A

Used for energy, building materials and as surface markers for cell identification and communication.
Energy storage AND structural elements in cells and tissues.

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6
Q

Two functional groups in the straight chain form of glucose

A
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7
Q

Identify the numerous functions of carbohydrates.

A
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8
Q

disaccharides

A

Disaccharides are double-sugar molecules joined with a glycosidic bond. (a condensation rxn)

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9
Q

Disaccharide

A

They are used as energy sources and as building blocks for larger molecules.Disaccharides provide a convenient way to transport glucose.

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10
Q

what is the relationship between proteins and DNA

A

The genetic info in DNA codes for producing specific proteins
These proteins then go on to accomplish all life processes

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11
Q

Functions of Proteins

A

Protein Carriers
Enzymes
Immunoglobin
Structural

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12
Q

What does the R group determine

A

the properties of the protein and the amino acid

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13
Q

Polar amino acids

A

serine
threonine
cysteine
tryosine
asparagine
glutamine

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14
Q

The bonds that hold amino acids together are called

A

Peptide

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15
Q

Peptide bonds are formed by

A

dehydration synthesis

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16
Q

What is a globular protein

A

A globular protein is composed of one or more polypeptide chains that take a spherical, rounded shape

17
Q

Secondary structure

A
18
Q

The sequence of amino acids is determined by

A

the nucleotide sequence in a particular gene

19
Q

What forces are between non polar groups

A

LDF forces