Chapter 5 Flashcards

1
Q

Macro nutrients a only______ built from______

A

Polymers, monomers

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2
Q

Large carbohydrates are also called

A

Polysaccharides

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3
Q

List some polymers

A

Polysaccharides, proteins and nucleic acids

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4
Q

Polymers ar chains of

A

Monomers

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5
Q

How do monomers form larger molecules

A

By dehydration reactions where water Molecules are released

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6
Q

How can polymer disassemble

A

Through hydrolysis

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7
Q

Tor F: polymers can be built from a small set of monomers

A

True

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8
Q

Dehydration reaction

A

When two molecules that have a hydroxyl group or . hydrogen bond join together and release water

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9
Q

Hydrolysis

A

When a large molecule & water produce 2 smaller molecules, water is consumed

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10
Q

Monosaccharides functions and example

A

*Functions:Fuel, carbon sources that can beconverted to other molecules or combined into polymers
*ex) glucose, fructose
*polysaccharides: cellulose(plants), starch(plants), glycogen(animals), chitin(animals and fungi)

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11
Q

Cellulose purpose

A

Strengthens plant cell walls

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12
Q

Starch purpose

A

Stores glucose for energy in plants

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13
Q

Glycogen

A

Stores glucose for energy in animals

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14
Q

Chitin purpose

A

Strengthens animal exoskeleton and fungal cell walls

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15
Q

Lipids are

A

Hydrophobic

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16
Q

Components of lipids

A

Glycerol, phospholipids and steroids

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17
Q

Lipid membranes have

A

Hydrophilic heads that are made of glycerol and hydrophobic tails made of fatty acid chains

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18
Q

Lipid function s

A

Energy source, component of cell membranes

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19
Q

Polymers of carbohydrates

A

Disaccharide, oligosaccharide,polysaccharide

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20
Q

Functions of protein

A

Catalyze chemical reactions,
Protect against disease, store amino acids, transport substances, function in cell movement, provide structural support

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21
Q

Why dues protein have great diversity

A

Proteins have polypeptides that consist of hundreds of amino aced structures The order of amino acid chain which causes different properties and structures

22
Q

Nucleic acids functions

A

Store, transmit and help express hereditary info
Carries instructions from DNA to Ribosomes

23
Q

Complementary base pairing role on nuclei acids

A

Pairing that occurs in nuclei acids to process the formation of other strands

24
Q

The more closely two species are related the…

A

More similar their DNA sequences are

25
DNA sequences confirm
Evolution based on fossils and anatomical evidence
26
Anti-parallel.
Referring to the sugar-phosphatebuckbone of DNA in the table helix they ronin opposite 5' > 3'direction from each other
27
What holds the 2 strands together in a double helix
Hydrogen bonds
28
Adenine always pairs with
Thymine
29
Guanine always pairs with……
Cytosine
30
Know now to find/read the complement as
31
Poly nucleotides are joined together by
Phosphodiester linkage (links the sugars of 2 nucleotides)
32
Nucleotide
A molecule containing a nitrogenous base, a pentose sugar and a phosphate grip
33
Rn/t differs from DNA in that it contains the nitrogen base
Uracil
34
DNA contains The sugar
Deoxyribose
35
Adenine and guaninereleung to a category of nitrogenous bases called……
Purines
36
DNA, RNA, and phospholipids all contain what element?
Phosphorus
37
Disease associated with misfolded proteins
Cystic-fibrosis, Alzheimer's, Parkinson's
38
Primary structure
The linear chain of amino acids forming a polypeptide
39
Amino acids and proteins are joined together by
Peptide bonds
40
Secondary structure
Localized regions ot protein interactions
41
What can cause a protein to denature
Adding heat, adding a chemical thatdismantles hydrogen bonds , changing ph
42
Polypeptide
A chain of amino acids linked togetherby dehydration reactions
43
A fatty acid is joined to a glycerol molecule by
Ester linkage
44
Cholesterol
A steroid that is common component of cell membranes and a precursor to many Other steroids
45
Cell membranes are made up of lipids called
Phospholipids
46
Unsaturated fatty acid
Has one or more carbon-carbon double bonds and is unsaturated because fewer than the max number in hydrogens are connected to the carbons
47
What is an insoluble fiber example
Cellulose because it has glycosidic linkages that are different
48
Glycosidic linkage
Bonds monosaccharides and poly saacchrides
49
What is the primary role of carbs in the body
Energy storage and energy release
50
Glycogen
Used to store surplus glucose energy in the liverand muscle calls of vertebrates