Chapter 3 - Molecules of Life: Part 1 Flashcards

1
Q

Our food is made up of …

A

Organic molecules.

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2
Q

Macromolecules are …

A

Polymers of large organic molecules made up of smaller building blocks.

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3
Q

What are the Four Types of macromolecules essential to living organisms ?

A

-Carbohydrates
- Lipids
- Proteins
- Nucleic Acids

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4
Q

Carbohydrates are primary _ for cells.

A

Fuel.

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5
Q

Carbohydrates consist of …

A

Carbon, Hydrogen, and Oxygen.

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6
Q

Carbohydrates are COMPOSED of … M

A

Monosacchrides.

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7
Q

Monosaccharides are _ sugars.

A

Simple.

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8
Q

Mono means …

A

One.

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9
Q

C-H bonds store _ amounts of energy.

A

Large.

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10
Q

Glucose provides what to the cells ?

A

Energy.

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11
Q

Blood sugar is _cose, _tose, and _ctose.

A

Glucose, Fructose, and Galactose.

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12
Q

Fructose provides _ for temporary storage.

A

Glycogen.

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13
Q

Galactose provides _for long term energy storage.

A

Fat.

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14
Q

Disaccharides are formed by…

A

the union of two sugars.

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15
Q

Polysaccharides are formed by …

A

the union of multiple sugars.

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16
Q

Are all Carbohydrates digestible by humans?

A

No.

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17
Q

Carbohydrates serve as structural materials for …

A

animals and plants.

18
Q

Are the shell of a lobster ( the chitin) digestible ?

19
Q

Cellulose is digestible.

20
Q

Dietary fibers are not digestible carbohydrates and help clear the …

A

digestive tract

21
Q

Lipids store …

A

Energy for a rainy day.

22
Q

Lipids have more C-H bonds than …

A

Carbohydrates.

23
Q

Lipids are _ in water because they are non-polar.

24
Q

Lipids are _ to the touch.

25
Dietary fats differ in _ of saturation.
degrees.
26
Glycerol is the hydrophilic "_" region.
Head.
27
Fatty acids is the hydrophobic "_" region.
Tails.
28
In Saturated fats each carbon is _ chained to two hydrogen atoms.
Single
29
In Unsaturated fats each carbon _ bond links to carbon atoms.
Double.
30
Trans fat is ...
fatty acids.
31
_ and _ are used to build sex hormones and membranes.
Cholesterol and Phospholipids.
32
An important component of cell membranes in animals are ...
Cholestrol.
33
_ ( containing cholesterol ) can cause hardening of arteries.
Plaque.
34
The MAIN component of a cell membrane is ... P
Phospholipids.
35
Regulating sexual development, maturation, and sex cell production is done by what hormone?
Steroid.
36
Estrogen influences...
Memory and Mood.
37
What stimulates muscle growth ?
Testosterone.
38
Waxes are strongly hydro......
Hydrophobic. They repel water.
39
Waxes coat surface of ...
insects, plants, and feathers.
40
Waxes have one long ...
fatty acid chain.