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Biology Exam 1

1.

Complex carbohydrate found in potatoes

Starch

2.

The structural component of tick exoskeletons

Chitin

3.

A monosaccharide that is a very important source of energy

Glucose

4.

Storage form of glucose found in animal livers

Glycogen

5.

A disaccharide of plant cell walls

Cellulose

6.

The sugar found in beer

Maltose

7.

A monosaccharide isomer of glucose

Fructose

8.

Formed from the dehydration of glucose and fructose

Sucrose

9.

Atom

Smallest unit of matter

10.

Cell

Basic unit of life

11.

Taxonomic Categories

Kingdom, Phylum, Class, Order, Family, Genus, Species

12.

Scientific Method

Observation, Question, Hypothesis, Experiment, Conclusion, Theory, Law

13.

Atomic Number

Number of protons present in an element

14.

Atomic Weight

Sum of protons and neutrons

15.

Ionic Bond

Bond formed when an atom donates an electron to another atom

16.

Non-polar Covalent Bonds

Equal sharing of electrons

17.

Polar Covalent Bonds

Unequal sharing of electrons

18.

Hydrogen Bond

Bond formed when a Hydrogen atom already covalently bonded to a negative atom is attracted to another negative atom

19.

High Specific Heat

Amount of heat needed to raise one gram of a substance by one degree Celsius

20.

High Heat of Vaporization

Amount of heat needed to convert one gram of liquid to a gas

21.

High Heat of Fusion

Amount of energy needed to freeze water

22.

Cohesion

Water sticks to water molecules (Horizontal)

23.

Adhesion

Water sticks to water molecules (Vertical)

24.

Acid

Substance that releases Hydrogen Ions in solution

25.

Basic (Alkaline)

Substance that releases Hydroxide Ions in solution

26.

Salt

Substance that releases cations and ions in solution

27.

Enantiomer

Mirror image isomer

28.

Polymers

Large organic molecules formed by binding many monomers together

29.

Carbohydrates

Contain elements C,H,O and are used for quick energy

30.

Monosaccharides

Glucose, Fructose, Ribose

31.

Disaccharides

Sucrose, Lactose, Maltose also have Glycosidic Linkage

32.

Sucrose

Glucose + Fructose

33.

Lactose

Glucose + Galactose

34.

Maltose

Glucose + Glucose

35.

Polysaccharides

Starch, Glycogen, Cellulose, Chitin

36.

Lipids

Contain C,H,O and store six times more energy than carbs

37.

Triglycerides

Glycerol plus three fatty acid chains

38.

Saturated Fats

Do not have double bonds, Animal Products

39.

Unsaturated Fats

Do have double bonds, Plant Products

40.

Steroids

Lipid, four ring structure

41.

Nucleic Acids

Contains C,H,O,N,P

42.

Purines

two rings, Adenine, Guanine

43.

Pyrimidines

Cytosine, Thymine, Uracil

44.

Proteins

Contains C,H,O,N,S and are the building blocks of amino acids

45.

Amino Acid

Central Carbon and Peptide bond

46.

Primary Structure

Linear chains of Amino Acids

47.

Secondary Structure

Primary chain folds on itself, Alpha Helix, Beta pleated sheet, Hydrogen bonds

48.

Tertiary Structure

Globular

49.

Quaternary Structure

Hemoglobin, Collagen, Aggregate of two or more tertiaries