FREE BIOLOGY AND STUDY GAMES ABOUT SECOND

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FREE BIOLOGY AND STUDY GAMES ABOUT SECOND

TESTT EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -77 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: ____ and ____ are two examples of structural isomers with different properties

Answer:

propanal and acetone

Question 2: ____ are polymers that are built from monomers

Answer:

macromolecules Question 3: groups of atoms attached to the carbon skeleton of organic molecules

Answer:

functional side groups

Question 4: organic molecules made of sugars and their polymers. consists of

monosaccharides, disaccharides, and polysaccharides

Answer:

carbohydrates

Question 5: a polymer composed of glucose monomers, but the glycosidic linkages are different because there are 2 different ring forms of glucose

Answer:

structural polysaccharides Question 6: molecules which contain the same atoms but the groups around a double bond are arranged differently; same formula, same connections, different arrangement in space

Answer:

geometric isomers Question 7: macromolecules that are polymers of a few hundred or thousand monosaccharides.

Answer:

polysaccharides Question 8: a glucose polymer that is used as a storage polysaccharide in plants

Answer:

starch Question 9: non-polar(electrons shared equally);the arrangement of this in sex hormones can also affect their shape and function

Answer:

methyl group Question 10: monomers of simple sugars; carbohydrates contain hydrogen, carbon, and oxygen-combined in a 1:2:1 ratio; ex: glucose (C6H12O6); the simplest forms of carbohydrates

Answer:

monosaccharides Question 11: polar; called acids because they donate protons whereas bases accept protons; takes a -1 charge upon losing the H+ ion

Answer:

carboxyl group

Question 12: process by which athletes are able to double or triple the amount of glycogen stored in their muscles. used to delay the onset of muscle fatigue. a 2 phase process

Answer:

carb-loading Question 13: a small number of ____ are key to the functioning of biological molecules

Answer:

chemical groups Question 14: compounds such as glycine have both a carboxyl group and an amine group, and is called ______.

Answer:

an amino acid

Question 15: functional groups affect 3 things...

Answer:

1.physical characteristics of the molecule (size and shape)

• chemical behavior (regions of molecule most commonly involved in chemical reactions)

• chemical behavior of each type of functional groups is fairly consistent in all organic molecules

Question 16: biological functions: energy storage(starch and glycogen), structural support(cellulose and chitin)

Answer:

polysaccharides

Question 17: a disaccharide made up of glucose and fructose.

Answer:

sucrose

Question 18: _____ adds water molecules, breaking a bond.

Answer:

hydrolysis

Question 19: carboxyl

Answer:

-COOH

Question 20: ____ hold the cellulose strands together.

Answer:

hydrogen bonds Question 21: consists of 2 monosaccharides joined covalently during a dehydration reaction; ex: maltose(used to produce beer), sucrose(table sugar), and lactose( a sugar found in milk).

Answer:

disaccharides Question 22: drug used to treat morning sickness in the 1950s. it caused multiple defects.

Answer:

thalidomide

Question 23: ____ are molecules that contain only hydrogen and carbon.

Answer:

hydrocarbons Question 24: ____ is a major cellular energy source, so plants form starch as a source of cellular glucose.

Answer:

glucose

Question 25: carbonyl

Answer:

-C=O

Question 26: amino

Answer:

-NH2