FREE BIOLOGY AND STUDY GAMES ABOUT BIO 101

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FREE BIOLOGY AND STUDY GAMES ABOUT BIO 101

CHAPTERS 1-4 EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -74 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Carbon is the

Answer:

backbone of biological molecules

Question 2: Solution

Answer:

A completely homogeneous liquid mixture

Question 3: Experimental Controls

Answer:

Positive (already known to give a result or show some effect

Example: Uncoverd Soup)

Negative: already known NOT to give any result or effect (e.g., sealed soup)

Question 4: Proton

Answer:

positive charge, mass = 1 amu/DA

Question 5: Atomic #

Answer:

number of protons

Question 6: Observation

Answer:

Information obtained through the senses.

Question 7: 96% of biomass is made out of

Answer:

Oxygen, Carbon, Hydrogen and Nitrogen

Question 8: independent variable

Answer:

variable that is manipulated

Question 9: Verification

Answer:

confirmation that the results are good

Question 10: Science

Answer:

is a PROCESS and the knowledge collected through that process!

Question 11: Compound

Answer:

two or more different elements chemically combined, in a fixed ratio, into a new substance with new properties.

Question 12: Functional Groups

Answer:

a group of atoms, commonly appearing together, that convey certain properties and participate in chemical reactions

Question 13: Kingdom Plantae

Answer:

plants like moss, ferns, woody and non-woody plants

Question 14: Hydroxyl (OH)

Answer:

Compund: Alcohol

Example: Ethanol

Properties: Polar, water-attracting

Question 15: Weak Chemical Bonds

Answer:

Weak bonds occur when the attraction between two molecules is weak and transient,

These are not true "bonds",

These bonds can be easily broken without changing the chemical nature of the molecule or compound

Example: Hydrogen Bonding

Question 16: Theory

Answer:

broad explanations that incorporate many hypotheses/laws from different lines of evidence or fields

Example: Cell Theory and Theory of Natural Selection

Question 17: Four central properties of water that allow life:

Answer:

Cohesion

Moderation of Temperature

Ice Floats!

Polar Solvent

Question 18: Experimentation

Answer:

Testing if an idea is wrong or right Question 19: The six most important in biology:

Answer:

Hydroxyl... (OH) [this is NOT hydroxide (OH-)]

Carbonyl (CO)

Carboxyl (CO2H)

Amino (NH2)

Sulfhydryl (SH)

Phosphate (PO4)

Question 20: Polar

Answer:

electrons are NOT shared equally

Question 21: Law

Answer:

describes a mathematical relationship

Example: Boyle's Law and Ideal Gas Law

Question 22: Structural

Answer:

Different covalent arrangement of atoms in space