Ch 1-3 Overview

central region of an atom that contains protons and neutrons

• molecule

• outer shell
• electron

• nucleus

Molecules that have an unequal distribution of charges

• Ion

• Polar molecules

• Covalent Bond

• Solvent

What is the first step in completing the scientific method?

• Form a hypothesis

• Design a controlled experiment

• Make observations and ask questions

• Draw conclusions

When is a hypothesis created?

• Before making observations and asking questions

• After the experiment is performed

• Before the experiment is performed

• After results are communicated

What are the two kinds of variables that you need to identify in your experiments?

• Independent and dependent

• Independent and manipulated

• Dependent and responding

• We don't need to identify variables

True or False? A scientific theory is "just a theory" and doesn't need to be taken seriously.

• True

• False

What kind of bond is made between monosaccharides?

• Phosphodiester bond

• Ester Linkages

• Glycosidic Linkages

• Glucosidic Linkages

What are the parts of a nucleotide?

• Pentose Sugar

• Phosphate Group

• Nitrogenous Base

• Fatty Acid Tails

What kind of bond is made between fatty acid tails and a glycerol molecule?

• Ester Linkages

• Phosphodiester Bonds

• Glycosidic Linkages

• Peptide Bonds

What is the term for a proposed explanation for a phenomenon, made as a starting point for further investigation?

• Hypothesis

• Theory

• Law

• Observation