Identify the non-lipid molecule. A. Phospholipids B. Cholesterol C. Steroids D. LactoseE. Triglycerides

Bonus    What chemical property of lipids accounts for their insolubility in water?a. The COOH group of fatty acidsb. The large number of nonpolar C—H bondsc. The branching of saturated fatty acidsd. The C==C bonds found in unsaturated fatty acids

Which organic compound is not only responsible for energy storage, but also can provide thermal insulation?a. lipidsb. proteinsc. nucleic acidsd. carbohydratese. monosaccharides

The main difference between prokaryotic cells and eukaryotic cells is A. prokaryotic cells have more internal, membrane-bound compartments than eukaryotic cells. B. eukaryotic cells have membrane-bound subcellular compartments, called organelles, and prokaryotic cells do not. C. prokaryotic cells have linear DNA and eukaryotic cells have circular DNA. D. prokaryotic cells have a nucleus and eukaryotic cells do not. E. eukaryotic cells contain double-stranded DNA while prokaryotic cells do not

Microfilaments such as actin, microtubules, and the intermediate filaments form the cell-supporting structure called the ______________. A. cytoplasm B. plasma membrane C. cytoskeleton D. centrioles

Bonus   Organs are composed of tissues, which are composed of cells. This is an example of which characteristic of life?A) Living things grow and develop.B) Living things respond to stimuli.C) Living things maintain themselves by homeostasis.D) Living things have levels of hierarchical organization.E) Living things are adapted to the environment.

Which one of the following properties is not a characteristic of all living organisms? a. Maintenance of relatively stable internal conditions b. Adaptation to environmental factors in ways that influence survival c. Production of nutrients by photosynthesis d. Growth and reproduction e. Response to stimuli

Bonus question

A substance that acts as a reservoir for H+ ions, opposing any increase or decrease in concentration, is a(n) _______. A.buffer B.acid C.base D.antacid

What type of bonding is likely to occur between two water molecules or strands of DNA? A. covalent B. ionic C. hydrogen D. both hydrogen and covalent E. both hydrogen and ionic