Bio and Chem review

List the four most common elements in the human body in order of abundance.

• Carbohydrates, Nucleic Acids, Proteins, Triglycerides

• Oxygen, Carbon, Hydrogen, Nitrogen

• Calcium, Phosphorus, Potassium, Sulfur

• Sodium, Chlorine, Magnesium, Iron

Which of the following is NOT one of the four groups of organic compounds?

• Carbohydrates

• Proteins

• Nucleic Acids

• Triglycerides

Which of the following statements about water is NOT correct?

• Water does not change temperature easily.

• It is an excellent solvent because it is a polar molecule.

• Water is an organic compound.

• It can be a protective cushion for some body structures.

Which of the following statements about lipids is NOT true?

• Triglycerides may be saturated or unsaturated.

• Phospholipids are an important energy source.

• Steroids are a component of cell membranes and some hormones.

• Lipids are insoluble in water.

Which of the following is NOT an example of a carbohydrate?

• sugars

• monosaccharides

• polysaccharides

• triglycerides

Which of the following statements about DNA is NOT true?

• DNA is an important energy source for the body.

• It provides instructions for building proteins.

• It is a nucleic acid.

• DNA stands for deoxyribonucleic acid.

What type of bond is formed by a transfer of electrons?

• Ionic Bond

• Nucleus

• Amino Acids

• Covalent Bond

What conducts an electrical charge in solution?

• Ionic Bond

• Electrolytes

• Amino Acid

• Covalent Bond

What is a modified nucleic acid that provides energy for cellular work?

• Nucleus

• MFA

• ATP

• Covalent Bond

What are carbon-based compounds called?

• organic

• amino acids

• enzymes

• interstitial