Biochemistry and Biology Curriculum Quiz
Preview:
What is the charge on the oxygen atom in a water molecule?
A. Slightly positive (δ+)
B. Slightly negative (δ-)
C. Neutral
D. Positively charged.
What is the significance of the dipole nature of water?
A. High specific heat capacity
B. Low specific heat capacity
C. Non-polar solvent
D. Low surface tension
Phospholipids form a double-layered structure known as a ________.
A. micelle
B. bilayer
C. monolayer
D. trilayer
What type of bond is formed when two monosaccharides join together to form a disaccharide?
A. Ionic bond
B. Glycosidic bond
C. Hydrogen bond
D. Peptide bond
Fill in the blank: Covalent bonds are represented by ______ lines in chemical structures.
A. Dotted
B. Solid
C. Dashed
D. Wavy
Triglycerides with no C=C double bonds are called ________ fatty acids.
A. Unsaturated
B. Saturated
C. Poly-unsaturated
D. Omega-3
What are triglycerides commonly known as?
A. Proteins
B. Carbohydrates
C. Fats or oils
D. Nucleic acids
Which of the following is a plant storage polysaccharide?
A. Glycogen
B. Cellulose
C. Starch
D. Chitin
Which of the following is a monomer of carbohydrates?
A. Fatty acids
B. Amino acids
C. Monosaccharides
D. Nucleotides
What is one of the primary uses of triglycerides in the body?
A. Energy storage
B. Protein synthesis
C. DNA replication
D. Oxygen transport
Cellulose forms ______ chains due to its β glycosidic bonds.
A. flexible
B. coiled
C. straight
D. branched
Monosaccharides have the general formula (CH2O)n, where n can be 3-7. Which of the following is a pentose sugar?
A. Glucose
B. Fructose
C. Ribose
D. Galactose
Which of the following is a hexose sugar?
A. Ribose
B. Glucose
C. Deoxyribose
D. Ribulose
The secondary structure of proteins is held together by ______.
A. Ionic bonds
B. Covalent bonds
C. Hydrogen bonds
D. Peptide bonds
Fill in the blank: The structure of glucose, starch, glycogen, and cellulose relates to their ______.
A. Function
B. Color
C. Taste
D. Smell
