★ Trichology Quiz
Which of the following helps protect the hair and skin from becoming too dry?
A. sebum
B. hair fiber
C. protofibrils
D. primitive hair germ
Select your answer:

Topics:
Cancer & Cell Cycle Stimuli and Responses in Humans Ecology & Organisms Pulmonology/Respiratory Meiosis and intro to Genetics Radiation and Health Patho_Genetics DNA and RNA Structures Homeostasis Vital Signs Effects of Exercise on the Musculoskeletal System Health - Nutrition Renal Pharmacology Molecular Genetics Integrated Science Carbohydrates / Fat-soluble VitaminsOther quiz:
Cellular Transport and Metabolism › ViewWhat is facilitated diffusion?
A. Movement of molecules against their concentration gradient with the help of energy
B. Movement of molecules from low to high concentration without energy
C. Movement of molecules from high to low concentration through a protein channel without energy
D. The process by which cells engulf large particles
Macromolecules & Enzymes › View
What is the optimal pH of enzyme A?
A. 8
B. 2
C. 5.7-10
D. 10