Chemical basis of life Define the following terms – (0.5 *…

Chemical basis of life Define the following terms – (0.5 * 4 = 2 points) Isotopes Ions Covalent bond Valence electrons Name the four macromolecules. Mention the monomers and polymers for each type. State two functions for each of the four macromolecules ( 3 points) State the difference between saturated and unsaturated triglycerides. Which one of these is solid and which is liquid at room temperature? Name a food source for each type. (1.5 point) Name and give examples of 3 functions of proteins (1.5 points) Write 4 differences between DNA and RNA. (2 points)

Skin Describe how are fingerprints formed and what are they…

Skin Describe how are fingerprints formed and what are they used for. (1 points) Describe the structure and function of arrector pili. (2 points) Briefly describe the steps in Epidermal wound healing (2 points) Deep wound healing (2 points) Describe the structural characteristics of the epidermis that contribute to its ability to protect the surface of an animal. (3 points)