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Lisa Marglin
Review Week 1-5
Question | Answer |
---|---|
Often referred to as the “power plant” of the cell, which organelle is the site of ATP production? | mitochondrion |
Which skin layer has cells that look prickly because of the desmosomes that join the cells together? | Stratum spinosum |
Which cells of the skin are filled with a tough, fibrous protein and account for most of the epidermal cells of the skin? | Keratinocytes |
Besides covering our internal organs and tissues, list three functions of skin | Touch, Temperature Regulation and Protection from Bacteria and Viruses |
What are the sublayers of the Epidermis? | From deepest the outermost, these layers are the stratum basale, the stratum spinosum, the stratum granulosum, the stratum lucidum (occurs only in thick skin) and the stratum corneum. |
What layer of dermis is dense irregular connective tissue? | The reticular layer |
What does pH stand for? | power of hydrogen |
What is a force holding two atoms together? | A Chemical Bond |
Define an Element | A substance that cannot be broken down or decomposed into two or more different substances |
What term is used to describe all of the chemical reactions that occur in body cells? | Metabolism |
What is a cell metabolism made of? | protein and sugar chains |
The inside of the cell is composed largely of a gel-like substance ? | cytoplasm |