Anatomy Week 3

Honors Enrichment Questions Week 3 1) What are chemotherapeutic drugs? Research two and explain how they work against cancer. Chemotherapeutic drugs are used during chemotherapy and are a treatment for cancer. Leustatin- used for hairy cell leukemia, chronic lymphocytic leukemia, and non-Hodgkin’s lymphomas. It is an infusion through a vein and it attacks cells at very specific phases in the cycle. Taxol- used for treatment of breast, ovarian, lung, bladder, prostate, melanoma, esophageal, and other types of solid tumor cancers.Attacks cells during certain phases of the process. 2) What is hydrocortisone and when used, how does this reduce cell damage? It is a steroid hormone that is produced by adrenal cortex and used medicinally to treat inflammation resulting from eczema and rheumatism. It helps reduce cell damage because it is a steroid that helps prevent inflammation of cells and tissues. 3) If a molecule comes toward the cell, how is it decided if the molecule will be ta ken in using active or passive transport?Passive transport is moving biochemical and atomic or molecular substances across the cell membrane but unlike active transport it does not involve chemical energy. Active transport is transporting things from a region of lower concentration to higher concentration, and it uses energy. Depending on whether it needs energy and the transports or places that it goes through will depend on whether it will use active or passive. 4) Explain in your own words, the role of DNA and RNA in protein synthesis. The DNA molecule will unwind and unzip as the hydrogen bonds between the break of the bases.RNA nucleotides pair up with the exposed bases of one of the strands and as they pair up with their pairs the sugar phosphate groups are bonded together to form the new molecule called mRNA. 5) How do endocrine and exocrine glands differ in   structure and function? Endocrine glands are ductless glands that diffuse into the blood to be used in the body suc h as the thyroid, adrenal, and pituitary glands while exocrine glands retain their ducts and empty through ducts to the epithelial surface that includes sweat and oil glands, liver, and the pancreas.