Which of the following molecules would you add to skin cells to reduce the chance of skin cancer? Select one: a. Oxygen b. Carotene c. Vitamin D3 d. Carbon dioxide e. Melanin
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- Which of the following is responsiblefor giving colour to human skin?A. Luciferin B. HaemoglobinC. Flavonoids D. MelaninListen to the video about the effects of smoking in our lungs using the link below. https://www.youtube.com/watch?v=69R0E Rg mQ cancer cens basal goblet cells cells mucus cilia SILMAD I (a) normal (b) cancer develops tumour thin mucous layer narrow bronchioles PEN ER (c) cancer advances (d) tumour spreads 5 While the cancerous tumour is still walled in by the basal membrane in diagram C, the tumour breaks through the membrane in diagram D. At this stage, the tumour may spread to other parts of the body. Cancer cells often use lymph vessels as pathways to other parts of the body, where they continue to divide. e) Why does this characteristic make cancer especially dangerous? IBotox is a toxin produced by the bacterium Clostridium botulinum. When ingested with tainted food, Botox can kill by paralyzing muscles needed for breathing and heartbeat. Physicians inject small quantities of diluted Botox into facial muscles to paralyze them and reduce the appearance of wrinkles. Some people have expressed concern about a trend in which people come together for “Botox parties” at hair salons and other nonmedical settings. What are the risks of getting injections in such a setting?
- What is the only statement that correctly identifies the ability of different wavelengths of UV light to penetrate the human skin? Note: UVA is the longest wavelength (least energy), and UVC is the shortest wavelength (most energy). If you've studied the electromagnetic spectrum you may remember that wavelength and energy have an inverse relationship. We'll talk more about this later in the course. Group of answer choices A- UVA light penetrates only as deep as the epidermis, which is where it has its effect B-UVB light penetrates only as deep as the epidermis, which is where it has its effect C-UVC light penetrates only as deep as the epidermis, which is where it has its effectWhich of the following is NOT a structure/function claim? O a. Calcium Builds Strong Bones O b. Fat Free O c. Contains vitamins C and A for improved immunity O d. Helps support healthy hair and skinWhich of the following protein is present in nails and hair or human beings?A. Collagen B. Keratin C. Elastin D. None of the above
- Which of the following statements describes smoothmuscle cells?a. They are resistant to fatigue.b. They have a rapid onset of contractions.c. They cannot exhibit tetanus.d. They primarily use anaerobic metabolism.You are a drug manufacturer looking to mass produce human insulin. Give a step-by-stepprocedure showing how you could create the bacteria that would make this insulin for you. This is a grade 12 question, do not use information that wasnt learned.The type of tissue found on human skin has all these features except A. High power of regeneration B. Highly vascularized C. Has many cell junctions D. Movement of materials is by simple diffusion
- Many connective tissues like cartilage, ligaments, tendons skin dermal layers secrete an extra cellular matrix with a very famous and common protein called A. hemotensin B. collagen C. porphyrin D. petidoglycan 3Anaerobic respiration in muscle tissue results in the formation of Select one: a. pyruvic acid b. carbon dioxide and water c. lactic acid d. ethanol and carbon dioxide O O O O1. How is oxygen organic nutrients reach epithelial cells by a. activation of nearby glands to nourish the epidermis. b.diffusion from blood vessels in the epithelium. c. diffusion from blood vessels in the dermis. d. non of above