11. All these cells should be removed by apoptosis unless apoptosis control is deranged. Apoptosis is programmed cell death.
12. Melanin is the pigment which is responsible for the colour of skin and hair. Melanocytes are the cells which secrete melanin pigment and thus give hypo and hyper pigmentation.
13. Knowing the annual incidence rate of disease is an important parameter to estimate the prevalence of chronic disease given the same efforts in primary prevention level. Chronic diseases are those which stays for longer period of time.
14.The first statement processes that cells carry in an attempt to maintain homeostasis. Cellular processes that tend to maintain homeostasis indirectly works for cell adaptation
11) Which of these cells are the least likely to be removed by apoptosis? a) Harmful...
answer so i can check my answers when i am finish 33) What accumulates in foamy cells (macrophages)? a) Cholesterol 5) Neutral fat c) Lipofuscin d) Proteins e) Bilirubin 34) Which of the following is a typical product of anaerobic cell metabolism? a) Fatty acids b) Lactic acid CY ATP d) Glycogen e) Cholesterol 35) Choose all the correct answers: Which of the following changes are common to both reversible and irreversible cell injuries? a) Plasma membrane rupture b) Cell...
11. Eukaryotic cells are most likely to have originated when a. climate changes disturbed natural processes b. a supernatural force intervened c. a comet seeded the earth with the new cells d. one (or more) prokaryotic cell(s) took up residence in another 12. Evidence in support of the endosymbiont hypothesis is a. the remarkable similarity between some organelles and modern prokaryotic cells (size, shape, behavior, reproduction, ribosomes, DNA) b. we see this happening occasionally today c. prokaryotic cells were first...
6) Which of the following is NOT a correct association of amphibian pigment cells? A) Melanophores-brown or black pigment B) Xanthophores orange, yellow, and red pigment C) Chromatophores on the top of the epidermis D) Iridophores-silvery light-reflecting pigment E) All of the choices are correct associations 7) Which is true regarding frog skin? A) The dermis contains chromatophores, which provide skin color. B) The epidermis has mucous glands that secrete mucus to waterproof the skin. C) The epidermis contains keratin....
30. Harmful mutations in the mitochondrial genes coding for the electroe transport system would most atfect which of the processes? Choose the best answer A. oxygen diffusion ito red blood cells B. urine flow out of the urethra C. rapid beating of a hummingbirds wings D. formation of the phospholipid bilayer from free phospholipids E. the Calvin cycle CSLO6: AN 31. A specific poison blocks H' transport across the inner membrane of the mitochondria How will this directly affect the...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part of the cell cycle > only some cells ever undergo meiosis During meiosis I, homologous chromosomes line up to allow them to be separated into two new cells o They can become "tangled" during this phase, which leads to crossing-over (rearranging the alleles) O Result of meiosis I is two non-identical haploid cells Meiosis Il looks very similar to mitosis, in that sister chromatids...
16. Which is a true statement regarding and vaccines? a) Antice can any type of microbe b) Microbes cannot becomesitant to antibiotics c) Vaccines only a certain types of microbes d) Vaccines don't microbes instead they boost the immune system e) None of the above /F13 17. Which of the following best describes a species? a) a group of identical organisms b) a group of organisms that can successfully reproduce c) two related groups of organisms d) all organisms that...
explain 1 or 2 molecular details in how epigenetics may allow melanoma cells to outsmart BRAF inhibitors **This is for a genetics course Seope: This science commentary claims that epigeneties plays a role in cancer cells becoming therapy-resistant. The language used is generalized for the non-scientist and does not include any molecular details, such as methylation of a specific nucleotide in an allele or modification of a specific histone tail amino acid. Your task (individually or in a group of...
immunology practing samples and not sure if my answers correct. 1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...
BIOL 1620o, Spring 2019 NAME (Last, Preferred First): Date: 45. What is the most important means by which capillay exchange occurs? 53. Which of the following organs does NOT contain lymphatic tissue? A. liver B. spleen C. lingual tonsils A. exocytosis B. diffusiorn C. ATP powered pumps D. facilitated diffusion E. pharyngeal tonsils. 46.According to Poiseuille's law A. blood flow is not related to resistance. B. ph of the blood influences flow C. viscosity of the blood is not related...
1.The spontaneity of system or a biochemical reaction can be determined by: A) Enthalpy alone B) Entropy alone C) Gibbs Free energy D) Temperature and heat 2.A reaction in equilibrium where both forward and reverse reactions are proceeding equally, will have a DELTA G value of: A) Positive B) Zero C) Negative 3.A reaction was originally endergonic, but became exergonic after reducing the temperature. Therefore, this reaction originally had __________ deltaH and a ______ delta S. A) small positive, large...