Description : Cytotoxic T cells release which 2 toxic proteins as they fight target cells? a. histamine and heparin b. perforin and granzymes c. interleukin and interferon d. lysozymes and cytokines
Last Answer : b. perforin and granzymes
Description : A _____ is a protein receptor on the surface of macrophages, dendritic cells, and endothelial cells that allow them to recognize foreign cell markers. a. Toll-like receptor (TLR) b. pathogen-associated c. Membrane attack complex (MAC) d. Natural killer cells (NK)
Last Answer : b. pathogen-associated
Description : ________ bind to_________ on microbial invaders. a. Toll-like receptors; PAM Ps b. Mast cells; histamine c. Toll-like receptors; complement d. Macrophages; defensins
Last Answer : a. Toll-like receptors; PAM Ps
Description : Performs and granzymes are found in a. Helper T cells. b. Antigen-presenting cells. c. Cytotoxic T cells. d. B cells.
Last Answer : c. Cytotoxic T cells.
Description : All forms of immunity depend on an exposure to antigens and a subsequent response by _____ cells. a. basophil b. neutrophil c. NK d. T
Last Answer : d. T
Description : _____ cells have antibodies on their surface that perform receptor functions by binding to antigen (epitope). a. T b. B c. NK d. A-C are correct
Last Answer : b. B
Description : Which of the following is NOT a lymphocyte? a. B-cells b. T-cell c. NK cells d. Basophils
Last Answer : d. Basophils
Description : To activate a bound helper T lymphocyte, the macrophage produces a. Interleukin-1 (IL-1) b. granzymes c. Interferon
Last Answer : a. Interleukin-1 (IL-1)
Description : An essential element of all allergy reactions is the a. Release of interferons from tissue cells. b. Accumulation of ige on the surfaces of mast cells and basophils. c. Passage of igg from the immune system to local tissue cells. d. Elimination of all traces of plasma cells from the body.
Last Answer : b. Accumulation of ige on the surfaces of mast cells and basophils.
Description : Cancer cells interfere with cell functions in all the following ways except: a. they rob cells of their nutrients and induce cell starvation. b. they stimulate the immune system to produce destructive ... reduce the oxygen supply to cells. d. they overwhelm cells through sheer force of numbers.
Last Answer : b. they stimulate the immune system to produce destructive interferons.
Description : Natural killer cells are involved in A- .tumour rejection B- .allograft rejection C- non-specific killing of virus transformed target cells D- all of these
Last Answer : all of these
Description : Enzymes, which are produced in inactive form in the living cells, are called (A) Papain (B) Lysozymes (C) Apoenzymes (D) Proenzymes
Last Answer : Answer : D
Description : Assertion : The mantel of pearl oyster is three - layred. Reason : Nacre- secreting cells are present just below the nacreous layer .
Last Answer : Assertion : The mantel of pearl oyster is three - layred. Reason : Nacre- secreting cells are present ... D. If both Assertion and Reason are false.
Description : In the stomach, gastric acid is secreted by the (a) peptic cells (b) acidic cells (c) gastrin secreting cells (d) parietal cells.
Last Answer : (d) parietal cells.
Description : Histamine secreting cells are found in (a) connective tissues (b) lungs (c) muscular tissue (d) nervous tissue
Last Answer : (a) connective tissues
Description : Predominant cell types in typical chronic inflammation are all of the following EXCEPT: A A. Polymorphonuclear leukocytes B. Macrophages C. T helper lymphocytes D. NK cells
Last Answer : Polymorphonuclear leukocytes
Description : What is the thermal death time? a. The Time Necessary To Kill Bacteria At A Specific Temperature b. The Temperature Necessary To Kill Microbes In A Specific Time c. The Average Amount Of Time To Kill Microbial Cells d. It Is The Same As The Thermal Death Point
Last Answer : a. The Time Necessary To Kill Bacteria At A Specific Temperature
Description : Polymorphonuclear leukocytes (or PMNs) A- can be attracted to the site of an infection following activation of complement B- are derived from bone marrow stem cells C- are a type of phagocyte that can engulf and kill bacteria D- .all of the above
Last Answer : .all of the above
Description : Which of the following is correct for CD8 T cells? A- CD8 T cells only recognize virus-infected cells B- CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells ... selection only D- CD8 T cells can kill individual virus-infected cells in a contact dependent fashion
Last Answer : CD8 T cells can kill individual virus-infected cells in a contact dependent fashion
Description : How do interferons check infection of new cells? -Biology
Last Answer : answer:
Description : Assertion : Interferons are a type of antibodies produced by body cells infected by bacteria. Reason : Interferons stimulate inflammation at the site
Last Answer : Assertion : Interferons are a type of antibodies produced by body cells infected by bacteria. Reason ... . If both the assertion and reason are false
Description : With regard to interferons: a. they are produced by B lymphocytes b. IFN-gamma is produced by cells infected with virus c. IFN-gamma increases MCH class I and II expression in antigen presenting cell d. IFN-gamma is produced by fibroblasts
Last Answer : IFN-gamma is produced by cells infected with virus
Description : Proteins formed when cells are exposed to viral or foreign agents that are capable of activating other components of the immune system are referred to as a) interferons. Interferons are biologic ... series of enzymatic proteins in the serum that, when activated, destroy bacteria and other cells.
Last Answer : a) interferons. Interferons are biologic response modifiers with nonspecific viricidal proteins.
Description : 6 Interferons are produced by virus infected cells to protect healthy plants from virus infection. Identify the type of barrier it represents. a. cytokine b. physical c. cellular d. physiological
Last Answer : Ans. cytokine
Description : Lysozymes are found in
Last Answer : Lysozymes are found in A. In saliva and tears both B. In tears C. In saliva D. In mitochondria
Description : .Viruses that infect bacteria multiply and cause their lysis, are called (a) lysozymes (b) lipolytic (c) lytic (d) lysogenic
Last Answer : (c) lytic
Description : What are natural killer cells ?
Last Answer : The cell that usually destroys the virus infection is called the natural killer cell. It is usually mixed with blood. However, if necessary, go somewhere and attack , which is to protect the body.
Description : Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the new born infants because it contains (a) immunoglobulin A (b) natural killer cells (c) monocytes (d) macrophages.
Last Answer : (a) immunoglobulin A
Description : The promoter on an expression vector used to overproduce proteins in bacteria is A.a bacterial promoter B.expressed both in bacteria and mammalian cells C.not a regulated promoter D.the natural promoter of the gene being cloned
Last Answer : A.a bacterial promoter
Description : Which of the following early natural philosophers coined the term cells? a. Lister b. Koch c. Hooke d. Leeuwenhoek
Last Answer : c. Hooke
Description : What is the name of the hormone secreting organ ?
Last Answer : : The name of the hormone-releasing organ is the gallbladder body.
Description : How many hormone secreting glands ?
Last Answer : 2 hormone secreting glands
Description : Name of Hormone………..Gland secreting Hormone
Last Answer : a) Insulin…….............…Pancreas b) Thyroxin…….............Thyroid c) Adrenaline…............Adrenal Medulla d) Oestrogen…... .......…Ovaries e) Testosterone…........Testes f) Cortisol………... .........Adrenal Cortex
Description : Penalty for fraudulently preparing, altering, secreting or destroying Post Office documents a) Punishable with fine which may extend to hundred rupees and 1 month imprisonment b) Punishable with imprisonment for ... c) Punishable with fine which may extend to two hundred rupees d) None of these
Last Answer : b) Punishable with imprisonment for a term which may extend to two years, and shall also be punishable with fine
Description : Salt secreting trichomes are found in
Last Answer : Salt secreting trichomes are found in – Artiplex
Description : Is NK planning war?
Last Answer : If they intend to attack Japan, let Japan deal with it.
Description : Name the newly appointed MD of State Bank of Travancore. A) PN Naidu B) Naresh Sharma C) NK Chari D) CR Sasikumar E) Ravi Verma
Last Answer : D) CR Sasikumar Explanation: CR Sasikumar assumed the charge of Managing Director of State Bank of Travancore (SBT), one of the associate banks of State Bank of India (SBI), on June
Description : A) NK Chari Explanation: N.K.Chari, the new Managing Director of State Bank of Mysore, assumed office on May
Last Answer : Prior to his new position, he was the Deputy Managing Director of State Bank of India.
Description : If there are n integers to sort, each integer has d digits and each digit is in the set {1,2, ..., k}, radix sort can sort the numbers in: (A) O(d n k) (B) O(d nk) (C) O((d+n)k) (D) O(d(n+k))
Last Answer : (D) O(d(n+k))
Description : If you were to become a serial killer how would you kill your victims?
Last Answer : Your moniker is kind of a clue as to how you would do it.
Description : If someone were to kill the President, or Prime Minister, or leader of your country, and he'd be up for parole after 25-50 (x amount) of years, would you want the killer to be realeased?
Last Answer : This is an issue for the state that sentenced him.
Description : Will commercial ant killer kill rosemary plants
Last Answer : Professionals use a much stronger chemical than we can use, it is possible
Description : I need a weed killer, that won't kill my ivy, or juniper bushes
Last Answer : Something that is a weed killer will not damage your ivy or your juniper bushes. The weed killer will have a list of weeds it will kill on the label. Read it and follow the ... if you bought concentrate thinking you could apply it full strength and therefore onlhy need to apply one time.
Description : My brother has always been the adventurous type. Unlike me, a high ranking government official, my dear brother avoids politics whenever possible, choosing to pursue more dangerous interests. In fact, my brother ... all of this information, can you state my name and the name of my brother? -Riddles
Last Answer : My name is Mycroft Holmes, and the name of my celebrated brother is Sherlock.
Description : During Griffith's transformation experiments _____. a. Live S Strain Bacteria Mixed With Dead R Strain Bacteria Caused Animal Death. b. Live S Strain Bacteria Mixed With Dead R Strain Bacteria Failed To ... . d. Dead S Strain Bacteria Mixed With Live R Strain Bacteria Failed To Kill The Animals.
Last Answer : c. Dead S Strain Bacteria Mixed With Live R Strain Bacteria Caused Animal Death.
Description : Ethylene oxide can be used toa. Kill Bacterial Spores. b. Clean Wounds. c. Sanitize Work Surfaces. d. Treat Water Supplies.
Last Answer : a. Kill Bacterial Spores.
Description : If a chemical has a phenol coefficient (PC) of 63, it means the chemical a. ‗Is Better Than One With A PC Of 22., b. Will Kill 63P/O Of Bacteria. c. Kills Microbes At 63°C. d. Will Kill All Bacteria In 63 Minutes.
Last Answer : a. ‗Is Better Than One With A PC Of 22.,
Description : The thermal death time is a. The Time To Kill A Microbial Population At A Given Temperature. b. The Time To Kill A Microbial Population In Boiling Water. c. The Temperature To Kill All Pathogens. d. The Minimal Temperature Need To Kill A Microbial Population.
Last Answer : a. The Time To Kill A Microbial Population At A Given Temperature.
Description : What are interferons? -Biology
Last Answer : Interferons (IFNs) are proteins produced by a variety of cells in the inflammatory response to infections. Their production is triggered by the immune system in response to pathogens or cytokines. ... IFNs can play both pathological and beneficial roles in the nervous system.
Description : Assertion : Interferons are effective against viruses. Reason : Proteins which can be synthesized only by genetic engineering are effective against vi
Last Answer : Assertion : Interferons are effective against viruses. Reason : Proteins which can be synthesized only ... If both the assertion and reason are false