Description : What is the function of troponin and tropomyosin and what negates them?
Last Answer : Need answer
Description : Myosin bridges can be prevented from combining actin by two regulator proteins in resting muscle by (a) troponin (b) myofibril (c) troponin and tropomyosin (d) natural inhibiting proteins
Last Answer : Ans:(c)
Description : The contractile proteins in a muscle are (1) Actin and Myosin (2) Actin and Tropomyosin (3) Myosin and Troponin (4)Troponin and Tropomyosin
Last Answer : (1) Actin and Myosin Explanation: Muscle fibers or myofibrils are formed of three types of proteins which are (1) contractile, (2) regulatory, and (3) structural. Contractile proteins are the force ... are Actin which is part of thin filament and Myosin, which is part of the thick filament.
Description : In the skeletal muscle: a. myosin is found in the thick filament b. the thin filament contains actin and troponin c. during stimulus excitation calcium ions are derived from the serum d. tropomyosin masks the myosin-combining sites on the actin
Last Answer : tropomyosin masks the myosin-combining sites on the actin
Description : With reference to the skeletal muscle myofilaments a. actin is the major constituent of thin filaments b. myosin and tropomyosin combine to form the thick filaments c. troponin is a constituents of thin filaments d. tropomyosin prevents the interaction of actin and myosin in the resting state
Last Answer : actin is the major constituent of thin filaments
Description : The contractile protein of skeletal muscle involving ATPase activity is (a) troponin (b) tropomyosin (c) myosin (d) α-actinin.
Last Answer : (c) myosin
Description : The contractile proteins in a muscle are (1) Actin and Myosin (2) Actin and Tropomyosin (3) Myosin and Troponin (4) Troponin and Tropomyosin
Last Answer : Actin and Myosin
Description : What is the Bilaminar Zone:** A. Formed of, or having, two laminae, or thin plates. Which is the distal attachment of superior hard lateral plate B. A vascular, innervated tissue that plays an important role in allowing the condyle to move foreward
Last Answer : B. A vascular, innervated tissue that plays an important role in allowing the condyle to move foreward
Description : Calcium is important in skeletal muscle contraction because it (a) binds to troponin to remove the masking of active sites on actin for myosin (b) activates the myosin ATPase by binding to it ... filament (d) prevents the formation of bonds between the myosin cross bridges and the actin filament.
Last Answer : (a) binds to troponin to remove the masking of active sites on actin for myosin
Description : Calcium is important in skeletal muscle contraction because it :- (1) binds to troponin to remove the masking of active sites on actin for myosin. (2) activates the myosin ATPase by binding to ... filament. (4) prevents the formation of bonds between the myosin cross bridges and the actin filament.
Last Answer : (1) binds to troponin to remove the masking of active sites on actin for myosin.
Description : In the mammalian body, this element plays many important roles. Try to identify this element with the fewest number of clues. This element is required to insure the integrity and permeability of ... involved in blood coagulation and is the most important element of bone salt. Name this element.
Last Answer : ANSWER: Calcium
Description : The phase of contraction of a muscle occurs when: a) tropomyosin binds and releases actin b) myosin binds and releases actin c) actin binds and releases myosin d) none of the above
Last Answer : ANSWER: B -- MYOSIN BINDS AND RELEASES ACTIN
Description : Assertion `:-` The JGA plays a complex regulaltory role. Reason `:-` An increase in glomerular blood flow `//` GFR can activate JG cells to release re
Last Answer : Assertion `:-` The JGA plays a complex regulaltory role. Reason `:-` An increase in glomerular blood ... . D. If both Assertion & Reason are false.
Description : The sequence of events in muscle contraction a. action potential depolarise the T-tubules b. depolarisation of T-tubules release calcium from sarcoplasmic reticulum c. calcium binds to the troponin-tropomycin complex d. all above
Last Answer : all above
Description : Assertion: In humans, the duct of Wirsung from pancreas combines with bile duct before opening into duodenum. Reason: Blockage in the duct of Wirsung
Last Answer : Assertion: In humans, the duct of Wirsung from pancreas combines with bile duct before ... Wirsung will hamper the endocrine function of pancreas
Description : ATP provides energy of muscle contraction by allowing for
Last Answer : ATP provides energy of muscle contraction by allowing for A. Cross-bridge attachment of myosin to ... Release of `Ca^(+)` from sarcoplasmic reticulum
Description : Although much CO2 is carried in blood, yet blood does not become acidic, because (a) CO2 is continuously diffused through the tissues and is not allowed to accumulate (b) in CO2 transport, ... absorbed by the leucocytes (d) CO2 combines with water to form H2CO3 which is neutralised by NaCO3.
Last Answer : (b) in CO2 transport, blood buffers play an important role
Description : What is the neutral zone: A. The zone where displacing forces are neutral B. The zone where buccal and lingual forces are balanced
Last Answer : B. The zone where buccal and lingual forces are balanced
Description : Menadione (vitamin K3) can produce kernicterus in neonates by: A. Inducing haemolysis B. Inhibiting glucuronidation of bilirubin C. Displacing plasma protein bound bilirubin D. Both ‘A’ and ‘B’ are correct
Last Answer : D. Both ‘A’ and ‘B’ are correct
Description : Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : The threshold stimulus is the minimum stimulus r
Last Answer : Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : ... D. If both Assertion and Reason are false.
Description : Assertion: Cholagogues are substances that cause the contraction of gall bladder. Reason: These substances cause release of CCK-PZ from duodenum
Last Answer : Assertion: Cholagogues are substances that cause the contraction of gall bladder. Reason: These substances cause release of CCK-PZ from duodenum
Description : EDTA injected into muscles combines with `Ca^(2+)` and
Last Answer : EDTA injected into muscles combines with `Ca^(2+)` and A. Stops contraction B. Causes contraction C. Slows down contraction D. None of the above
Description : Assertion: Platelets play an important role in blood clotting. Reason: In the blood oozing from an injury, the platelets disintegrate and release thro
Last Answer : Assertion: Platelets play an important role in blood clotting. Reason: In the blood oozing from an ... D. If both Assertion & Reason are false.
Description : What kind of organizational structure combines a vertical chain of command with horizontal reporting requirements? (a) Line authority ; (b) Matrix ; (c) Functional ; (d) Line-and-staff
Last Answer : (b) Matrix ;
Description : “Air transport plays an important role in the international trade.” Support the statement. -Geography
Last Answer : (i) Air transport is the fastest means of transportation but it is very costly. It plays an important role in international trade. (ii) Valuable cargo can be moved rapidly on a worldwide scale ... . (v) Today more than 250 commercial airlines offer regular services to different parts of the world.
Description : Give two reasons why Tamil Nadu plays an important role in the production of cotton textiles? -SST 10th
Last Answer : (i) Most of them manufacture yam only to meet the needs of handloom weavers. (ii) It also has proximity to vast local market, availability of cheap skilled labour and hydel power.
Last Answer : Computers make the biggest contribution to the development of technology.
Description : Do you think a leader plays an important role in a country?
Last Answer : ROLES OF THE LEADER. Make sure you fulfill the following critical roles of a leader to drive the success of your practice. Provide a Vision. ... Establish Effective Organizational Structure and Communication ... . ... Inspire and Motivate. ... Delegate and Empower. ... Effective Time Management.
Description : Inert pair effect plays an important role in the case of
Last Answer : Inert pair effect plays an important role in the case of A. P B. Bi C. Sb D. As
Description : I am a lobular structrue located between lungs behind sternum on the vental side of aorta and plays an important role in the development of the immune
Last Answer : I am a lobular structrue located between lungs behind sternum on the vental side of aorta and ... the development of the immune system. Identify me.
Description : Which of the following plays an important role in photosynthesis?
Last Answer : Chloroplast
Description : What are some examples of biological activities in which osmosis plays important role ?
Last Answer : Hemolysis (destruction of red blood cells) by entrance of water, the hydric regulation in plants and the entrance of water in the xylem of vascular plants are all examples of biological phenomena caused by ... of water in plant roots since root cells are hypertonic in comparison to the soil.
Description : Mony Plays an Important role in economy according to: A. Fiscalists B. New Classicals C. Monetarists D. None of these
Last Answer : ANSWER: C
Description : The House of Lords in Great Britain is mainly retained because - (1) It is as important as the House of Commons (2) It plays an important role of checks and balances (3) It acts as a judicial court (4) It is maintained as an institution
Last Answer : (4) It is maintained as an institution Explanation: It is observed That British people are very conservative and have great regard for their historical institutions. Therefore, they continue to support historical institutions like Crown and House of Lords.
Description : Which of the following plays an important role in photosynthesis? (1) Chloroplast (2) Centrosome (3) Tonoplast (4) Nematoblast
Last Answer : (1) Chloroplast Explanation: chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct ... converts it and stores it in the energy-storage molecules while freeing oxygen from water.
Description : Which part of the brain plays an important role in motor control? (1) Cerebellum (2) Cerebrum (3) Medulla (4) Pons
Last Answer : (1) Cerebellum Explanation: The cerebellum, also known as little brain, is a region of the brain that plays an important role in balance and motor control. It is also involved in some ... functions (such as regulating fear and plea-sure responses) and in the processing of procedural memories.
Description : Which of the following plays an important role in the loan approval process? A. Credit Information Report (CIR) B. CIBIL TransUnion Score C. Only A D. Both (A) and (B) E. None of the Above
Last Answer : D. Both (A) and (B) Explanation: The Credit Information Report (CIR) and CIBIL TransUnion Score are very important in the loan approval process.
Description : Which of the following plays an important role in problems of simultaneous heat and mass transfer (A) Lewis number (B) Schmidt number (C) Prandtl number (D) Sherwood number
Last Answer : (A) Lewis number
Description : Which of the following plays an important role in edema formation? C A. Arteriolar dilatation B. Decreased venous flow C. All of the above D. None of these
Last Answer : All of the above
Description : The following function plays an important role in the experimental modal analysis: a. time-response function b. modal-response function c. frequency-response function
Last Answer : c. frequency-response function
Description : Which of the following elements plays an important role in biological nitrogen fixation? (a) Copper (b) Molybdenum (c) Zinc (d) Manganese
Last Answer : b) Molybdenum
Description : “Ergonomics plays an important role in passenger comfort” justify this statement with illustrations.
Last Answer : Ergonomics plays an important role in ensuring complete comfort for the driver and the passenger, ensuring smooth journey, and maximizing experience. Ergonomics is the process of designing or arranging ... involves study of human seating posture, human body dimensions etc. During ride the vehicle
Description : Which of the following plays an important role in photosynthesis ? (1) Chloroplast (2) Centrosome (3) Tonoplast (4) Nematoblast
Last Answer : Cerebellum
Description : Assertion : IgM is a type of immunoglobulin which cannot cross the placenta Reason : IgM is a pentamer immunoglobulin jointed by I-chain
Last Answer : Assertion : IgM is a type of immunoglobulin which cannot cross the placenta Reason : IgM is a ... D. If both the assertion and reason are false
Description : Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ): Number of organisms at any trophic level depends
Last Answer : Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ... . D. If both assertion and reason are false.
Description : Assertion:A network of food chain existing together in an ecosystem is known as food web. Reason: An animal like kite cannot be a part of a food web.
Last Answer : Assertion:A network of food chain existing together in an ecosystem is known as food web. Reason: An ... . D. If both assertion and reason are false.
Description : Assertion: Detritus food chain begins with decomposers. Reason: Detrivores, like fungi and bacteria, are major decomposers in such food chains.
Last Answer : Assertion: Detritus food chain begins with decomposers. Reason: Detrivores, like fungi and bacteria, are ... and Reason are false, then mark (4)