Q. Two key organizing principles for large multicellular organisms are

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Q. Which of the following statement is incorrect?

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Q. Which of the following is a second messenger?

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Q. Which of the following comes under the category of cell surface receptor?

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Q. Why is it that inhaling nitric oxide reduces blood pressure only in the lung tissue and not elsewhere in the body*?

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Q. When a __________ reaches its __________ , there is a specific means of receiving it and acting on the message. This task is the responsibility of specialized proteins called __________ .

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Q. Which of the following statements about G proteins is false?

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Q. Self-phosphorylation is an excellent mechanism for triggering specific catalytic function of the proteins involved in signal cascades because it

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Q. Which of the following is not a type of signaling molecule?

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Q. Simple nerve reflexes use signaling molecules called

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Q. In paracrine signaling, the signaling molecules affects only

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Q. SH2 domains specifically bind to

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Q. Small charged molecules, often biogenic amines function as

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Q. A signal cascade induced by adrenaline or thyroxine

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Q. Which of the following processes involve the combining of a message from one signaling molecule with that of another to either enhance or inhibit a cellular effect?

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Q. The binding of ligands to many G-proteins linked receptors leads to shortlived

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Q. The enzyme that catalyzes the splitting of PIP2 into two molecules of inositol triphosphate (IP3) and diacylglycerol in cell signaling, is

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Q. A cell is known to respond to a particular signaling molecule. Which of the following must be true of this cell?

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Q. In vasodilation, proper nerve signals sent to blood vessels cause

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Q. Which of the following statement is correct?

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