We have an emergency clinical situation, which requires a drug to produce both bronchodilation and raise blood pressure. Which one of the following drugs can achieve these two goals?

Correct Answer: B

Rationale: Rationale: 1. Adrenaline is a non-selective adrenergic agonist that acts on both alpha and beta receptors. 2. Activation of beta-2 receptors in the lungs causes bronchodilation. 3. Activation of alpha-1 receptors in blood vessels raises blood pressure. 4. Atropine (A) is a muscarinic antagonist, not adrenergic. 5. Isoproterenol (C) primarily targets beta receptors, not alpha for blood pressure. 6. Noradrenaline (D) mainly acts on alpha receptors, not beta for bronchodilation.

Correct Answer: A

Rationale: Step 1: Increased muscle growth (1) is due to testosterone promoting protein synthesis, leading to muscle hypertrophy. Step 2: Deepening of voice (2) is caused by testosterone thickening the vocal cords. Step 3: Growth of facial hair (3) is stimulated by testosterone promoting hair follicle growth. Step 4: Enlargement of testes (4) is a direct effect of increased testosterone levels. Therefore, choices A, B, C, and D are analyzed: - B is incorrect as it excludes the enlargement of testes. - C is incorrect as it excludes the growth of facial hair. - D is incorrect as it excludes both muscle growth and the growth of facial hair. Conclusion: Choice A is correct as it includes all the effects of increased testosterone secretion during puberty in male humans.

Correct Answer: D

Rationale: The correct order of reactivity for elements is based on their tendency to lose electrons. In this case, sodium is the most reactive as it readily loses an electron to form a stable ion. Zinc is less reactive compared to sodium but more reactive than hydrogen and gold. Hydrogen is less reactive than both zinc and sodium. Gold is the least reactive among the options given. Therefore, the correct order of reactivity is sodium > zinc > hydrogen > gold, which matches option D. Choices A, B, and C do not follow the correct order of reactivity for the elements listed, making them incorrect.

Correct Answer: C

Rationale: The correct answer is C: -1, 0. Electrons have a charge of -1, while neutrons have no charge (0). This is because electrons are negatively charged particles, while neutrons are neutral. The other choices are incorrect because A: 0, 0 doesn't differentiate between the charges of electrons and neutrons, B: 0, -1 incorrectly assigns a charge to neutrons, and D: -1, +1 incorrectly assigns a charge to neutrons and doesn't represent the relative charges accurately.

Correct Answer: C

Rationale: The correct answer is C: ADH. The pituitary gland consists of two parts: the anterior and posterior pituitary. ADH, also known as vasopressin, is synthesized in the hypothalamus and stored in the posterior pituitary. Therefore, it is not synthesized in the pituitary gland itself. LH, FSH, and TSH are all hormones synthesized and released by the anterior pituitary gland.