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RRB JE 2019 Exam: Biology Quiz [Human Organ] | 8th February

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Q1. Male sex harmone is
पुरुष सेक्स हार्मोन कौन से होते है?
(a) Adrenalen/एड्रेनालेन
(b) Progestron/ प्रोजेस्टेरोन
(c) Testosterone/ टेस्टोस्टेरोन
(d) FSH

Show Answer

Sol. Testosterone belongs to a class of male hormones called androgens, which are sometimes called steroids or anabolic steroids. In men, testosterone is produced mainly in the testes, with a small amount made in the adrenal glands. The brain’s hypothalamus and pituitary gland control testosterone production.

Q2. Which of the following is a female sex harmone
निम्नलिखित में से कौन सा महिला सेक्स हार्मोन है?
(a) Estrogen/ एस्ट्रोजेन
(b) Androgen/ एण्ड्रोजन
(c) Auxin/ ऑक्सिन
(d) Insulin/ इंसुलिन

Show Answer

Sol. Estrogen, or oestrogen, is the primary female sex hormone. It is responsible for the development and regulation of the female reproductive system and secondary sex characteristics.

Q3. Estrogen is secreted by
एस्ट्रोजन किसके द्वारा स्रावित होता है?
(a) Corpus luteum/ कॉर्पस ल्यूटियम
(b) Corpus callosm/ महासंयोजिका
(c) Lyding cells/लाकोशिकाईडिंग
(d) Gaffican follicle/गफ्फिकन फॉलिकल

Show Answer

Sol. Estrogens are produced primarily by the ovaries. They are released by the follicles on the ovaries and are also secreted by the corpus luteum after the egg has been released from the follicle and from the placenta.

Q4. Which of the following harmone is called emergency harmone?
निम्नलिखित में से कौन सा हार्मोन आपातकालीन हार्मोन कहा जाता है?
(a) Insulin/इन्सुलिन
(b) Adrenalin/एड्रेनैलिन
(c) Estrogen/एस्ट्रोजन
(d) Oxytocin/ऑक्सीटोसिन


Show Answer

Sol. Adrenaline is a hormone secreted by adrenal medulla during stress. This is called as emergency hormone because it initiates quick reation which makes the individual to think and respond quickly to the stress. The hormone increases metabolic rate. there occurs dialation of blood vessels going to heart and the brain.


Q5. Which of the following glands regulates calcium level?
निम्नलिखित में से कौन सी ग्रंथि कैल्शियम के स्तर को नियंत्रित करती है?
(a) Parathyroid/ पैराथाइरॉइड
(b) Thyroid/ थाइरोइड
(c) Thymous/ थाइमस
(d) Adrenal/ एड्रि‍नल

Show Answer

Sol. Parathyroid Hormone (PTH) from the parathyroid glands regulates calcium level and it’s needed for muscle contraction and blood clotting. It’s critical to maintaining plasma concentration of Ca+2. PTH is essential for life because of calciums effect on neuromuscular capability.


Q6. Life saving harmone is
जीवन रक्षक हार्मोन कौन सा है?
(a) Adrenal/ एड्रि‍नल
(b) Pituitary/ पिट्यूटरी
(c) Thyroid/ थाइरोइड
(d) all of them/ऊपर के सभी

Show Answer

Sol. The adrenal glands (also known as suprarenal glands) are endocrine glands that produce a variety of hormones including adrenaline and the steroids aldosterone and cortisol. They are found above the kidneys. Adrenal is Life saving harmone .



Q7. Which one among the following glands is present in pairs in human body?
निम्नलिखित ग्रंथियों में से कौन सा मानव शरीर में जोड़े में मौजूद है?
(a) Adrenal/ एड्रि‍नल
(b) Liver/ यकृत
(c) Pancreas/ अग्न्याशय
(d) Pineal/ पिनियल

Show Answer

Sol. The adrenal glands are small structures attached to the top of each kidney. The human body has two adrenal glands.

Q8. The filtration unit of kidney is
किडनी की निस्पंदन इकाई क्या है?
(a) Neuron/ न्यूरॉन
(b) Yellow fiber/ पीला फाइबर
(c) Axon / एक्सोन
(d) Nephron/ नेफ्रॉन

Show Answer

Sol. Nephrons are the microscopic basic filtration units of the kidney. A single nephron is made up of renal corpuscle and a renal tubule. In turn renal corpuscle is made up of glomerulus and Bowman’s capsule.

Q9. Which of the following gland is responsible for the secretion of insulin.
इंसुलिन के स्राव के लिए निम्नलिखित में से कौन सी ग्रंथि जिम्मेदार है?
(a) Pituitary/ पिट्यूटरी
(b) Pineal/ पीनियल
(c) Thymus/ थाइमस
(d) Pancrease/ अग्न्याशय

Show Answer

Sol. Pancreas producing several important hormones, including insulin, glucagon, somatostatin, and pancreatic polypeptide and a digestive organ secreting pancreatic juice containing digestive enzymes that help with the absorption of nutrients and digestion in the small intestine.

Q10. Which of the following cell secret insulin–
निम्नलिखित में से कौन सी कोशिका इंसुलिन स्रावित करता है?
(a) α – cell/ कोशिका
(b) δ-cell / कोशिका
(c) β – cell / कोशिका
(d) nerve cell/ तंत्रिका कोशिका

Show Answer

Sol. Pancreatic islets house three major cell types, each of which produces a different endocrine product Alpha cells secrete the hormone glucagon. Beta cells produce insulin and are the most abundant of the islet cells.


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