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Learn SSC MCQs with answers [Page 3 of Department 243]
21) Which of the following hormone is released in excess quantity during excitement?
(A) Cortisone
(B) Serotonin
(C) Adrenaline
(D) Oestrogen
Correct Answer - Option
(C)
Explanation :
Adrenaline is a hormone produced by the adrenal glands during high stress or exciting situations. This powerful hormone is part of the human body's acute stress response system, also called the "fight or flight" response. It works by stimulating the heart rate, contracting blood vessels, and dilating air passages, all of which work to increase blood flow to the muscles and oxygen to the lungs.
22) Which one of the following is an abnormal constituent of urine?
(A) Creatinine
(B) Urea
(C) Uric acid
(D) Ketone bodies
Correct Answer - Option
(D)
Explanation :
Ketone bodies are three water- soluble compounds that are produced as by- products when fatty acids are broken down for energy in the liver. Two of the three are used as a source of energy in the heart and brain while the third is a waste product excreted from the body. When the rate of synthesis of ketone bodies exceeds the rate of utilization, theirconcentration in blood increases, this is known as ketonemia.
23) Which one of the following cells produces antibodies?
(A) Eosinophil
(B) Monocyte
(C) Basophil
(D) Lymphocytes
Correct Answer - Option
(D)
Explanation :
Antibodies are secreted by a type of Lymphocytes (White Blood cell). Antibodies can occur in two physical forms, a soluble form that is secreted from the cell, and a membrane- bound form that is attached to the surface of a B cell and is referred to as the B cell receptor (BCR). An antibody (Ab), also known as an immunoglobulin (Ig), is a large Y-shaped protein produced by lymphocytes that is used by the immune system to identify and neutralize foreign objects such as bacteria and viruses. The antibody recognizes a unique part of the foreign target, called an antigen.
Toxicology is the study of the adverse effects of chemicals on living organisms. It is the study of symptoms, mechanisms, treatments and detection of poisoning, especially the poisoning of people. The relationship between dose and its effects on the exposed organism is of high significance in toxicology. The chief criterion regarding the toxicity of a chemical is the dose, i.e. the amount of exposure to the substance. All substances are toxic under the right conditions.
26) Which of the following hormones is released in excess quantity during excitement’?
(A) Cortisone
(B) Serotonin
(C) Adrenaline
(D) Oestrogen
Correct Answer - Option
(C)
Explanation :
Adrenaline is a hormone produced by the adrenal glands during high stress or exciting situations. This powerful hormone is part of the human body's acute stress response system, also called the "fight or flight" response. It works by stimulating the heart rate, contracting blood vessels, and dilating air passages, all of which work to increase blood flow to the muscles and oxygen to the lungs. Additionally, it is used as a medical treatment for some potentially life-threatening conditions including anaphylactic shock. In the US, the medical community largely refers to this hormone as epinephrine, although the two terms may be used interchangeably.
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