Choose the incorrect statement with respect to the hormone melatonin.
1) Melatonin plays an important role in the regulation of the diurnal rhythm of our body. 2) Iodine is essential... View Article
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Lobes of the thyroid gland are connected by
1) parafollicular cells 2) follicular cells 3) isthmus 4) none of the above Answer:3) isthmus Explanation: The two lobes of... View Article
The pineal body is located in
1) the dorsal side of the forebrain 2) the sella turcica 3) the basal part of the diencephalon in the... View Article
The pineal gland secretes
1) melatonin 2) thyroxine 3) somatostatin 4) gonadotropin-releasing hormone Answer:1) melatonin Explanation: The pineal gland is present at the dorsal... View Article
Which hormone stimulates the synthesis and secretion of glucocorticoids?
1) ACTH 2) MSH 3) Triiodothyronine 4) TSH Answer:1) ACTH Explanation: Adrenocorticotropic hormone or ACTH stimulates the adrenal cortex to... View Article
Match the following hormones with the organ or tissue it acts on.
Column 1 Column 2 P. Secretin 1. Gastric glands Q. Cholecystokinin 2. Exocrine pancreas R. Gastrin 3. Pancreas and gallbladder... View Article
Which of the following hormones is secreted by the endocrine cells of the gastrointestinal tract?
1) Secretin 2) Cholecystokinin 3) Gastrin 4) All of the above Answer:4) All of the above Explanation: Endocrine cells present... View Article
Which hormone is not a gastrointestinal hormone?
1) Cholecystokinin 2) Gastrin 3) Renin 4) Secretin Answer:3) Renin Explanation: Renin is secreted by kidneys and participates in the... View Article
Choose the correct hormone and its source.
1) Heart – Secretin 2) GI tract – Pepsin 3) Kidney – Erythropoietin 4) Lungs – ANF Answer:3) Kidney –... View Article
Which of the following hormones is responsible for decreasing the blood pressure?
1) Adrenaline 2) Atrial natriuretic factor 3) Cortisol 4) Noradrenaline Answer:2) Atrial natriuretic factor Explanation: Atrial natriuretic factor decreases blood... View Article
Which of the following hormones can cross the cell membrane of the target cell?
1) Epinephrine 2) Follicle-stimulating hormone 3) Progesterone 4) Prolactin Answer:3) Progesterone Explanation: Lipid soluble hormones such as steroid hormones and... View Article
How many of the following hormones do not enter the target cell?
Iodothyronine, Testosterone, Estradiol, insulin, Glucagon 1) 4 2) 3 3) 6 4) 2 Answer:4) 2 Explanation: Hormones that bind to... View Article
Hormone receptors present on the cell membrane of the target cells are called ______ and the receptors present inside the target cells are called ______.
1) membrane-bound receptors, intracellular receptors 2) intracellular receptors, membrane-bound receptors 3) intercellular receptors, membrane-bound receptors 4) intercellular receptors, intracellular receptors... View Article
The binding of a hormone to its receptor leads to a formation of a _____.
1) target tissue 2) hormone-receptor 3) hormone-receptor complex 4) none of the above Answer:3) hormone-receptor complex Explanation: Hormone binds to... View Article
Which of the following structures connects the hypothalamus to the anterior lobe of the pituitary gland?
1) Dendrites of the neurohypophysis 2) Axons of neurohypophysis 3) Bands of white fibres from the cerebellar region 4) Hypophyseal... View Article
Which of the following is a mismatched pair of hormones and their action?
1) Growth hormone – Growth of the body 2) FSH – stimulates the development of ovarian follicles 3) Prolactin –... View Article
Which of the following is not a function of luteinizing hormone?
1) Ovulation of mature follicle 2) Maintenance of corpus luteum 3) Secretion of androgens from testis 4) Production of sperm... View Article
Which of the following glands does the GnRH stimulate?
1) Posterior pituitary gland and stimulates the secretion of prolactin and oxytocin 2) Anterior pituitary gland and stimulates the secretion... View Article
_________ are required for the formation of one molecule of glucose during the Calvin pathway.
1) 3CO2 + 18ATP + 18NADPH 2) 6CO2 + 12ATP 3) 6CO2 + 18ATP + 12NADPH 4) 6CO2 + 18ATP... View Article
Which is the first stable product formed during the Calvin cycle?
1) Glyceraldehyde-3-phosphate 2) 3-phosphoglycerate 3) Triose phosphate 4) RuBP Answer:2) 3-phosphoglycerate Explanation: The first step of the Calvin cycle is... View Article
