Tag: classification of hormones
Questions Related to classification of hormones
Hormones are produced at a particular centralized site and transported throughout the organism by means of
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a series of synapses
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an integrated neural pathway system.
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cellular communication
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an internal transport system
Steroid-based hormones are able to act inside the cell. This is possible because
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there are no receptors for hormones on the cell surface
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hormones must interact with the nucleus to have an effect.
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proteins carry them into the cell
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steroid-based hormones are hydrophobic molecules that can pass through the cell membrane.
The mode of action of steroid hormones involves
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a second messenger.
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modification of enzyme activity.
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stimulation of DNA replication.
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stimulation of mRNA transcription
All of the following statements are true about hormones except
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They are transporated by the circulatory system
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They bind to receptors on target cells
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They must be present in large quantities to have an effect
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They are secreted by endocrine glands
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They can affect organs of the body that are far removed from their site of synthesis
Choose the peptide hormone from the following
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adrenaline
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Insulin
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Testosterone
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Progesterone
Peptide hormones are the one which have single or multiple long amino acid chain/s. Insulin is a peptide hormone with two amino acid chains, one with 21 and other with 30 amino acids. This makes option B correct.
Identify the incorrect pair.
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Fatty acid- Insulin
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Glucose- Chitin
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Thymine- Nucleotide
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Amino acid- Hemoglobin
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Nitrogen- Uric acid
Chitin is a polymer of N-acetyl glucosamine which in turn is a derivative of glucose.
Chemically hormones are
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Biogenetic amines only
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Proteins, steroids and biogenetic amines
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Proteins only
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Steroids only
Hormones are certain essential substances in our bodies that are released by our body's endocrine system. They are chemical messengers in our bodies that transmit messages for the action of various glands in our bodies and their secretions.
With increasing age, secretion of which of the following reduces to almost half?
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GTH
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Melatonin
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Estrogen
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ADH
Which hormone promotes cell division, protein synthesis
and bone growth
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GH (STH)
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PTH
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ADH
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ACTH
The chief function of STH (GH) is to promote synthesis and secretion of small protein hormone called insulin like growth factors (IGFs).
Epinepherine is
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Nephrostomal part of mesoderm
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Clusters of glomeruli in mammalian kidney
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Hormone of the adrenal gland
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Frontal lobe of nephritides
The chromatin cells of adrenal medulla synthesize two hormones adrenaline or epinephrine (80%) and noradrenaline or norepinephrine (20%).