Description : Select the hormone INCORRECTLY paired with its target. a) TSH - thyroid gland b) ACTH - anterior pituitary c) LH - ovary or testis d) MSH - melanocytes (pron: meh-lan-o-cite)
Last Answer : ANSWER: D -- MSH - MELANOCYTES
Description : The highest concentration of cystine can be found in (A) Melanin (B) Chondroitin sulphate (C) Myosin (D) Keratin
Last Answer : Answer : D
Description : Melatonin is synthesised in (A) Hypothalamus (B) Posterior pituitary gland (C) Pineal gland (D) Melanocytes
Last Answer : Answer : C
Description : All the following statements about albinism are correct except (A) Tyrosine hydroxylase (tyrosinase) is absent or deficient in melanocytes (B) Skin is hypopigmented (C) It results in mental retardation (D) Eyes are hypopigmented
Description : Corticotropin releasing hormone controls the direct release of (A) Pro-opiomelanocortin (B) α MSH (C) β MSH (D) Endorphins
Last Answer : Answer : A
Description : All of the following can be formed from pro-opiomelanocortin except (A) α-and β-MSH (B) β-and γ-Lipotropins (C) α-and β-Endorphins(D) FSH
Description : Secretion of MSH is regulated by (A) Feedback mechanism (B) Melatonin (C) Hypothalamic hormones (D) ACTH HORMONE METABOLISM 217
Description : The production of progesterone by corpus luteum cell is stimulated by (A) LH (B) TSH (C) ACTH (D) MSH
Description : Melanogenesis is stimulated by (A) MSH (B) FSH (C) LH (D) HCG
Description : Which of the following terms refers to a condition characterized by destruction of the melanocytes in circumscribed areas of the skin? a) Vitiligo Vitiligo results in the development of white patches ... refers to red marks on the skin caused by stretching of the superficial blood vessels.
Last Answer : a) Vitiligo Vitiligo results in the development of white patches that may be localized or widespread.
Description : True statements about chloroquine include: a. is safer than hydroxychloroquine at equivalent dose b. can cause corneal deposition c. causes posterior subcapsular cataract d. chloroquine is bound to the melanin of the retinal pigment epithelium e. causes reversible toxic maculopathy
Last Answer : can cause corneal deposition
Description : Retina contains this photosensitive pigment: (A) Rhodopsin (B) Opsin (C) Retinol (D) Melanin
Description : Formation of melanin from tyrosine requires the action of (A) Dopa decarboxylation (B) Diamine oxidase (C) Peroxidase (D) Tyrosinase
Description : DOPA is an intermediate in the synthesis of (A) Thyroid hormones (B) Catecholamines (C) Melanin (D) Catecholamines and melanin
Description : All the following statements about phenylketonuria are correct except (A) Phenylalanine cannot be converted into tyrosine (B) Urinary excretion of phenylpyruvate and phenyllactate is increased (C) It ... diet (D) It leads to decreased synthesis of thyroid hormones, catecholamines and melanin
Description : Tryptophan could be considered as precursor of (A) Melanotonin (B) Thyroid hormones (C) Melanin (D) Epinephrine
Description : The fo l low ing substances are ce l l inclusions except (A) Melanin (B) Glycogen (C) Lipids (D) Centrosome
Last Answer : D
Description : Cell type responsible for the release of MSH is
Last Answer : Cell type responsible for the release of MSH is A. Somatotroph B. Lactotroph C. Corticotroph D. None of these
Description : MSH of pars intermedia of middle pituitary is responsible for (a) darkening of skin in lower vertebrates (b) light colouration of skin in lower vertebrates (c) both A and B (d) darkening of skin in human beings.
Last Answer : (a) darkening of skin in lower vertebrates
Description : Secretion of progesterone by corpus luteum is initiated by (a) testosterone (b) thyroxine (c) MSH (d) LH.
Last Answer : d) LH.
Description : MSH is secreted by (a) anterior lobe of pituitary (b) middle lobe of pituitary (c) posterior lobe of pituitary (d) endostyl
Last Answer : b) middle lobe of pituitary
Description : A high concentration of PTH in blood causes (A) Increase in plasma calcium and inorganic phosphorous (B) Decrease in plasma calcium and inorganic phosphorous (C) Increase in plasma calcium ... in plasma inorganic phosphorous (D) Decrease in plasma calcium and increase in plasma inorganic phosphorous
Description : Is your dispersal of lurve, dependent upon your mood?
Last Answer : I like to think I’m consistent. I give GA’s to answers that make me laugh. But I also like to hand out GA’s to people who consistently give good, thoughtful answers.
Description : Name some fruit bearing plants. Now make a table and describe the method of seed dispersal in these fruits as well as the agent which helps in the seed dispersal. -Science-7
Last Answer : Some agent always disperses seeds, either it's external actor self or internal sometimes. First fruit we consider as 1) Dipterocarpus - By wind-Structures such as wings 2) Coconut- by water- fibrous covering 3 ... are there, and the method also varies, and it is due to this reason we get the fruits.
Description : Process of spore dispersal in the Polytrichum? -Biology
Last Answer : answer:
Description : what is the agent of dispersal of xanthium seeds?
Last Answer : animals are the agent of xanthium seeds
Description : Censer mechanism of seed dispersal occurs in
Last Answer : Censer mechanism of seed dispersal occurs in A. Bombax B. Alstonia C. Poppy D. Moringa
Description : What are Advantages of water dispersal?
Last Answer : Need answer
Description : What are Advantages of animal dispersal?
Description : What are the four natural means of seed dispersal?
Description : What is mangrove dispersal method?
Description : What is the dispersal of balsam?
Last Answer : Explosive or splitting action
Description : How are Jackfruit seed dispersal?
Last Answer : IN Brazil, where the jackfruit is considered an invasive species, the fallen fruits are eagerly eaten by small mammals such as the common marmoset and the coati. The seeds are dispersed by these animals,
Description : In muringa; seed dispersal takes place through ....... ?
Last Answer : wind
Description : Seed dispersal in coconut occurs through ........ 2
Last Answer : water
Description : Dispersal of seed by ant is called?
Last Answer : Myrmecochory
Description : What are the different agents of dispersal of seeds and fruits?
Last Answer : Dispersal by Wind: - The seeds, which are of smaller size and lighter, are carried away by wind. These may have wings or hairs, which help them to be dispersed by wind. Examples are cotton ... tissue, which help them to float. Hence they are carried away by water. Examples are lotus and coconut.
Description : Which of the following is an environmental consequence of floods? (a) dispersal of weed species (b) erosion of soil (c) release of pollutants into waterways (d) all of the above.
Last Answer : (d) all of the above.
Description : Which of the following is an environmental consequence of floods? a) Dispersal of weed species b) Erosion of soil c) Release of pollutants into waterways d) All of the above.
Last Answer : d) All of the above.
Description : Moss peristome takes part in (a) spore dispersal (b) photosynthesis (c) protection (d) absorption
Last Answer : (a) spore dispersal
Description : Elater mechanism for spore dispersal is exhibited by (a) liverworts (b) Marchantia (c) Riccia (d) Funaria.
Last Answer : b) Marchantia
Description : Disadvantages of natural vegetative propagation includes a) lack of dispersal mechanisms b) no fertilization is involved c) area is quickly colonized d) daughter plants can grow quickly
Last Answer : a) lack of dispersal mechanisms
Description : What is Melanin ?
Last Answer : Melanin is a type of pigment. It is located under human skin and determines the color of human skin. If the amount of melanin is high then the color of the skin becomes black and if the amount is low ... pale. The amount of melanin in the body can be controlled to some extent if away from the sun.
Last Answer : The main function of melanin in the body is to protect the body from the harmful effects of sunlight.
Description : Melanin pigment protects from which of the following radiations ?
Last Answer : Melanin pigment protects from which of the following radiations ? A. X-rays B. Infra-red rays C. Visible rays D. UV rays
Description : Melanin protects from
Last Answer : Melanin protects from A. UV rays B. Visible rays C. Infrared rays D. X-rays
Description : The brown-black pigment of the skin that is transferred to other epidermal cells and gives the skin its color is called A. albumin B. collagen C. keratin D. melanin
Last Answer : Ans: D
Description : Grey hair is caused due to – (1) aging of epidermal cells (2) death of dermal cells (3) loss of sebum in epidermal cells (4) loss of melanin in epidermal cells
Last Answer : (4) loss of melanin in epidermal cells Explanation: loss of melanin in epidermal cells.
Description : The pigment which gives colour to the human skin is – (1) Melanin (2) Rhodopsin (3) Iodopsin (4) Anthocyanin
Last Answer : (1) Melanin Explanation: Human skin color is primarily due to the presence of melanin in the skin. Skin color ranges from almost black to white with a pinkish tinge due to blood vessels underneath. In animals melanin pigments are derivatives of the amino acid tyrosine.