Description : Retina contains this photosensitive pigment: (A) Rhodopsin (B) Opsin (C) Retinol (D) Melanin
Last Answer : Answer : A
Description : Photosensitive compound in human eye is made up of (a) opsin and retinol (b) transducin and retinene (c) guanosine and retinol (d) opsin and retinal.
Last Answer : (d) opsin and retinal.
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.
Description : The pigment which gives colour to the human skin is (1) Melanin (2) Rhodopsin (3) Iodopsin (4) Anthocyanin
Last Answer : Melanin
Description : Retina contains this photo sensitive pigment. (A) Rhodopsin (B) Opsin (C) Retinol (D) Malanin
Description : The non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin
Description : On exposure to light rhodopsin forms (A) All trans-retinal (B) Cis-retinal (C) Retinol (D) Retinoic acid
Description : Non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin
Description : Which one of the following is the correct difference between rod cells and cone cells of our retina? Rod cells Cone cells (a) Overall Vision in poor Colour vision function light and detailed ... of retina all over retina (c) Visual acuity High Low (d) Visual pigment Iodopsin Rhodopsin contained
Last Answer : (a) Overall Vision in poor Colour vision function
Description : Are there any photosensitive epilepsy glasses? Where can l buy a pair?
Last Answer : Have you found what you were looking for? Because photosensitive sunglasses are hard to find but I think you can get these type of sunglasses online at many wholesale shops like City sunglass and fashion ... have heard good reviews about them and tried one for myself, so, maybe it can help you.
Description : Photosensitive compound int eh human eye which is composed of a protein and an aldehyde of vitamin A is respectively
Last Answer : Photosensitive compound int eh human eye which is composed of a protein and an aldehyde of vitamin A is respectively
Description : In laser printers, printing is achieved by deflecting laser beam on to __________ surface of a drum. A. Magnetic B. Electric C. Photosensitive D. None of the Above
Last Answer : C. Photosensitive
Description : Figure 'C' shown in the illustration represents a _________. EL-0078 A. silicon controlled rectifier B. light emitting diode C. photosensitive diode D. Zener diode
Last Answer : Answer: C
Description : Figure 'D' shown in the illustration represents a _________. EL-0067 A. silicon controlled rectifier B. light emitting diode C. photosensitive diode D. Zener diode
Last Answer : Answer: B
Description : Which of the following materials is sensitive to light? a. Photoresist b. Photosensitive c. Light Sensitive d. Maser
Last Answer : a. Photoresist
Description : What do you call the electrical conduction in a photosensitive material which is not exposed to radiation? A. Dark conductance B. Pure conductance C. Black out D. Super conductance
Last Answer : A. Dark conductance
Description : Which of the following terms refers to the use of compressed gasses to drive (power) the robot device? a) pneumatic b) hydraulic c) piezoelectric d) photosensitive
Last Answer : a) pneumatic
Description : If a tree flowers thrice in a year (Oct, Jan and July) in Northern India, it is said to be (a) photo and thermo-insensitive (b) photo and thermo-sensitive (c) photosensitive but thermo-insensitive (d) thermosensitive but photo-insensitive
Last Answer : (a) photo and thermo-insensitive
Description : Which of the following materials is sensitive to light? ∙ a. Photoresist ∙ b. Photosensitive ∙ c. Light Sensitive ∙ d. Maser
Description : The sperm producing substance of enzymatic nature of sperm lysine. In mammals it is called
Last Answer : The sperm producing substance of enzymatic nature of sperm lysine. In mammals it is called A. ... B. Hyaluronic acid C. Androgamone D. Gyanogamone
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 : 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 : MSH causes (A) Dispersal of melanin granules in melanocytes (B) Increase in melanin concentration in melanocytes (C) Decerease in melanin concentration in melanocytes (D) Increase in number of melanocytes
Last Answer : Answer : B
Description : The highest concentration of cystine can be found in (A) Melanin (B) Chondroitin sulphate (C) Myosin (D) Keratin
Last Answer : Answer : D
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 : 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 : Which of the following makes the skin layer impervious to water? (1) Collagen (2) Melanin (3) Keratin (4) Chitin
Last Answer : (3) Keratin Explanation: Keratin is a family of fibrous structural proteins. Keratin is the key structural material making up the outer layer of human skin. It is also the key structural component ... layer of the skin almost waterproof, and along with collagen and elastin, gives skin its strength.
Description : Which among the following is responsible for producing color of human skin --? A. Insulin B. Vitamin K C. Melanin (Answer) D. DNA
Last Answer : C. Melanin (Answer)
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 : Hormones thyroxine, adrenaline and the pigment melanin are formed from (a) tyrosine (b) proline (c) tryptophan (d) glycine.
Last Answer : (a) tyrosine
Description : Mast cells of connective tissue contain (a) vasopressin and relaxin (b) heparin and histamine (c) heparin and calcitonin (d) serotonin and melanin.
Last Answer : (b) heparin and histamine
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 : loss of melanin in epidermal cells
Description : The colour of human skin is produced by (1) Haemoglobin(2) Insulin (3) Adrenaline (4) Melanin
Description : Which of the following makes the skin layer impervious to water ? (1) Collagen (2) Melanin (3) Keratin (4) Chitin
Last Answer : Keratin
Description : cAMP is so called because it is formed during (A) TCA cycle (B) Urea cycle (C) Rhodopsin cycle (D) It has a cyclic structure
Description : A person deficient in Rhodopsin (visual pigment) should take -
Last Answer : A person deficient in Rhodopsin (visual pigment) should take - A. Tomatoes B. Radish C. Carrots D. Guavas
Description : $ Rhodopsin of rod cells and iodospin of cone cells of retina are proteins ! Myosine and Actin are contractile proteins
Last Answer : $ Rhodopsin of rod cells and iodospin of cone cells of retina are proteins ! Myosine and Actin are ... wrong D. If both As and R are wrong.
Description : The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the human eye, is a derivative of
Last Answer : The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the human eye, is a ... Vitamin B 1 C. Vitamin C D. Vitamin D
Description : The following form of vitamin A is used in the visual cycle: (A) Retinol (B) Retinoic acid (C) Retinaldehyde (D) Retinyl acetate
Last Answer : Answer : C
Description : Retinol and Retinol binding protein are bound with this protein: (A) Albumin (B) Prealbumin (C) α-globulin (D) β-globulin
Description : Which of the following statements regarding Vitamin A is true? (A) It is not an essential Vitamin (B) It is related to tocopherol (C) It is a component of rhodopsin (D) It is also known as Opsin
Description : Retinol and retinol –binding protein (RBP) bound with this protein: (A) Albumin (B) Prealbumin (C) α2-globulin (D) β-globulin