Which one of the following is the respiratory pigment in man? (1) Haernocyanin (2) Haemoerythrin (3) b-Carotene (4) Haemoglobin

Which one of the following is the respiratory pigment in man? (1) Haernocyanin (2) Haemoerythrin (3) b-Carotene (4) Haemoglobin
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(4) Haemoglobin Explanation: A respiratory pigment is a molecule, such as hemoglobin in humans, which increases the oxygencarrying capacity of the blood. The four most common invertebrate respiratory pigments are hemoglobin, haemocyanin, haemerythrin and chlorocruorin.
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Which one of the following is the respiratory pigment in man ? (1) Haemocyanin (2) Haemoerythrin (3) b-Carotene (4) Haemoglobin

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Which of the following is true with reference to blood platelets? (1) They have prominent nuclei (2) They are involved in phagocytosis (3) They have a pigment called haemoglobin (4) They are also called thrombocytes

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Copper containing respiratory pigment in blood of molluscs.

Description : Copper containing respiratory pigment in blood of molluscs.

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What are respiratory pigments? What is the respiratory pigment present in some arthropods? Which is the analogous molecule in humans?

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Description : In which following is respiratory pigment in human

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Description : β-Carotene, precursor of vitamin A, is oxidatively cleaved by (A) β-Carotene dioxygenase (B) Oxygenase (C) Hydroxylase (D) Transferase

Last Answer : Answer : A

Non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin

Description : Non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin

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The orange colour of carrot is because of – (1) it grows in the soil (2) Carotene (3) it is not exposed to sun-light (4) the entire plant is orange in colour

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The colour of the carrots is due to the presence of – (1) Carotene (2) Chlorophyll (3) Phycocyanin (4) Phycoerythirn

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Last Answer : (1) Carotene Explanation: Carotenes are photosynthetic pigments that are responsible for the orange colour of the carrot, for which this class of chemicals is named. Some carrots are yellow due to ... are also responsible for the orange (but not all of the yellow) colours in dry foliage.

The colotr of cow's milk is slightly yellow due to the presence of - (1) Xanthophyll (2) Riboflavin (3) Ribulose (4) Carotene

Description : The colotr of cow's milk is slightly yellow due to the presence of - (1) Xanthophyll (2) Riboflavin (3) Ribulose (4) Carotene

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Spinach leaves are rich source of---- A. Amino acid B. Iron (Answer) C. Vitamin E D. Carotene

Description : Spinach leaves are rich source of---- A. Amino acid B. Iron (Answer) C. Vitamin E D. Carotene

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Yellow colour of cow milk is due to : D A. Riboflavin B. Lactose C. Casein D. Carotene

Description : Yellow colour of cow milk is due to : D A. Riboflavin B. Lactose C. Casein D. Carotene

Last Answer : Carotene

Yellow colour of cow milk is due to : D A. Riboflavin B. Lactose C. Casein D. Carotene

Description : Yellow colour of cow milk is due to : D A. Riboflavin B. Lactose C. Casein D. Carotene

Last Answer :  Carotene

Red colour of carrot is due to : a. Lycopene b. Carotene c. Anthocyanin d. Propanene

Description : Red colour of carrot is due to : a. Lycopene b. Carotene c. Anthocyanin d. Propanene

Last Answer : Carotene

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Description : Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements. (1) Vitamin A derivatives are formed from carotene. (2) The photopigments are embedded in the membrane discs of the inner ... (1) and (3) (c) (2), (3) and (4) (d) (1) and (2)

Last Answer : (b) (1) and (3)

Which of the following pigments acts as a reaction- centre during photosynthesis? (a) Carotene (b) Phytochrome (c) P700 (d) Cytochrome

Description : Which of the following pigments acts as a reaction- centre during photosynthesis? (a) Carotene (b) Phytochrome (c) P700 (d) Cytochrome

Last Answer : (c) P700

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Description : During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by (a) carotene (b) cytochrome (c) leghaemoglobin (d) xanthophyll

Last Answer : (c) leghaemoglobin

Pick out the wrong statement. (A) Loamy soil is the best soil for vigorous plant growth, while the clayey soil is solid and hence the plant roots penetrate with difficulty (B) Large excess use of nitrogenous fertiliser in land causes the problem of diarrhoea and cyanosis (C) Application of large excess of Potassic fertiliser in soil increases the valuable carotene in fruits and vegetables (D) Cereal crops grown on alkaline soil absorb higher amount of fluorides thereby spreading fluorosis

Description : Pick out the wrong statement. (A) Loamy soil is the best soil for vigorous plant growth, while the clayey soil is solid and hence the plant roots penetrate with difficulty (B) Large ... vegetables (D) Cereal crops grown on alkaline soil absorb higher amount of fluorides thereby spreading fluorosis

Last Answer : (C) Application of large excess of Potassic fertiliser in soil increases the valuable carotene in fruits and vegetables

Yellow color of turmeric is due to — a. Curcamin b. Lycopene c. Casin d. Carotene

Description : Yellow color of turmeric is due to — a. Curcamin b. Lycopene c. Casin d. Carotene

Last Answer : a. Curcamin

The organism commonly used for the production of carotene is/ are β A- Phycomycesblakesleeanus B- Phycomycesblakesleeanus C- Blakesleatrispora D- all of these

Description : The organism commonly used for the production of carotene is/ are β A- Phycomycesblakesleeanus B- Phycomycesblakesleeanus C- Blakesleatrispora D- all of these

Last Answer : all of these

Spinach leaves are rich source of (1) Vitamin A (2) Iron (3) Carotene (4) Vitamin E

Description : Spinach leaves are rich source of (1) Vitamin A (2) Iron (3) Carotene (4) Vitamin E

Last Answer : (2) Iron

Anti-oxidant activity is present in (A) β-Carotene (B) Retinol (C) Retinoic acid (D) All of these

Description : Anti-oxidant activity is present in (A) β-Carotene (B) Retinol (C) Retinoic acid (D) All of these

Last Answer : (A) β-Carotene

β-Carotene, precursor of vitamin A, is oxidatively cleaved by (A) β-Carotene dioxygenase (B) Oxygenase \ (C) Hydroxylase (D) Transferase

Description : β-Carotene, precursor of vitamin A, is oxidatively cleaved by (A) β-Carotene dioxygenase (B) Oxygenase \ (C) Hydroxylase (D) Transferase

Last Answer : (A) β-Carotene dioxygenase