Description : Assertion : - Circulatory system of cockroach does not contain any capillary. Reason :- Blood of cockroach does not contain any respiratory pigment.
Last Answer : Assertion : - Circulatory system of cockroach does not contain any capillary. Reason :- Blood of cockroach does not contain ... . A. A B. B C. C D. D
Description : The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of
Last Answer : The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of A ... B. Ammonia C. Patassium urate D. Urea
Description : The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of (a) urea (b) calcium carbonate (c) ammonia (d) potassium urate.
Last Answer : (d) potassium urate.
Description : Respiratory pigment in cockroach is
Last Answer : Respiratory pigment in cockroach is A. Hemoglobin B. Hemocyanin C. Hemoerythrin D. None of these
Description : The respiratory membranes facilitates the exchange of respiratory gases through diffusion . Oxygen enters the deoxygenated blood through diffusion bec
Last Answer : The respiratory membranes facilitates the exchange of respiratory gases through diffusion . Oxygen enters the ... it 40mm Hg and 46 mm Hg respectively
Description : Assertion` :` Lymph is a colourless fluid containing specialised lymphocytes which are responsible for the immune responses of the body. Reason `:` Ex
Last Answer : Assertion` :` Lymph is a colourless fluid containing specialised lymphocytes which are responsible for the ... . If both Assertion & Reason are false.
Description : Exchange of oxygen, carbon dioxide, nutrients and waste products from mother to fetus occurs through diffusion across the: a) chorionic villi (pron: core-e-on-ick villi) b) endometrium c) corpus luteum d) colostrum
Last Answer : ANSWER: A -- CHORIONIC VILLI
Description : Assertion `:-` In fish ammonia is excreted by diffusion through gill surface as ammonium ions. Reason `:-` Some amount of urea may be retained in the
Last Answer : Assertion `:-` In fish ammonia is excreted by diffusion through gill surface as ammonium ions. Reason ` ... . D. If both Assertion & Reason are false.
Description : Assertion `:` Faeces are brown coloured. Reason `,` Faeces contain brown pigment named sterocobilin formed by reduction of bile pigment.
Last Answer : Assertion `:` Faeces are brown coloured. Reason `,` Faeces contain brown pigment named sterocobilin ... D. If both Assertion & Reason are false.
Description : Assertion :- The young one of cockroach does not look like adult cockroach. Reason :- the mouth parts of young cockroach are not well developed like a
Last Answer : Assertion :- The young one of cockroach does not look like adult cockroach. Reason :- the mouth parts of young ... cockroach. A. A B. B C. C D. D
Description : Assertion : - Cockorach undergoes many moulting in their development stage. Reason : - Cockroach exhibits gradual metamorphosis.
Last Answer : Assertion : - Cockorach undergoes many moulting in their development stage. Reason : - Cockroach exhibits gradual metamorphosis. A. A B. B C. C D. D
Description : Copper containing respiratory pigment in blood of molluscs.
Last Answer : Give one word for the following: Copper containing respiratory pigment in blood of molluscs.
Description : Is there a respiratory pigment in the annelid blood?
Last Answer : The blood in beings of the phylum Annelida contains the respiratory pigment hemoglobin (the same found in chordates) and other pigments too.
Description : The movement of glucose into a cell occurs by a. Facilitated diffusion. b. Active transport. c. Simple diffusion. d. Phospholipid exchange.
Last Answer : b. Active transport.
Description : Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above ... Both processes can happen together because the diffusion coefficient of water and CO2 is different
Last Answer : (d) Both processes can happen together because the diffusion coefficient of water and CO2 is different
Description : Assertion: Black soils are black in colour due to diffusion of iron in crystalline and metamorphic rocks. Reason: They develop deep cracks during hot weather Options: (a) Both A and R are true and R is the correct explanation of ... of A.(c) A is true but B is false. (d) A is false but R is true.
Last Answer : (d) A is false but R is true.
Description : If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is (a) coelomic fluid (b) haemolymph (c) slimy mucus (d) excretory fluid.
Last Answer : (a) coelomic fluid
Description : 'Diffusion hypoxia’ is likely to occur only after use of nitrous oxide because it: A. Is a respiratory depressant B. Has low blood solubility and is used in high concentration C. Is a very potent anaesthetic D. Interferes with diffusion of oxygen into the tissues
Last Answer : B. Has low blood solubility and is used in high concentration
Description : In single celled organisms diffusion is sufficient to meet all their requirements of food, exchange of gases or removal of wastes but it is not in case of multicellular organisms. Explain the reason for this difference. -Biology
Last Answer : Unicellular organisms can absorb sufficient oxygen because of its complete contact with the atmosphere, but in multicellular organisms the rate of absorption and diffusion becomes very less because all ... of oxygen to sustain life processes which cannot be fulfilled by the process of diffusion.
Description : Assertion (A) : Severe Acute Respiratory Syndrome (SARS) originated in China. Reason `(R)`: China is the most populated country of the world.
Last Answer : Assertion (A) : Severe Acute Respiratory Syndrome (SARS) originated in China. Reason `(R)`: China ... D. If both the assertion and reason are false
Description : Assertion (A): Many visitors to the hills suffer from skin and respiratory allergy problems. Reason (R): Conifer trees produce a large quantity of win
Last Answer : Assertion (A): Many visitors to the hills suffer from skin and respiratory allergy problems. Reason ( ... . If both the assertion and reason are false
Description : Assertion `:-` Emphysema is a chornnic disorder in which alveolar walls are damaged due to which respiratory surface decreases. Reason `:-` One of the
Last Answer : Assertion `:-` Emphysema is a chornnic disorder in which alveolar walls are damaged due to which ... D. If both Assertion & Reason are false.
Description : Assertion `:-` Pneumotaxic centre can moderate the functions of the respiratory rhythm centre. Reason `:-` Neural signal from pneumotoxic centre can r
Last Answer : Assertion `:-` Pneumotaxic centre can moderate the functions of the respiratory rhythm centre. Reason `:- ... D. If both Assertion & Reason are false.
Description : Respiratory pigment in insects is
Last Answer : Respiratory pigment in insects is A. Hemocyannin B. Hemoglobin C. Hemoerythrin D. None of these
Description : Hemocyanin is a respiratory pigment found in
Last Answer : Hemocyanin is a respiratory pigment found in A. Echinoderm B. Annelids C. Insects D. Architeuthis
Description : Respiratory pigment Fe containing but red in colour `:-`
Last Answer : Respiratory pigment Fe containing but red in colour `:-` A. Haemocyanin (Molluscas) B. Haemoglobin ... ) C. Chlorocruorin (Some annelids) D. None
Description : Cu containing respiratory pigment is `:`
Last Answer : Cu containing respiratory pigment is `:` A. Haemoglobin B. Haemocyanin C. Chlorocruorin D. All the above
Description : What are respiratory pigments? What is the respiratory pigment present in some arthropods? Which is the analogous molecule in humans?
Last Answer : Respiratory pigments are molecules able to carry oxygen and other respiratory gases present in circulatory fluids. In crustaceans and in arachnids hemocyanin is the respiratory pigment. In humans the analogous pigment is hemoglobin.
Description : Which one of the following is the respiratory pigment in man? (1) Haernocyanin (2) Haemoerythrin (3) b-Carotene (4) Haemoglobin
Last Answer : (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.
Description : Haemoglobin is a type of (a) carbohydrate (b) respiratory pigment (c) vitamin (d) skin pigment.
Last Answer : (b) decrease in number
Description : In which following is respiratory pigment in human
Last Answer : Hemoglobin
Description : Which one of the following is the respiratory pigment in man ? (1) Haemocyanin (2) Haemoerythrin (3) b-Carotene (4) Haemoglobin
Last Answer : Haemoglobin
Description : Cockroach cannot survive in the water because its respiratory organ is - (1) Gill (2) Trachea (3) Book lung (4) Pulmonary Sac
Last Answer : (2) Trachea Explanation: In tetrapod anatomy, the trachea or windpipe, is a tube that connects the pharynx and larynx to the luhgs, allowing the passage of air. It is lined with pseudo- ... larynx and then the pharynx where it can be either swallowed into the stomach or expelled as phlegm.
Description : In which one of the following animals, is skin a respiratory organ? (1) Cockroach (2) Frog (3) Shark (4) Whale
Last Answer : (2) Frog Explanation: Frog skin is water permeable, this means it can let water in and out. Frogs don't often drink with their mouths, they absorb water through their skin.
Description : Cockroach cannot survive in the water because its respiratory organ is (1) Gill (2) Trachea (3) Book lung (4) Pulmonary Sac
Last Answer : Trachea
Description : Assertion `:-` The amount of `CO_(20` that can diffuse through the diffusion membrane per unit differnece in partial pressure is much higher compared
Last Answer : Assertion `:-` The amount of `CO_(20` that can diffuse through the diffusion membrane per unit ... . D. If both Assertion & Reason are false.
Description : Given statement is true or false Statement: Actual site of diffusion of `O_(2) and CO_(2)` between blood and atmospheric air is exchange part.
Last Answer : Given statement is true or false Statement: Actual site of diffusion of `O_(2) and CO_(2)` between blood and atmospheric air is exchange part.
Description : Assetion: Insertion of recombinant DNA within the coding sequence of `beta-`galactosidase result n colourless colonies. Reason : Presence of insert re
Last Answer : Assetion: Insertion of recombinant DNA within the coding sequence of `beta-`galactosidase result n ... D. If both assertion and reason are false
Description : Assertion : Meiosis produces four genetically dissimilar cells. Reason : Crossing over or gene exchange takes place in meiosis.
Last Answer : Assertion : Meiosis produces four genetically dissimilar cells. Reason : Crossing over or gene exchange ... . If both Assertion & Reason are false.
Description : In arthropods why isn't gas exchange done through cutaneous diffusion?
Last Answer : In arthropods the impermeability of the exoskeleton makes the passage of gases difficult. In addition the new methods of respiration present in arthropods were preserved by evolution because they were more efficient for those animals.
Description : Respiratory acidosis is that in which the blood pH is low due to increased retention of carbon dioxide caused by the lowering of the respiratory frequency or by pulmonary diseases that impair ... caused by metabolic disturbances that increase the concentration of bases (alkalis) in the blood.
Last Answer : Where are the chemoreceptors that detect the acidity of the blood and trigger the respiratory compensation located?
Description : The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part (A, B, C or D) correctly identified along with its function. ... Exchange of O2 and CO2 takes place here (d) B : Red blood cells - Transport of CO2 mainly
Last Answer : (b) A : Alveolar cavity - Main site of exchange of respiratory gases
Description : In cockroach which of the following help in exchange of gasas ?
Last Answer : In cockroach which of the following help in exchange of gasas ? A. Spiracles B. Respiration tubule C. Tracheoles D. Abdomen
Description : In animals that do not present the circulatory system the transport of substances occurs by cell to cell diffusion. The blood is a fundamental means of substance transport for larger animals ... there are tissues distant from each other and from the environment thus making diffusion impossible.
Last Answer : What are the two types of circulatory systems?
Description : Assertion (A) `:` Replication and transcription occur in the nucleus but translation occurs in the cytoplasm. Reason (R ) `:` m-RNA is transferred fro
Last Answer : Assertion (A) `:` Replication and transcription occur in the nucleus but translation occurs in the ... D. If both assertion and reason are false.
Description : Assertion : Normally monospermy occurs in most of animals . Reason : Vitelline membrane of ovum checks polyspermy .
Last Answer : Assertion : Normally monospermy occurs in most of animals . Reason : Vitelline membrane of ovum checks ... D. If both Assertion & Reason are False.
Description : Assertion : Regular cyclic menstruation is an indicator of normal reproductive phase . Reason : It occurs throughout the reproductive phase of normal
Last Answer : Assertion : Regular cyclic menstruation is an indicator of normal reproductive phase . Reason : It occurs ... D. If both Assertion & Reason are False.
Description : Assertion : Ovulation occurs on the `14^(th)` day of menstrual cycle in a human female . Reason : The high level of estrogen is controlled 2 or 3 days
Last Answer : Assertion : Ovulation occurs on the `14^(th)` day of menstrual cycle in a human female . Reason : ... False . D. If both Assertion & Reason are False.
Description : Assertion : In post natal life , oocyte development occurs in mature follicle Reason : After ovulation , Graafian follicle transforms in corpus luteum
Last Answer : Assertion : In post natal life , oocyte development occurs in mature follicle Reason : After ovulation , ... D. If both Assertion & Reason are False.