Description : The bacteria which cause dental cavities in humans break down sugars, releasing what chemical, that causes tooth destruction? a) acids b) bases c) enzymes d) monosaccharides
Last Answer : ANSWER: A -- acids
Description : Humans can digest carbohydrates in the form of starch, disaccharides and mono
Last Answer : saccharides.
Description : Cellulose and starch are polysaccharides made of glucose, but cellulose cannot be digest by human beings, why?
Last Answer : Cellulose contains beta 1,4 linkages, which cannot be digested by human enzymes.
Description : Frog is not able to digest cellulose but the rabbit can do so as rabbit has (a) Duodenum where cellulose are digested (b) Stomach which contain certain cellulose digesting bacteria (c) Caecum where cellulose digested (d) None of the above
Last Answer : (c) Caecum where cellulose digested
Description : The enzymes sucrose acts on – (1) sucrose only (2) sucrose and starch (3) all disaccharides (4) any organic monomer
Last Answer : (1) sucrose only Explanation: Sucrase enzymes are located on the brush border of the small intestine. The enzymes catalyze the hydrolysis of sucrose to its subunits fructose and glucose.
Description : Proteins are chains of _____ that sometimes function as _____. a. monosaccharaides; energy compounds b. lipids; structural materials c. amino acids; enzymes d. disaccharides; enzymes
Last Answer : c. amino acids; enzymes
Description : Disaccharides contain
Last Answer : Ans. Sucrose, Maltose, Lactose and Cellobiose
Description : Humans cannot digest carbohydrates in the form of
Last Answer : cellulose.
Description : Man can not digest cellulose due to the absence of
Last Answer : Ans. Cellulose
Description : Some animals eat their own faeces to digest cellulose again. This is known as (a) Reingestion (b) Coprophagy (c) Both (d) None
Last Answer : (c) Both
Description : Which of the following can't digest cellulose (a) Rabbit (b) Cow (c) Tiger (d) She goat
Last Answer : (c) Tiger
Description : Why Cells that carry on digestion within the cell do not partly digest themselves because they secrete their digestive enzymes into membrane-enclosed?
Last Answer : Feel Free to Answer
Description : Whcih of the following features are common to monosaccharides? (A) Contain asymmetric centres (B) Are of 2 types – aldoses and ketoses (C) Tend to exist as ring structures in solution (D) Include glucose, galactose and raffinose
Last Answer : C
Description : . Monosaccharides are classified according to : (a) the number of carbon atoms in the molecule. (b) whether they contain an aldehyde or a ketone group (c) their configurational relationship to glyceraldehyde. (d) all of the above
Last Answer : all of the above
Description : Vegetables are easily perishable because of their high content of - (1) sugars (2) water (3) vitamins (4) enzymes
Last Answer : (2) water Explanation: The perishability of food items depends a lot on their water content. High moisture decides their perishability or longer shelf life. Perishable food includes fruits and vegetables, fresh meat ... , Tomato: 94 per cent, etc. Even potato contains about 79 per cent water in it.
Description : Vegetables are easily perishable because of their high content of (1) sugars (2) water (3) vitamins (4) enzymes
Last Answer : water
Description : Because of their rumen, sheep and cattle can digest what, that monogastrics, such as humans con not?
Last Answer : Forage, roughage
Description : The growth of seedling plants after transplantation will not always be proper because (a) New soil may not contain the required minerals (b) During transplantation root hairs get damaged (c) Roots cannot penetrate deep into the soil (d) Of all factors stated above
Last Answer : Ans:(d)
Description : In I-cell disease, lysosomal enzymes (A) Are not synthesised (B) Are inactive (C) Lack signal sequence (D) Cannot reach lysosomes
Last Answer : Answer : B
Description : In making beer, in the process of ____ barley grains are steeped in water while naturally occurring enzymes digest the starch to simpler carbohydrates. a. steeping b. mashing c. maltng d. worting
Last Answer : c. maltng
Description : Enzymes involved in the breakdown of nucleotides into sugars and bases? -Biology
Last Answer : answer:
Description : Naturally occurring ____ play a role in food coloring. a. enzymes c. pigments b. sugars d. carbohydrates
Last Answer : c. pigments
Description : What would be some possible effects, positive or negative, on life expectancy, if you genetically altered humans and animals to be able to digest and incorporate plastic into their physical makeup?
Last Answer : Erections lasting longer than 4 hours?
Description : Are humans able to digest poppyseeds?
Last Answer : If you eat enough you can get high.
Description : Plants have ____________ while animals lack it. (a) Starch (b) Cellulose (c) Protein (d) Fat
Last Answer : Ans:(b)
Description : Browning of paper in old books is caused by – (1) frequent use (2) lack of aeration (3) collection of dust (4) oxidation of cellulose
Last Answer : (4) oxidation of cellulose Explanation: Foxing is a term describing the age-related spots and browning seen on vintage paper documents such as books, postage stamps, certificates, and so forth. It ... oxidation of cellulose or the effect on certain papers of the oxidation of iron, copper, etc.
Description : Select the correct combination of the statements (i-iv) regarding the characteristics of certain organisms. (i) Methanogens are archaebacteria which produce methane in marshy areas. (ii) Nostoc is a filamentous blue-green alga which fixes ... iii) (c) (ii), (iii) and (iv) (d) (i), (ii) and (iv).
Last Answer : (d) (i), (ii) and (iv)
Description : Browning of paper in old books is caused by (1) frequent use (2) lack of aeration (3) collection of dust (4) oxidation of cellulose
Last Answer : oxidation of cellulose
Description : What kind of sugars do honey contain ?
Last Answer : Honey contains a monounsaturated sugar.
Description : Which of the following statements is correct? (A) a nucleo protein usually contain deoxy sugars of the hexose type (B) Nucleoproteins are usually absent from the cytoplasm (C) Nucleoproteins usually are present in the nucleus only (D) Nucleoproteins usually occur in the nucleus and cytoplasm
Last Answer : Answer : D
Description : The statement that is NOT correct is (a) The breaking of complex and big molecules into simpler and smaller molecules by micro-organisms is called fermentation. (b) Whisky contains high ... d) Alcoholic fermentation involves the conversion of sugars into alcohol by the use of micro-organisms.
Description : What are disaccharides? Give some examples. -Biology
Description : Name reducing disaccharides.
Last Answer : Lactose and maltose.
Description : Name some important disaccharides.
Last Answer : Sucrose, lactose, maltose.
Description : The enzyme which converts starch into the disaccharides maltose is (A) Diastase (B) Maltase (C) Yeast (D) None of these
Last Answer : (A) Diastase
Description : All chiral D-sugars rotate plane-polarized light : (a) clockwise (b) counterclockwise (c) +20.0° (d) in a direction that cannot be predicted but must be determined experimentally
Last Answer : in a direction that cannot be predicted but must be determined experimentally
Description : Of the following risk factors, which is considered modifiable? a) Diabetes mellitus While diabetes mellitus cannot be cured, blood sugars and symptomatology can be managed through healthy heart living. ... risk factor. d) Increasing age Increasing age is considered a non-modifiable risk factor.
Last Answer : a) Diabetes mellitus While diabetes mellitus cannot be cured, blood sugars and symptomatology can be managed through healthy heart living.
Description : Which one of the following pairs of food components in humans reaches the stomach totally undigested ? (a) Starch and fat (b) Fat and cellulose (c) Starch and cellulose (d) Protein and starch
Last Answer : b) Fat and cellulose
Description : What are the commonest monosaccharides? -Biology
Description : The distinguishing test between monosaccharides and dissaccharide is (A) Bial’s test (B) Seliwanoff’s test (C) Barfoed’s test (D) Hydrolysis test
Description : The distinguishing test between monosaccharides and dissaccharides is (A) Bial’s test (B) Selwanoff’s test (C) Barfoed’s test (D) Hydrolysis test
Description : In the diet of a diabetic patient, the recommended carbohydrate intake should preferably be in the form of CARBOHYDRATES AND CARBOHYDRATE METABOLISM 11 (A) Monosaccharides (B) Dissaccharides (C) Polysaccharides (D) All of these
Description : The general formula of monosaccharides is (A) CnH2nOn (B) C2nH2On (C) CnH2O2n (D) CnH2nO2n
Last Answer : A
Description : Monosaccharides that are used as energy source
Last Answer : Ans. Glucose and fructose
Description : Monosaccharides possess reducing property due to the presence of
Last Answer : Ans. Free aldehyde or keto group
Description : An example of a natural polymer formed by many units of monosaccharides is
Last Answer : starch.
Description : Sucrose consists of what monosaccharides?
Last Answer : Glucose + fructose.
Description : What are the component monosaccharides of lactose?
Last Answer : Galactose and glucose.
Description : Name some important monosaccharides.
Last Answer : Glucose, fructose, galactose, mannose.