Latest Posts

Draw the diagram of human sperm and label its parts. Write few lines about it.

Answer: The head area or acrosome contains enzymes which help to enter the egg during fertilization. Mitochondria acts as a... View Article

State and prove converse of BPT (basic proportionality theorem)

Answer: Statement of basic proportionality theorem (BPT) According to this theorem, if a line divides any two sides of a... View Article

Choose the correct answer among the following: (1) Gastric juice contains (i) pepsin, lipase, and rennin (ii) trypsin, lipase, and rennin (iii) trypsin, pepsin, and lipase (iv) trypsin, pepsin, and renin (2) Succus entericus is the name given to (i) a junction between the ileum and large intestine (ii) intestinal juice (iii) swelling in the neck (iv) appendix

(1) Answer: (i) Gastric juice has pepsin, lipase, and rennin in it. Pepsin is secreted as pepsinogen in an inert... View Article

Edaphic factors are related to (1) Humidity (2) Soil texture (3) Rainfall (4) Wind velocity

Answer: (2) The edaphic factor is an abiotic factor related to the physical or chemical soil composition found in a... View Article

Explain about composition of urine?

Answer: Urine is a liquid waste by-product of the body that the kidneys have secreted into a process called urination... View Article

For the complex ion [Fe (CN) 6]3- , state (1) The type of hybridisation. (2) The magnetic behaviour (3) The oxidation number of the central metal atom.

Answer: Consider the complex [Fe(CN)6]−3 (a) CN is a powerful field ligand and uses inner 3d-orbitals to form a low... View Article

Give an example of fibrous and globular protein.

Answer: They are two types of protein molecules fibrous proteins and globular proteins. Fibrous proteins They are insoluble and elongated... View Article

Botanical names of Jowar and Rice are respectively (1) Oryza sativa and Pennisetum typhoides (2) Sorghum vulgare and Oryza sativa (3) Triticum aesativum and Pennisetum tyuphoides (4) Oryza sativa and Sorghum vulgare

Answer: (2) Sorghum Vulgare is a species of monocotyledonous plant belonging to the Poaceae family, commonly known as Jowar. It... View Article

Siliqua fruit is characteristic of family (1) Poaceae (2) Fabaceae (3) Brassicaceae (4) Asteraceae.

Answer: (3) Siliqua fruit develops from bi-carpellary, syncarpous, superior ovary initially one chambered but subsequently becomes two-chambered due to the... View Article

Find the number of all onto functions from the set {1,2,3,….,n} to itself

Answer: Onto function could be explained by considering two sets, Set A and Set B, which consist of elements. If... View Article

Balbiani rings are sites of (1) Lipid synthesis (2) Nucleotide synthesis (3) Polysaccharide synthesis (4) RNA and protein synthesis

Answer: (4) A Ring of Balbiani is a large puff of chromosome. Balbianirings are diffused uncoiled polytene chromosome regions which... View Article

Two plane wavefronts of light, one incident on a thin convex lens and another on the refracting face of a thin prism. After refraction at them, the emerging wavefronts respectively become (1) Plane wavefront and plane wave front (2) Plane wavefront and spherical wavefront (3) Spherical wavefront and plane wavefront (4) Elliptical wavefront and spherical wavefront

Answer: (3) As the waves reach the lens, the center of the wave first meets the glass and this part... View Article

Define reflex arc and its component.

Answer: Reflex or a reflex action is an involuntary action in response to a stimulus. This is a spontaneous action... View Article

Describe the various types of placentations found in flowering plants.

Placentation – Arrangement of ovule within the ovary is known as placentation. Various types of placentations found in flowering plants... View Article

Indane gas is a mixture of____________. (1) Butane and hydrogen (2) Butane and oxygen (3) Butane and propane (4) Methane and oxygen

Answer: (3) Indane Gas is a liquefied petroleum gas (LPG), main constituents of these gases are ;propane, butane, propylene, butylene,... View Article

Form the greatest and the smallest 3? digit numbers using any three different digits with the condition that digit 6 is always at the unit place.

Answer: The condition to write the greatest and smallest 3-digit number is that three different digits are that 6 is... View Article

Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.

Answer: The gas thus formed is an effervescent carbon dioxide gas when calcium carbonate reacts with hydrochloric acid. The carbon... View Article

«
1
…
4,540
4,541
4,542
4,543
4,544
…
5,472
»