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Which statement about Krebs cycle is correct? i) The waste product of the Krebs cycle is oxygen ii) Complete oxidation of food takes place.Krebs cycle involves step by step breakdown of pyruvic acid/lactic acid to produce ATP and CO2. iii) Electron carriers are produced by the Krebs cycle for the transportation of electron chain. iv) None of the above

Complete oxidation of food takes place. Krebs cycle involves step by step breakdown of pyruvic acid/lactic acid to produce ATP and Carbon... View Article

A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because (a) the batsman did not hit the ball hard enough. (b) velocity is proportional to the force exerted on the ball. (c) there is a force on the ball opposing the motion. (d) there is no unbalanced force on the ball, so the ball would want to come to rest.

Option (C) is the right answer. The ball slows down and comes to rest due to opposing forces of air resistance and frictional force on the ball... View Article

 Consider the following figure of line MN. Say whether the following statements are true or false in the context of the given figure: (a) Q, M, O, N, P are points on the line . (b) M, O, N are points on a line segment . (c) M and N are end points of a line segment . (d) O and N are end points of the line segment . (e) M is one of the end points of a line segment . (f) M is the point on ray OP. (g) Ray OP is different from ray OP. (h) Ray OP same as ray OM. (i) Ray OM is not opposite to ray OP. (j) O is not an initial point of NP and NM. (k) N is the initial point of NP and NM.

(a) The given statement is True (b)The given statement is True (c)The given statement is True (d) The given statement is False O and N are... View Article

Following is the list of temperatures of five places in India, on a particular day of the year. Place Temperature i) Siachin 10°C below 0 Degree C ii) Shimla 2°C below 0Degree C iii) Ahmedabad 30°C above 0 Degree C iv) Delhi 20°C above 0 Degree C v) Srinagar 5°C below 0Degree C (a) Write the temperature of these places in the form of integers in the blank column. (b) Following is the number line representing the temperature in degree Celsius. Plot the name of the city against its temperature. (c) Which is the coolest place? (d) Write the names of the place where temperature are above 10°C.

(a) Siachin→ -10°C Shimla→ -2°C Ahmedabad→ 30°C Delhi→ 20°C Srinagar→ -5°C (b) (c) The coolest place is where the temperature is minimum... View Article