Red muscle fibres
I. perform slow and sustained contractions for long periods without fatigue.
II. Depend mainly on anaerobic glycolysis.
III. Carry out aerobic contraction without accumulating much lactic acid
IV. Perform faster contraction rate.
Choose the correct option.

Assertion : Pigeons and kites can fly for long period without undergoing fatigue. Reason : These birds have white muscle fibres which undergo slow and sustained contraction for long period.

What is/are the function (s) of oxytocin hormone? I. Ejection of milk from mammary glands. II.Contraction of uterus during child birth. III. Maintenance of corpus luteum. IV. Stimulates reproductive system. Choose the correct option.

Consider the following statements regarding the digestion and absorption of food in humans. I. Antipellagra vitamin is nicotinamide which is present in milk, yeast, meat , leafy vegetable and whole grains. II. Deficiency of vitamin thiamin causes loss of appetite, muscle depreciation, fatigue and mental confusion. III. Prolonged deficiency of tocopherol reduces reproductive capacity in human beings. IV. Gastrovascular cavity performs both functions, i.e., digestion and distribution of nutrients. Choose the correct option accordingly.

Read the following statements is context to muscle tissue and choose the correct answer . (i) Excessive exercise results in anaerobic Respiration and forms lactic acid . (ii) As per sliding filament theory of muscle contraction, the filament that moves to shorten a muscule is actin . (iii) The muscles primarily involved in locomotion is striated muscles .

Read the following statements is context to muscle tissue and choose the correct answer . (i) Excessive exercise results in anaerobic Respiration and forms lactic acid . (ii) As per sliding filament theory of muscle contraction, the filament that moves to shorten a muscule is actin . (iii) The muscles primarily involved in locomotion is striated muscles .

Read the following statements regarding muscle contraction (i) One ATP utillised for making and breaking of the cross bridge. (ii) The sarcomere lies between 2 Z-lines (iii) Troponin blocks the active sites in resting stage (iv) Ca^(++) ions help in unmasking active sites on HMM Choose the correct option

Read the following statements regarding muscle contraction (i) One ATP utillised for making and breaking of the cross bridge. (ii) The sarcomere lies between 2 Z-lines (iii) Troponin blocks the active sites in resting stage (iv) Ca^(++) ions help in unmasking active sites on HMM Choose the correct option

Read the following statements regarding muscle contraction (i) One ATP utillised for making and breaking of the cross bridge. (ii) The sarcomere lies between 2 Z-lines (iii) Tropomysin blocks the active sites in resting stage (iv) Ca^(++) ions help in unmasking active sites on actin Choose the correct option

Read the following statements regarding muscle contraction (i) One ATP utillised for making and breaking of the cross bridge. (ii) The sarcomere lies between 2 Z-lines (iii) Troponin blocks the active sites in resting stage (iv) Ca^(++) ions help in unmasking active sites on HMM Choose the correct option