Please select a subject first
Advertisements
Advertisements
Exchange of calcium between bone and extracellular fluid takes place under the influence of certain hormones. What will happen if very less amount of Ca++ is in the extracellular fluid?
Concept: undefined >> undefined
Rahul exercises regularly by visiting a gymnasium. Of late he is gaining weight. What could be the reason? Choose the correct answer and elaborate.
Concept: undefined >> undefined
Advertisements
Radha was running on a treadmill at a great speed for 15 minutes continuously. She stopped the treadmill and abruptly came out. For the next few minutes, she was breathing heavily/fast. Answer the following questions.
What happened to her muscles when she did strenuously exercised?
Concept: undefined >> undefined
Radha was running on a treadmill at a great speed for 15 minutes continuously. She stopped the treadmill and abruptly came out. For the next few minutes, she was breathing heavily/fast. Answer the following questions.
How did her breathing rate change?
Concept: undefined >> undefined
What is the source of energy for muscle contraction?
Concept: undefined >> undefined
Calcium ion concentration in blood affects muscle contraction. Does it lead to tetany in certain cases? How will you correlate fluctuation in blood calcium with tetany?
Concept: undefined >> undefined
Explain sliding filament theory of muscle contraction with neat sketches.
Concept: undefined >> undefined
Discuss the role of Ca2+ ions in muscle contraction. Draw neat sketches to illustrate your answer.
Concept: undefined >> undefined
How does a muscle shorten during its contraction and return to its original form during relaxation?
Concept: undefined >> undefined
What is the basis of classification of algae?
Concept: undefined >> undefined
Write a note on the economic importance of algae.
Concept: undefined >> undefined
Explain briefly the following term with a suitable example:
Isogamy
Concept: undefined >> undefined
Differentiate between the following:
Red algae and Brown algae
Concept: undefined >> undefined
Differences between racemose and cymose inflorescence.
Concept: undefined >> undefined
Define the term inflorescence.
Concept: undefined >> undefined
Answer the following:
What is the function of nephridia?
Concept: undefined >> undefined
How many types of nephridia are found in earthworm based on their location?
Concept: undefined >> undefined
Answer in one word or one line.
How many spermathecae are found in earthworm?
Concept: undefined >> undefined
Draw a labelled diagram of the reproductive organs of an earthworm
Concept: undefined >> undefined
Distinguish between the following - Prostomium and peristomium
Concept: undefined >> undefined
