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Explain the term “Energy Currency”. Which substance acts as energy currency in plants and animals?
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If a person is feeling dizzy, glucose or fruit juice is given immediately but not a cheese sandwich Explain.
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When a substrate is being metabolized, why does not all the energy that released in one step. It is released in multiple steps.What is the advantage of step-wise release?
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Respiration requires O2. How did the first cells on the earth manage to survive in an atmosphere that lacked O2?
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It is known that red muscle fibres in animals can work for longer periods of time continuously. How is this possible?
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RuBP carboxylase, PEP carboxylase, Pyruvate dehydrogenase, ATPase, cytochrome oxidase, Hexokinase, Lactate dehydrogenase.
Select/choose enzymes from the list above which are involved in
- Photosynthesis
- Respiration
- Both in photosynthesis and respiration
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How does a tree trunk exchange gases with the environment although it lacks stomata?
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Which of the following cells does not exhibit phagocytotic activity?
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One of the common symptoms observed in people infected with Dengue fever is ______.
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Which one of the following types of cells lack nucleus in humans?
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Which one of the following blood cells is involved in antibody production?
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The cells involved in inflammatory reactions are ______.
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Complete the missing word in the statement given below:
______ and monocytes are phagocytic cells.
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Complete the missing word in the statement given below:
Eosinophils are associated with ______ reactions.
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State the functions of the following in blood.
Neutrophils
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State the functions of the following in blood.
Lymphocytes
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Explain the consequences of a situation in which blood does not coagulate.
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Differentiate between basophils and eosinophils
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Answer the following:
Name the major site where RBCs are formed.
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Different types of excretory structures and animals are given below. Match them appropriately and mark the correct answer from among those given below:
| Excretory structure/ organ | Animals |
| A. Protonephridia | i. Prawn |
| B. Nephridia | ii. Cockroach |
| C. Malpighian tabules | iii. Earthworm |
| D. Green gland or Antennal gland | iv. Flatworms |
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