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प्रश्न
Rewrite the food-chain given below with correct sequence.
Grasshopper– Snake– Paddyfield– Eagle– Frog
उत्तर
Ans: Paddy field– Grasshopper– Frog– Snake– Eagle.
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संबंधित प्रश्न
Given below are the end products of different reactions involving glucose. Write the appropriate end product in front of the following:
(1) Anaerobic reaction =
(2) Reaction in human muscles =
(3) Aerobic respiration
(4) Reaction in plant cells =
(5) Reaction in liver =
Why is diffusion insufficient to meet the oxygen requirements of multi-cellular organisms like humans
What processes would you consider essential for maintaining life?
Which of the following type of energy is used by living organisms to perform vital life processes? Kinetic energy, Chemical energy, Potential energy, Nuclear energy
Match the organisms given in column I with the processes given in column II:
| Column I | Column II | ||
| (i) | Leech | (a) | Holozoic nutrition |
| (ii) | Amoeba | (b) | Autotrophic nutrition |
| (iii) | Mushroom | (c) | Parasitic nutrition |
| (iv) | Green plant | (d) | Saprophytic nutrition |
Match the terms in column I with their uses in column II
| Column I | Column II |
| (i) Heart | (a) Pipes for transport in humans |
| (ii) Arteries and Veins | (b) Clotting of blood |
| (iii) Xylem vessels | (c) Pumping organ |
| (iv) RBC | (d) Water transport in plants |
| (v) Platelets | (e) Carrier of oxygen |
A person lives near a forest. Make a list of four items which he can get from the forest to meet his daily needs.
Skin : Keratin : : Blood : ____________
Complete the following flowchart.
Fill in the blank and explain the statement.
Our muscle cells perform ______ type of respiration during exercise.
Write definition.
Nutrition.
Write definition
Nutrients
Write the definition.
Proteins
Distinguish between Glycolysis and TCA cycle.
Give scientific reason.
Oxygen is necessary for complete oxidation of glucose.
Explain the glycolysis in detail.
Write the forms to which following food materials are converted after digestion.
1.Milk
2. Potato.
3. Oil.
4. Chapati
Complete the following chart and state which process of energy production it represents:
Explain the ‘inhalation’.
Why is there a difference in the rate of breathing between aquatic organisms and terrestrial organisms? Explain.
Name the organs that form the excretory system in human beings.
Explain the Steps of Glycolysis.
Choose the forms in which most plants absorb nitrogen
- Proteins
- Nitrates and Nitrites
- Urea
- Atmospheric nitrogen
How do the guard cells regulate opening and closing of stomatal pores?
Why do fishes die when taken out of water?
In each of the following situations what happens to the rate of photosynthesis?
- Cloudy days
- No rainfall in the area
- Good manuring in the area
- Stomata get blocked due to dust
Explain the following concept in short:
Balanced Diet
Explain the following concept in short:
Role of circulatory system in energy production
Give scientific reason.
Cell division is one of the important properties of cells and organisms.
Classify vitamins according to their solubility.
Give one example of each of the classifications of vitamins.
