Energy and The Sun

1. All living things need food to survive because they need to utilize the __________

    stored in food for all their activities.

2. Most plants are able to __________ the energy from the Sun to make their own 
    ________.

Energy from the Sun to Plants

3. The _________ is the ultimate source of energy for all living things.

4. The Sun gives off light and heat energy.

Light energy enables us to see and allows green plants to make food during

_______________.

5. Heat energy helps to keep the Earth and living things ______________.

    ____________ absorbs the light energy and transforms it into chemical energy.


6. The chemical energy is then used to make _____________ from water and 

carbon dioxide and ______________ is given off in the process.


7. The exchange of gases take place through the _____________ found on leaves.


8. Excess glucose is stored as ____________ in different parts of the plant. Eg. Excess

food may be stored in the _______ like carrots, in ____________   ___________ like

potatoes or in ______________ like papayas.



Energy from Green Plants to Other Living Things

9. All animals get their energy ___________ or ____________ from plants.

10. __________________ is the breakdown of glucose with the release of energy in

     living cells.

11. ______________ and ________________ are released as waste products during

     respiration.

12. Unlike _______________ which can only take place in the presence of light,

      ____________ takes place all the time.

13. During the day, a green plant carries out both _______________ and _____________.

14. In the presence of bright light, the rate of photosynthesis is ______________ than the

      rate of respiration.

15. At night or in the absence of light, a plant carries out _______________ only, taking

      in ________________ and giving out ___________________.


Food Chains and Food Webs

16. A ________  _________ shows the food relationship between plants and animals.

17. A __________ ________ consists of two or more interconnected food chains.


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