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.
