Level 1 Gap Fill Task:

1. Photosynthesis is the process by which plants convert ___ into ___.
2. The main pigment responsible for capturing light energy in plants is ___.
3. During photosynthesis, plants take in ___ and release ___.
4. The primary source of energy for photosynthesis is ___.
5. The two main products of photosynthesis are ___ and ___.
6. Photosynthesis occurs in the ___ of plant cells.
7. The process of photosynthesis is essential for the production of ___.
8. The equation for photosynthesis is ___ + ___ → ___ + ___.
9. The oxygen produced during photosynthesis is released into the ___.
10. Photosynthesis is a vital process for maintaining the ___ balance on Earth.

Level 2 Gap Fill Task:

1. The process of photosynthesis occurs in specialized cell structures called ___.
2. The primary pigment involved in photosynthesis is called ___.
3. During photosynthesis, light energy is absorbed by the ___ in the chloroplasts.
4. The energy absorbed by the pigments is used to convert ___ and ___ into glucose.
5. The oxygen produced during photosynthesis is a byproduct of splitting ___ molecules.
6. The glucose produced during photosynthesis is stored in the form of ___.
7. The process of photosynthesis is dependent on the presence of ___.
8. The equation for photosynthesis can be represented as ___ + ___ + ___ → ___ + ___.
9. Photosynthesis is an ___ process as it requires light energy to occur.
10. The rate of photosynthesis can be influenced by factors such as ___ and ___.

Level 3 Gap Fill Task:

1. The process of photosynthesis can be divided into two stages: the ___ reactions and the ___ reactions.
2. The light-dependent reactions occur in the ___ of the chloroplasts.
3. During the light-dependent reactions, light energy is used to split ___ molecules, releasing oxygen as a byproduct.
4. The energy released during the light-dependent reactions is used to produce ___ molecules, which are carriers of energy.
5. The light-independent reactions, also known as the ___ cycle, occur in the ___ of the chloroplasts.
6. During the light-independent reactions, carbon dioxide is converted into ___ using the energy stored in ATP and NADPH.
7. The enzyme ___ is responsible for catalyzing the fixation of carbon dioxide during the light-independent reactions.
8. The glucose produced during photosynthesis is used by plants as a source of ___.
9. The rate of photosynthesis can be affected by factors such as ___ intensity, ___ availability, and ___ concentration.
10. Photosynthesis is a crucial process for maintaining the ___ balance in the atmosphere and providing oxygen for living organisms.