Question

photosynthesis guided reading comprehension
(1) all cells need cell energy to undergo cell activities and survive. the ultimate source of energy for all living things comes from the sun. photosynthesis is the process by which photosynthetic organisms such as plants, algae, and some bacteria use sunlight to convert carbon dioxide gas and water into food (glucose) and oxygen.
(2) photosynthesis is an important life - process that provides more than 99% of the energy used by living things on earth. the process of photosynthesis captures light energy from the sun and transforms it into chemical energy. the term photosynthesis can be broken down into two root words: photo meaning \light\ and synthesis meaning \to put together\.

1. define photosynthesis in your own words.
2. what energy transformation takes place during photosynthesis?
3. what is the ultimate source of energy for all living things?
4. what two root words can the term photosynthesis be broken down into?

(3) photoautotrophs are organisms that perform photosynthesis to make their own energy using light from the sun. the word photoautotroph is a combination of the term autotroph (an organism that makes its own food), and the prefix photo-, which means \light\. plants, most algae, and cyanobacteria are all examples of photoautotrophs. during photosynthesis, photoautotrophs use light energy from the sun to undergo chemical reactions that result in the production of glucose and oxygen from carbon dioxide and water. plants obtain carbon dioxide from the atmosphere and water from their roots.
(4) photosynthesis is largely responsible for producing and maintaining the oxygen content of the earths atmosphere and supplies most of the energy necessary for life. the oxygen produced by photosynthesis is released as a by - product into the atmosphere. organisms require this oxygen to make cellular energy in a process known as cellular respiration. plants store glucose as chemical energy reserves and use glucose to construct new plant structures. the chemical energy stored in molecules of glucose is a vital energy source for nearly all living things. animals acquire this energy by consuming plants.

1. what type of organisms can perform photosynthesis?

6 what is photosynthesis largely responsible for?

1. what is glucose used for?

Explanation:

1. Photosynthesis is the process by which plants, algae and some bacteria use sunlight to turn carbon - dioxide and water into glucose (food) and oxygen.
2. Light energy from the sun is transformed into chemical energy.
3. The sun is the ultimate energy source for all living things.
4. The root words are "photo" (light) and "synthesis" (to put together).
5. Photoautotrophs like plants, most algae, and cyanobacteria can perform photosynthesis.
6. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere and supplying most of the energy necessary for life.
7. Plants store glucose as chemical - energy reserves and use it to construct new plant structures. Animals acquire energy by consuming plants.

Answer:

1. Photosynthesis is the process where photosynthetic organisms such as plants, algae, and some bacteria use sunlight to convert carbon dioxide and water into glucose and oxygen.
2. Light energy from the sun is transformed into chemical energy.
3. The sun.
4. "Photo" and "synthesis".
5. Plants, most algae, and cyanobacteria (photoautotrophs).
6. Producing and maintaining the oxygen content of the Earth's atmosphere and supplying most of the energy necessary for life.
7. Plants store it as energy reserves and use it to build new structures. Animals get energy by eating plants.