Question: Describe the purpose of photosynthesis and explain why it is important for all life.

Answer: To store the energy of sunlight as glucose. It is important because all organisms get their energy from the sun.

Question: List the raw materials used in photosynthesis and describe how plants obtain each of these materials.

Answer: water- collected by roots of plant carbon dioxide- collected by stomata of plant leaves

Question: Write the equation for photosynthesis. Identify the products and the reactants in the equation.

Answer: H20+CO2 C6H12O6 + O2; Reactants are water (H20) and carbon dioxide (CO2). Products are glucose (C6H12O6) and oxygen (O

Question: Explain why the number of carbon atoms on the left side of the photosynthesis equation is the same as on the right side.

Answer: The carbon atoms in photosynthesis remain the same number throughout the process because matter cannot be created nor destroyed. The carbon atoms are simply regrouped into different molecules.

Question: Explain the function of the organelles involved in the process of photosynthesis.

Answer: Chloroplasts; they collect the energy of the sun which is needed for photosynthesis to occur.

Question: Describe the two stages of photosynthesis. Why is one stage called the “dark reactions”?

Answer:

Question: Describe the uses of glucose by plants.

Answer: It is stored or used by plant cells immediately for growth.

Question: Describe the purpose of cellular respiration.

Answer: to convert the energy stored in glucose into a usable form (ATP).

Question: List the raw materials of cellular respiration and describe how organisms obtain them.

Answer: Glucose- obtained from food like fruit, bread, etc

Oxygen- breathed in through the lungs or gills from the atmosphere or ocean.

Question: Write the equation for cellular respiration. Identify the products and reactants.

Answer: C6H12O6+6O2 6CO2 + 6H2O +ATP. Reactants are glucose (C6H12O6) and oxygen (O2). Products are carbon dioxide (CO2), water (H2O) and ATP.