Photosynthesis and Its Processes

The video explains the process of photosynthesis, where plants convert carbon dioxide and water into glucose and oxygen using sunlight. It details the steps to balance the photosynthesis equation and compares it with respiration, highlighting their complementary roles in energy transfer. The importance of plants in the ecosystem is emphasized, noting their ability to produce oxygen and glucose, which are vital for animal life.

What do plants use to create glucose and oxygen?

• Oxygen, nitrogen, and water

• Carbon dioxide, nitrogen, and sunlight

• Carbon dioxide, water, and sunlight

• Oxygen, water, and sunlight

What is the first step in balancing the photosynthesis equation?

• Convert names into formulas

• Balance the hydrogen atoms

• Balance the oxygen atoms

• Write the reactant and product names

How many carbon atoms are on the right side of the photosynthesis equation?

• Eighteen

• Twelve

• Six

• One

What is the main difference between photosynthesis and respiration?

• Photosynthesis releases carbon dioxide, respiration releases oxygen

• Photosynthesis is exothermic, respiration is endothermic

• Photosynthesis uses carbon dioxide and water, respiration uses glucose and oxygen

• Photosynthesis uses glucose, respiration produces glucose

Where is energy written in the photosynthesis equation?

• In the middle

• It is not included

• On the right side

• On the left side

What type of reaction is photosynthesis?

• Exothermic

• Endothermic

• Combustion

• Neutralization

What do the structural formulas of photosynthesis and respiration show?

• That they are unrelated processes

• That they are identical processes

• That they are complementary processes

• That they occur in animals only

What do plants produce that is essential for animal survival?

• Glucose and oxygen

• Carbon dioxide and water

• Nitrogen and glucose

• Oxygen and nitrogen

How can plants obtain carbon dioxide without animals?

• Through nitrogen fixation

• By absorbing oxygen

• From forest fires and volcanoes

• Through photosynthesis

Why should we protect plants?

• They are aesthetically pleasing

• They provide shade

• They consume oxygen

• They produce glucose and oxygen