Photosynthesis and Cellular Respiration Insights

The video tutorial discusses energy's role in life on Earth, focusing on how energy from the Sun is converted by photoautotrophs through photosynthesis into glucose, a high-energy molecule. It explains the importance of glucose as an energy storage molecule and a building block for other molecules. The tutorial introduces cellular respiration, the process by which cells convert glucose into ATP, a usable form of energy for cellular activities.

Which of the following statements is true about energy?

• Energy cannot be converted from one form to another.

• Energy can be converted from one form to another.

• Energy can only be created.

• Energy can be created and destroyed.

What is the primary source of energy for life on Earth?

• The Moon

• The Sun

• The Earth's core

• The oceans

What does 'photo' in photoautotrophs mean?

• Energy

• Light

• Self

• Plant

Which organisms are considered photoautotrophs?

• Animals

• Fungi

• Plants and some bacteria

• Viruses

What is the main product of photosynthesis that stores solar energy?

• Oxygen

• Carbon dioxide

• Water

• Glucose

Where does photosynthesis occur in plant cells?

• Nucleus

• Ribosomes

• Chloroplasts

• Mitochondria

Why is glucose important for plants?

• It is a gas that plants breathe.

• It is a waste product of photosynthesis.

• It is a liquid that plants drink.

• It is a solid that serves as a building block for other molecules.

What can glucose be converted into for storage in plants?

• Nucleic acids

• Proteins

• Starches and cellulose

• Lipids

What is the usable form of energy produced from glucose during cellular respiration?

• FADH2

• NADH

• ADP

• ATP

What are the main reactants needed for cellular respiration?

• Glucose and carbon dioxide

• Oxygen and water

• Glucose and oxygen

• Carbon dioxide and water