Photosynthesis and Cellular Respiration Review

Front

What are the products of photosynthesis?

Back

oxygen and glucose

Answer explanation

The products of photosynthesis are oxygen and glucose. During this process, plants convert carbon dioxide and water into glucose for energy, releasing oxygen as a byproduct.

Front

Which statement about photosynthesis is correct?

Back

Plants get the energy they need for photosynthesis from sunlight.

Answer explanation

The correct statement is that plants get the energy they need for photosynthesis from sunlight. Sunlight is essential for the process, as it provides the energy required to convert carbon dioxide and water into glucose and oxygen.

Front

The main source of energy for all life comes from ____.

Back

the sun

Answer explanation

The main source of energy for all life is the sun, as it drives photosynthesis in plants, which are the foundation of the food chain. While food provides energy, it ultimately comes from the sun.

Front

What is the organelle that contains the chlorophyll used in photosynthesis?

Back

chloroplast

Answer explanation

The chloroplast is the organelle that contains chlorophyll, which is essential for photosynthesis. It captures light energy to convert carbon dioxide and water into glucose and oxygen.

Front

Which of the following is the correct equation for PHOTOSYNTHESIS? Options: CO₂ + light + H₂O --> O₂ + glucose, CO₂ + glucose + H₂O --> O₂ + light, _O2 + light + H₂O --> CO₂ + glucose, CO₂ + O₂ + H₂O --> Light+ glucose

Back

CO₂ + light + H₂O --> O₂ + glucose

Answer explanation

The correct equation for photosynthesis is CO2 + light + H2O -> O2 + glucose. This process occurs in plants, where carbon dioxide and water, using light energy, are converted into oxygen and glucose.

Front

Sugar and oxygen are the ___________________________ of cellular respiration.

Back

reactants

Answer explanation

Sugar and oxygen are the reactants of cellular respiration, meaning they are the substances that are consumed in the process to produce energy, carbon dioxide, and water.

Front

What cell organelle do animals and plants both have that are needed for cellular respiration to occur?

Back

mitochondria

Answer explanation

Mitochondria are the organelles responsible for cellular respiration in both animals and plants, converting nutrients into energy. Chloroplasts are specific to plants for photosynthesis, while cytoplasm is not an organelle.

Front

What gas do animals exhale or breathe out?

Back

carbon dioxide

Answer explanation

Animals exhale carbon dioxide as a waste product of respiration. They take in oxygen and release carbon dioxide, which is essential for maintaining the balance of gases in the atmosphere.

Front

What should fill in the blank in the diagram showing how plants make their own food?

Back

energy from the Sun

Answer explanation

Hannah should write 'energy from the Sun' because plants use sunlight to perform photosynthesis, converting light energy into chemical energy to make their own food.

Front

How are photosynthesis and cellular respiration similar?

Back

Both processes transfer energy from one form to another.

Answer explanation

Both photosynthesis and cellular respiration involve energy transfer. Photosynthesis converts light energy into chemical energy (glucose), while cellular respiration converts that chemical energy back into usable energy (ATP).