Science Exam 2 23-24

What are the products of photosynthesis?

• water and carbon dioxide
• oxygen and glucose
• oxygen and carbon dioxide
• oxygen and water

Which statement about photosynthesis is correct?

• Plants get the energy they need for photosynthesis from water.
• Plants get the energy they need for photosynthesis from soil.
• Plants get the energy they need for photosynthesis from sunlight.
• Plants do not require energy to perform photosynthesis.

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

• the Earth
• the moon
• the sun
• the food we eat/make

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

• mitochondria
• ribosome
• chloroplast
• nucleus

Which of the following is the correct equation for PHOTOSYNTHESIS?

• CO₂ + light + H₂O --> O₂ + glucose
• CO₂ + O₂ + H₂O --> Light+ glucose

Sugar and oxygen are the___________________________ of cellular respiration

• reactants

• products

• made because

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

• chloroplasts

• mitochondria

• cytoplasm

What gas do animals exhale or breathe out?

• carbon monoxide

• oxygen

• methane

• carbon dioxide

Hannah made a diagram to show how plants make their own food. What should Hannah write to fill in the blank in the diagram?

• energy from the wind

• heat from the roots

• heat from the soil

• energy from the Sun

In which way are photosynthesis and cellular respiration similar?

• Both processes destroy energy.

• Both create energy.

• Photosynthesis breaks down sugar while cellular respiration produces sugar.

• Both processes transfer energy from one form to another.