Photosynthesis Study Guide Check

Is photosynthesis a physical change or a chemical reaction? How do you know?

• physical - food is made
• physical - molecules are mixed up
• chemical - new molecules are made
• chemical - the number of molecules changes

What is food for plants?

• minerals
• water
• glucose 
• carbon dioxide

Where does the food that a plant need come from?

• in from the soil through the roots
• in from the air through the leaves
• made from carbon dioxide and water
• made from minerals and water

What gas is produced in photosynthesis? 

• nitrogen
• oxygen
• carbon dioxide
• hydrogen

How is mass conserved in photosynthesis? 
The reactants and products have the 

• same number of molecules
• same number and type of atoms
• same number of molecules but different types of atoms

What is the name of tiny mouth-like openings that allow carbon dioxide and oxygen to enter and leave the plant.

• xylem 
• phloem
• chloroplast
• stomata

What are the two reactants in photosynthesis?

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

What are the two products in photosynthesis?

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

What is the structure and function of xylem?

• hole that lets gases in and out
• pigment that captures sunlight
• hairs that absorb water
• tubes that transport water

What is the light gathering pigment in plants? 

• chlorophyll
• chloroplast
• hairs that absorb water
• tubes that transport water