WorksheetsScientists, Pigments, Color, Light, Factors - Photosynthesis
Total questions: 12
Worksheet time: 6mins
If other colors such as red, orange, and yellow exist in leaves, why are they green except in the fall?
Chlorophyll is the most abundant pigment.
Chlorophyll pigment molecules are the largest.
Chlorophyll reproduces faster than any other the other pigments.
Green is the color that is most easily seen.
Why are chloroplasts found mostly in the leaves of plants?
The large surface area of the leaves allows for easy access to oxygen.
The waxy coating of the leaves prevents water loss thus helping with photosynthesis.
Chlorophyll pigment interferes with the xylem and phloem of the stems of plants.
The large surface area of the leaves allows for the maximum amount of light to be absorbed.
Jan van Helmont originally concluded that plants gain their mass from ____________ but in fact future scientists used his work to determine that they actually gain their mass from ____________.
water, carbon dioxide
soil, water
soil, carbon dioxide
water, oxygen
Photosynthesis converts water and carbon dioxide using sunlight into
oxygen
high energy sugars and starches
ATP and oxygen
oxygen and high energy sugars and starches
Most plants appear green because chlorophyll
reflects blue-violet light
absorbs green light
does not absorb green light
none of the other answers
If a reactant such as water or carbon dioxide is removed from a plant's environment, what would you expect to happen to the plant's production of sugar and oxygen?
The same amount of sugar and oxygen would be produced.
More sugar and oxygen would be produced.
No sugar and oxygen would be produced.
water and carbon dioxide don't affect the production of sugar and oxygen
C4 an CAM plants use different photosynthetic pathways than C3 because they are found in __________ climates.
hot, humid
cold, dry
hot, dry
cold, humid
What type of photosynthetic pathway might a cactus use?
C4
C3
CAM
none of the other choices
What type of photosynthetic pathway might a food grown in large quantities such as corn use?
C4
C3
CAM
none of the other choices
What is the name for light absorbing molecules that gather the sun's energy?
chloroplasts
pigments
thylakoids
grana
Joseph Priestley discovered that plants produce ___________ which is required for a candle to stay burning in an enclosed environment.
carbon dioxide
oxygen
water vapor
sugar
What types of pigments are found in leaves?
carotenoids
chlorophyll a
chlorophyll b
all the other choices
