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Have-a-Java Quiz 3 - Photosynthesis:
 
1.During the light-dependent reactions of photosynthesis, __________ passes electrons to an Electron Transport Chain.
    A) chlorophyll a
    B) chlorophyll b
    C) carotenoid
    D) water

 
2.A chlorophyll "a" molecule consists of all the following structural components except:
    A) alternating single and double bonds
    B) phytol tail
    C) stroma
    D) central magnesium atom

 
3. One important contribution of water to the light-dependent reactions is that it:
    A) provides hydrogen ions to PI
    B) provides carbon dioxide to PI
    C) provides photons to PII
    D) provides electrons to PII

 
4. The major product(s) of the light-independent reactions is/are:
    A) NADPH, ATP
    B) NADP+, ATP, oxygen
    C) water, H+
    D) sugar

 
5. C4 plants utilize the enzyme ______________ to initially fix carbon dioxide in the__________ cells.
    A) PEP carboxylase; mesophyll
    B) RuBP carboxylase; bundle sheath
    C) ATP synthase; stroma
    D) PEP carboxylase; matrix

 
6. During cyclic photophosphorylation:
    A) no oxygen is produced
    B) no ATP is produced
    C) no NADPH is produced
    D) A and C

 
7. The light-dependent reactions occur in the ______; whereas the light-independent reactions occur in the _______.
    A) stroma; thylakoid
    B) stroma; matrix
    C) thylakoid; stroma
    D) matrix; cytoplasm

 
8. The first stable 3-carbon organic molecule produced by the C3 (Calvin) cycle is:
    A) PGA
    B) PGAL
    C) PEP
    D) glucose

 
9. How many carbon dioxide molecules must be "fixed" in the C3 cycle to produce 1 molecule of glucose?
    A) 2
    B) 4
    C) 6
    D) 8

 
10. Photosynthesis occurs most efficiently when plants are exposed to ______ light.
    A) green
    B) orange
    C) yellow
    D) blue

 
11. The major pigments responsible for photosynthesis in green plants are:
    A) chlorophylls
    B) carotenoids
    C) anthocyanins
    D) hemoglobins

 
12. The electron transport chain in the thylakoid membrane passes electrons from carrier to carrier. In the process, energy is released and is used to pump _________ from the stroma to the thylakoid interior.
    A) glucose
    B) oxygen
    C) electrons
    D) protons

 
13. Electrons that pass down the ETS of both Photosystem I and II are finally picked up by:
    A) glucose
    B) NAD+
    C) NADH
    D) NADP+

 
14. Stomata open to allow carbon dioxide into the leaf. The stomata open when surrounding guard cells fill with _____ and bend allowing a space (the stoma) to form between them.
    A) water
    B) air
    C) chlorophyll
    D) electrons

 
15.Glucose produced by photosynthesis can be saved by the plant as _____ (for food storage) and _______ (for structural material).
    A) protein; starch
    B) cellulose; sucrose
    C) starch; cellulose
    D) glycogen; lipid


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