Brooker Chapter 8 Biology Exam Questions and Answers
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Course
Brooker Biology
Institution
Brooker Biology
Brooker Chapter 8 Biology Exam
Questions and Answers
Biosphere is? - ANSWER-describes the regions on the surface of the earth and in the atmosphere
where living organisms exist.
Heterotrophs? - ANSWER-must consume food such as organic molecules from their environment to
sustain life
Autotroph...
Explain the important cycle b/w photosynthesis and cellular respiration? - ANSWER✔✔-photosynthesis
uses light, CO2 and H2O to produce O2 and organic molecules, the organic molecules can be broken
down to CO2 and H2O via cellular respiration to supply energy in the form of ATP, O2 is reduced to H2O.
Is it true that both heterotrophs and autotrophs carry out cellular respiration? - ANSWER✔✔-yes
Chloroplasts are? - ANSWER✔✔-organelles found in plant and algae cells that carry out photosynthesis.
Chlorophyll are? - ANSWER✔✔-a pigment that gives plants their green color which is contained in the
chloroplasts.
Mesophyll is? - ANSWER✔✔-contains cells with chloroplasts that carry out the bulk of photosynthesis in
plants. This is the inner part of the leaf,, for photosynthesis to occur, the mesophyll cells must obtain
water and CO2, the water is taken up by the root, and is transported to the leaves. CO2 enters the leaf
and O2 exits via pores called Stomata.
Stoma is? - ANSWER✔✔-pores where O2 will leave
Name the 3 membranes that a chloroplasts contain? - ANSWER✔✔-outer, inner and thylakoid
membrane
thylakoid membrane is? - ANSWER✔✔-the 3rd membrane of chloroplasts which contain chlorophyll.
thylakoids is? - ANSWER✔✔-flattened, fluid filled tubules which enclosed a single convoluted
compartment known as thylakoid lumen.
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