Which of the following organisms posses 70S ribosomes in their cell cytoplasm?
A. Neither prokaryotes not eukaryotes
B. Prokaryotes
C. Both prokaryotes and eukaryotes
D. Eukaryotes
Ans: B. Prokaryotes
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Paraquat is an herbicide that blocks the transfer of electrons from PSII. Mechanistically, paraquat is effective because it __________
A. prevents the reduction of NADPH B. prevents the formation of reactive oxygen species C. increases the formation of reactive oxygen species D. absorbs light energy that cannot then be used for photosynthesis E. increases cyclic electron transport, which does not produce NADPH
Abnormal cell division that does not pose a threat to surrounding tissues is termed _____
a. malignant b. benign c. metastatic d. carcinogenic e. repressed
__________ is the evaporation of water from plant parts, mainly at stomata, into air. Fill in the blank(s) with the appropriate word(s)
The membrane found lining the shoulder joint is the _____ membrane
cutaneous mucous serous synovial