A light microscope with an objective lens numerical aperture of 0.65 is capable of allowing two objects 400 nm apart to be distinguished when using light with a wavelength of 420 nm.
Answer the following statement true (T) or false (F)
True
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Which one of the following pairs is mismatched?
A. lysosome-protein synthesis B. cytoskeleton-microfilaments C. nucleus-DNA replication D. cell membrane-lipid bilayer E. Golgi apparatus-modification, processing, and sorting of macromolecules
An amine hormone important in the stress response in vertebrates is
A. dopamine. B. melatonin. C. cortisol. D. epinephrine. E. serotonin.
What property of phospholipids makes them important in cell membranes?
A) They are an important energy carrier molecule. B) They contain nucleic acids. C) They have a polar end and a nonpolar end. D) They are part of DNA. E) They are found only in animals.
Which of the following is technically NOT a fruit?
A) Tomato B) Cucumber C) Pumpkin D) Lettuce E) Green pepper