How do companion cells load most of the carbohydrates into sieve tube members?
a. by symport
b. through carrier proteins
c. through plasmodesmata
d. by antiport
Answer: c. through plasmodesmata
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Explain how mass spectrometry (MS) has aided in the progression of the field of metabolomics
What will be an ideal response?
Organisms that require gaseous oxygen for metabolism are referred to as
A. facultative aerobes. B. obligate aerobes. C. facultative anaerobes. D. microaerophiles.
Transport proteins _____
a. are found only in eukaryotic cells b. allow only small molecules and ions to cross the membrane c. are required for small nonpolar molecules to cross the membrane d. allow ions and polar molecules to cross the membrane e. are peripheral membrane proteins
The above figure represents which of the
following:a. a male with trisomy 21 b. a female with trisomy 21 c. a result caused by the use of colchicine d. a gorilla globin gene spread e. none of these