The lateral movement of transmembrane proteins can be restricted by several different mechanisms
Which mechanism best describes the process by which nutrients are taken up at the apical surface of the epithelial cells that line the gut and released from their basal and lateral surfaces?
(a) proteins are tethered to the cell cortex
(b) proteins are tethered to the extracellular matrix
(c) proteins are tethered to the proteins on the surface of another cell
(d) protein movement is limited by the presence of a diffusion barrier
(d)
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In the fungus pictured, which of the following structures is indicated by C?
A. mycelium B. hyphae C. fruiting body D. spores E. rhizoid
The reactants of photosynthesis are
A. oxygen and water. B. sunlight and carbon dioxide. C. water and carbon dioxide. D. water and glucose. E. sunlight and chlorophyll.
Plants make ____, which are similar to female sex hormones in mammals but have nothing to do with sexual
reproduction in plants. a. estrogens b. phytoestrogens c. auxins d. cytokinins e. gibberellins
Concordance values for twins are only useful in studying traits that are completely heritable. Indicate whether the statement is true or false