When the cap of an average gilled mushroom is cut off and shaken, a cloud of powdery material is released. The material released are
What will be an ideal response?
spores
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Plastoquinone (PQ), an electron carrier of small molecular weight, is found in the electron transport chain associated with photosystem II. If PQ is not directly anchored to other membrane or cytoplasmic structures, it is probably _____
A) mobile in the thylakoid membrane B) lipid soluble C) a molecule that serves as a shuttle between the electron transport chain and ATP synthase D) both lipid soluble and a molecule that serves as a shuttle between the electron transport chain and ATP synthase
Which of the following can be used to cultivate plant viruses?
A. Plant protoplast cultures B. Whole plants C. Cultures of separated plant cells D. All of the choices are correct.
What type of lipid has four carbon rings and no tails?
a. fats b. steroids c. waxes d. phospholipids e. triglycerides
A major function of tight junctions is to
a. create strong cell-cell adherence. b. promote the intermixing of proteins between the apical and basolateral surfaces of cells. c. seal the space between adjacent cells to provide, for example, a barrier to sugar diffusion across an epithelial cell layer. d. sort cells on the basis of adhesion during cell migration in embryos.