Which of these is NOT an example of a parenchyma cell?
A) cells that can form clones in tissue culture of plants
B) support cells near the outside of nonwoody stems
C) edible cells in fruits and vegetables
D) tissue in leaves that photosynthesizes
B
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Lignified, tube-like structures that branch throughout the body of some plants, conducting water and
solutes, are called ____.
a. vascular tissues b. apical meristems c. root systems d. rhizomes e. shoot systems
Immunoglobulins and TCRs associate with adaptor molecules that have
A) a C domain. B) immune-based tyrosine-activation motifs (ITAMs). C) pathogen recognition receptors. D) toll-like receptors.
Enzymes change the ___________ of a reaction
A. G B. first law of thermodynamics C. second law of thermodynamics D. types of products E. activation energy
Phosphofructokinase is an allosteric enzyme in the glycolysis pathway. Regulation of glycolysis is directly related to the level of ATP and citrate. If ATP or citrate levels are high, phosphofructokinase will be inhibited
What will happen to this enzyme when ATP levels drop? A. Phosphofructokinase will be inhibited. B. Phosphofructokinase will be activated. C. Metabolism of citrate will be inhibited. D. Metabolism of phospholipids will be activated. E. Metabolism of phospholipids will be inhibited.