What cells regulate gas exchange by opening and closing the stomata?
What will be an ideal response?
guard
You might also like to view...
If a species is absent from a particular region, which are the reasonable explanations for its absence? Check all that apply.
_____ It evolved elsewhere and never dispersed to the region in question. _____ It was once found in the region in question, but became extinct there due to climactic changes. _____ It was once found in the region in question, but migrated to other regions _____ It was once found in the region in question, but was eradicated by humans.
Which of the following is NOT a typical
function of a leaf?
a. photosynthesis b. gas exchange c. control of water loss d. absorption of water and minerals e. all of these are typical functions of leaves
Fatty acid methyl ester (FAME) analysis is particularly important in public health because in this application, microbiologists seek to identify specific microbial pathogens in _________.
A. patient samples B. genetic diseases C. genomic analysis D. food and water
Match each description to its correct term.
A. a mesh of cytoskeletal elements that attach the sarcomere to its surrounding components B. substance that binds to the thick-filament head causing it to release thin filament and return to its low-energy state C. supply the ATP necessary for muscle contraction D. component of thin filaments E. contractile units of muscle F. cross-bridge is formed between thick and thin filaments following the release of this substance from ATP bound to myosin G. threadlike protein structures consisting of contractile units arranged end to end; comprises the bulk of the muscle fiber H. consists of sarcomeres that are not aligned I. consist of myosin, a motor protein with a clublike head and a long tail J. this protein repeatedly binds, moves, and releases an adjacent thin filament causing a muscle to contract K.