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1. Which part of the respiratory system is composed ofC-shaped cartilaginous rings and cilia?a. pharynxb. larynxc. trachead. bronchiolese. alveolicavity-pharynx-glottis-trachea-larynx-bronchi-bronchioles-alveoli2. The greatest surface area for gas exhange occurs within thea. tracheab. bronchic. bronchiolesd. alveoli3. Which association is not correct?a. larynx--voice boxb. trachea-windpipec. alveoli-gas exchanged. pharynx-vocal cordse. hair and mucus--nasal passages4. In humans, the lungs are caused to inflate when thea. rib muscles contractb. diaphragm muscle contractsc. rib muscles and diaphragm contractd. diaphragm relaxese. rib muscles and diaphragm relax5. Oxygen is transported in blood most efficiently bya. being dissolved in the plasmab. chemical conversion to waterc. combining with hemoglobind. combining with carbon dixoide to form bicarbonateions6. How is most carbon dioxide transported in the blood?a. as gas bubbles of CO2, just as in carbonated softdrinksb. as bicarbonate ions (HCO3)c. on the free hemoglobins since they have lost their oxygenin the tissuesd. as carbon monoxidee. as carbon compounds and oxygen radicals.
How does changing the pH or temperature of a reaction affect the active site of an enzyme?
If NAD+ is an electron acceptor that becomes NADH and the NADH then donates a proton to ATPase, should not NADH now become NAD- since it lost it's proton but still has electron?
Determine what pattern of relatedness would you infer among four individuals based only on the following sequences from the same place in their chromosomes?
If oxygen is unavailable, what happens to the citric acid cycle and if necessary, during which stage(s) of cellular respiration is(are) carbon dioxide released?
A strain of E. coli contains a mutant tRNALeu. Instead of recognizing the codon 5' CUG 3', as it does in nonmutant cells, the mutant tRNA recognizes the codon 5'GUG3'. A missense mutation of another gene, bug, affecting amino acid number 28 of the..
q1. if the atp synthase molecules were at random oriented so that about half of the molecules faced the outside of the
Develop a SRF model to describe the divergence of liverworts from other plant species, demonstrate how populations of multiple phenotypes originate
Why is the San Joaquin Valley one of the most hazardous places in the country with respect to air population.
After cell division, some cells become differentiated.
Keeping blood pressure constant, if a vessel dilated to twice its original diameter, what would be the effect on blood flow
Assume you have one hundred ml each of 400 mg/ml sodium phosphate, 250 mg/ml sodium chloride, and 100 mg/ml potassium nitrate.
What techniques can research scientists use to track the passage of the H1N1 (swine flu virus) throughout the world and
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