Inhibitors of the electron transport chain exert their effects through a variety of mechanisms.

a. rotenone rotenone atractyloside azide blocks electron transport and proton pumping via inhibition of complex iv.
b. azide rotenone atractyloside blocks electron transport and proton pumping via inhibition of complex i.
c. blocks electron transport and atp synthesis by inhibiting the exchange of atp and adp across the inner mitochondrial membrane.
d. blocks atp synthesis without inhibiting electron transport by dissipating the proton gradient.

Use this dichotomous key for insect identification to identify the insect shown. 1. a. insect has one pair of wings. order diptera b. insect has two pairs of wings. go to #2 2. a. front wings thicker in texture than hind wings go to #3. b. front and hind wings are same texture throughout. go to #4 3. a. front wings are short order dermaptera b. front wings cover entire abdomen order coleoptera 4. a. wings with scale on all parts of their area. order lepidoptera b. wings without scales go to #5. 5. a. hind wings smaller than front wings. order ephemeroptera b. front and hind wings nearly equal in size. order odonata the insect pictured is in the order diptera. ephemeroptera. coleoptera. odonata.