udent OECONOMICS (Summer 2018) \', Assessments\', Resources ? D2L Help\'. erly Collins: Attempt 1 Question 12 (1 point) GraphA Graph B $5.50 $5.00 $5.00 4.50 Di Dz 40 50 40 50 ue or False. The economic incidence of the tax is the same regardless of whether it is a sales tax or an excise tax. (See Hint below.) Tr True False D View hint for Question 12 Save Page 12 Previous Pase Next Pazie Solution False. Explanation: Sales tax is a tax burden on consumer hence affect the demand curve as demand falls down. (Graph B) Excise tax is levied on producer affect the supply curve as supply falls down. (Graph A) In both the cases equilibrium, quantity will decline. But in case of sales tax where demand is affected, the prices go down and when excise duty is levied supply goes down, resulting in an increase in prices..

1. Which of the following are roles of proteins? Pick ALL that apply.
They catalyse chemical reactions.
They provide structural support.
They store genetic information.
They allow movement.
They are used primarily for energy storage.
They participate in immune response to invadors.
Solution
Answer:
They catalyse chemical reactions.
They provide structural support.
They allow movement.
They are used primarily for energy storage.
They participate in immune response to invadors.
Explanation:
Proteins are the most versatile macromolecules in living systems and serve crucial functions in
essentially all biological processes. They function as catalysts (as enzymes), they transport and
store other molecules such as oxygen (globin peoteins), they provide mechanical support (actin
protein) and immune protection (antibodies), they generate movement, they transmit nerve
impulses, and they control growth and differentiation. They alson contain energy and release
enery by gluconeogenesis.