Imagine that you are investigating the production of insulin in normal cells. You are using these cells to help determine the cause of faulty insulin production in other cells where insulin appears to be synthesized but fails to be secreted from the cell
You design experiments
using three different pharmaceutical compounds to help pinpoint the trouble spot in the
protein synthetic pathway. The first compound blocks transport vesicle movement in the
cytoplasm. The second blocks the SRP release from the ribosome and mRNA. The third
compound binds to and blocks the signal sequence so the SRP cannot recognize it.
Which of the following describes what you would expect to observe in cells treated with the
inhibitor of transport vesicle movement?
A. an accumulation of insulin in the cytosol
B. an accumulation of insulin in the Golgi
C. an accumulation of insulin at the plasma
membrane
D. a lack of insulin in the cell
Answer Key: B
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The ____ tissue system is made up of interconnecting cells that form transport channels throughout the plant
a. ground b. organ c. vascular d. dermal e. xylem
Abscisic acid synthesized in the root travels to different parts of the shoot where it regulates transpirational water loss. What is the most likely way that ABA travels from the root to the various locations within the shoot?
A. From cell to cell through the plasmodesmata B. Sieve tubes C. Vessels and tracheids D. Between cell walls
The lymphocytes that are involved in nonspecifically killing altered self-cells, such as tumor cells and virus infected
cells, are the:a. monocytes b. natural killer cells c. neutrophils d. B cells e. eosinophils
Hemolytic disease of the newborn is a type (I/II/III/IV) hypersensitivity disorder.
Fill in the blank(s) with the appropriate word(s).