Question

Question 1 Auxin transport Not yet answered Points out of 1.00 Flag question Select one: O a. Is polar, whereby auxin travels from shoot tips down the plant towards the roots. b. Produces a gradient of auxin required to establish organ formation and phototropic responses. c. Auxin is at highest concentrations, near its sources, like the apical meristems O d . Directionality of auxin movement (conferring polarity) is conferred by basally localized efflux carriers called PIN proteins e. All of the above are true. Question 2 Which of the following statements regarding ethylene in plants is FALSE? Not yet answered Select one: Points out of 1.00 O P Flag question a. Ethylene promotes plant senescence b. Ethylene speeds the ripening of fruit c. Ethylene perception occurs at the plasma membrane even though ethylene can easily diffuse across this membrane O d. Ethylene perception and signal transduction relies on a two-component regulatory pathway. (we did not cover this. my apologies - you are not responsible for this answer nor is it the correct answer) e. Ethylene synthesis in seedling plants largely stops when the seedling emerges from the soil and is exposed to light

Answer 1

1) Auxin transport:

E) All of the above are true

2) Which of the following statements regarding ethylene in plants is false?

C) Ethylene perception occurs at the plasma membrane even though ethylene can easily diffuse across this membrane

3) The "triple response” of seedlings:

A) Usually occurs underground in nature

4) Gibberellin (GA) stimulates the synthesis of alpha-amylase

E) A, B and C