Kinesin is a motor protein that moves

A) Flagella back and forth
B) Vesicles toward the minus end of microtubules
C) Organelles toward the plus end of microtubules
D) Vesicles toward the plus end of actin
E) Muscle cells


Answer: C) Organelles toward the plus end of microtubules

Biology & Microbiology

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What is adiabatic cooling?

A. The effect of rainfall on windward side of a mountain. B. The influence of polar air masses on tropical mountains. C. Increasing elevation leads to a decrease in air pressure and cooler air. D. The influence of sinking cooler air in a Hadley cell. E. The enhanced cooling caused by cloud cover at higher elevations.

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What extracellular plant signaling molecules can exert their effects at very low concentrations?

a. hormones b. peptide c. enzymes d. pheromones e. plasmodesmata

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All animal cells contain the same type and quantity of organelles?

a. true b. false

Biology & Microbiology

The first photosynthetic autotrophs used the energy of the sun to split H2O because it is not very electronegative

______________ Indicate whether the statement is true or false.

Biology & Microbiology