Question

a vesicle moving along a microtubule away from the plasma membrane is moving toward the: plus end of the microtubule minus end of the microtubule question 7 1 pts small proteins and amino acids ____ diffuse through a lipid bilayer by themselves, without the aid of a channel or transporter. can cannot question 8 1 pts dr prakash describes his current position of running a laboratory as mostly reflecting back on the open ended curiosity of exploration from his childhood lots of memorization lots of book learning

Explanation:

• For the first question, in cell biology, vesicles moving away from the plasma - membrane move toward the minus end of the microtubule. Microtubules have a polarity, and the plus end is usually oriented towards the cell periphery while the minus end is towards the cell center.
• For the second question, small proteins and amino acids are polar molecules. Lipid bilayers are hydrophobic in nature, and polar molecules cannot diffuse through them without the aid of a channel or transporter due to the hydrophobic barrier.
• For the third question, running a laboratory often involves exploration and curiosity, which aligns with reflecting on childhood - like open - ended curiosity. Memorization and book - learning are not the most accurate descriptions of running a laboratory.

Answer:

• Question 1: minus end of the microtubule
• Question 2: cannot
• Question 3: mostly reflecting back on the open ended curiosity of exploration from his childhood