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The rate of diffusion through a selectively permeable membrane will be lowest when ____.
I.concentration gradients are steep
II.temperatures are low
III.solutes are small molecules
Q5: In the figure above, the honeycomb on
Q8: Which of the following items should appear
Q14: rough ER<br>
Q16: Hydrogen bonding is strongest between _.<br>A) adenine
Q20: extends across cell boundaries<br>A)chloroplast<br>B)central vacuole<br>C)plasmodesmata<br>D)cell wall<br>E)chromoplasts<br>
Q21: Cell differentiation can be defined as<br>A) protein
Q34: These fine fibers function in contraction.<br>A)microtubules<br>B)microfilaments<br>C)intermediate filaments<br>D)motor
Q54: Wilkins<br>A)discovered that the hereditary system of one
Q55: What is the correct ordering in the
Q66: microtubules<br>A)contain enzymes for intracellular digestion<br>B)primary cellular organelles