Tutor profile: Shahroz T.
Subject: Physics (Waves and Optics)
Why do objects become increasingly blurry as they move closer to our eyes?
As we pass our near point, the focal point for our eyes, everything behind the focal point will appear blurry. However, the image size and orientation is dependent upon the type of lens or mirror, whether it is convex or concave.
How does the exposure of phosphatidyl-serine on the outside of the cellular membrane affect cellular function?
Phosphatidyl-serine is present in the lumen side of the cellular membrane and flipping the lipid so that the serine is now exposed on the extracellular surface will cause a signal for apoptosis, cellular death.
Is interphase considered a phase of mitosis?
Mitosis is initiated in the M phase of the cell cycle, which begins with prophase. Interphase is what the cell spends most of it's lifetime in, in which it prepares for mitosis and performs necessary actions such as DNA replication and therefore comes before prophase.
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