Cellular growth

9 important questions on Cellular growth

What is the main idea about cell growth mentioned in the document?

Cells grow until they reach their size limit, then they either stop growing or divide.

What happens to the ratio of surface area to volume as cells grow?

As cells grow in size, the ratio of surface area to volume gets smaller. A low ratio means a cell might have trouble bringing nutrients into and moving wastes out of the cell.

Why are most cells small according to the document?

Most cells are smaller than the period at the end of this sentence.
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What occurs during the G₁ stage?

As soon as a cell divides, it enters the G₁ stage. During G₁, a cell grows, performs normal cell functions, and prepares to copy its DNA. Some cells, such as muscles and nerve cells, exit the cycle at this stage and do not divide again.

How is the surface area of a cube-shaped bacterial cell calculated?

Surface area can be calculated as length times width times the number of sides, or 1 µm × 1 µm × 6 sides = 6 µm².

How is the volume of a cube-shaped bacterial cell calculated?

Volume is length times width times height, or 1 µm × 1 µm × 1 µm, which equals 1 µm³.

How long does it typically take a cell to complete the cell cycle?

A typical animal cell takes 12–24 hours to complete the cell cycle.

What happens during the G₂ stage?

The G₂ stage is the period when the cell prepares for the division of its nucleus. When preparations are complete, the cell enters mitosis.

How do prokaryotic cells divide?

Prokaryotic cells reproduce by a method called binary fission.

The question on the page originate from the summary of the following study material:

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