Exam 5: Cell Structure and Internal Compartments

Your muscle cells need large amounts of ATP to function in the movement of your body. Which of the following organelles would you expect to be especially abundant in muscle cells?

A screen door allows breezes to get in and aromas to get out but keeps out insects. Its function most resembles

The figure below shows a mitochondrion, emphasizing its inner and outer membranes. The inner membrane of the mitochondria is thought to have evolved from

Which of the following statements is false?

Which of the following statements is true?

The part of the plasma membrane that is in contact with the external environment of the cell consists of

The magnification of a specimen by a light microscope is a result of

Certain cells found in humans are identical to certain cells found in plants.

The sizes of several biological structures are indicated in the figure below. Which of the following is the smallest structure you could see with a light microscope?

_____ _____ are the part of the cytoskeleton that provide mechanical strength to cells and reinforce the membranes of organelles.

The _________ has a double membrane but no cristae.

Which of the following statements is false?

The process of photosynthesis

Membrane-enclosed structures in eukaryotic cells are called __________.

The internal pH of a lysosome is about 5-quite a bit lower than the cytoplasm of the cell in which the lysosome resides. What is one advantage to not having the lysosome's enzymes function best at the cytoplasm's pH of 7?

The contents of cells are often visualized with fluorescent (glow-in-the-dark) stains. You treat a cell with a stain that makes a certain part of the cytoskeleton glow green and another stain that makes mitochondria glow red. Under the microscope you see a meshwork of green filaments throughout the cell. Red organelles appear to be traveling along the filaments. The green stain you used must stain