Exam 3: Cell Structure and Internal Compartments

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

Which of the following is correctly matched?

Which of the following statements is FALSE?

Multicellularity does not characterize all types of organisms living today;which eukaryotic kingdoms retain unicellular representatives?

All of the energy in the food we eat is produced when organelles in plants called ________ convert the energy in sunlight to chemical energy.

In the chloroplast,pancake-like,membrane-bound structures known as ________ are arranged into stacks.

Which of the following statements is FALSE?

The ________ has a double membrane,DNA,and stacks of hollow membranous disks,but no cristae.

A three-parent biological baby involves two fertilized eggs,one that contains healthy mitochondria and one that contains faulty mitochondria.

Cilia are usually thicker and longer than flagella.

A cell you view under a microscope has a cell wall and chromosomes,but no nucleus.The cell you are viewing could be a

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?

What components of the plasma membrane of an animal cell would you find at its innermost surface,directly exposed to the cytoplasm?

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

During the process of photosynthesis,________ is given off as a by-product.

DNA analysis supports the hypothesis that prokaryotes evolved from earlier eukaryotes through adaptive simplification-a process where unnecessary cellular structures are gradually lost.

The definition of life is somewhat arbitrary;the critical aspect(s)that currently define(s)cells as living structures is (are)

Advancement in biology was hindered by the concept of spontaneous generation,the belief that nonliving objects could spontaneously come to life.What aspect of the cell theory specifically refutes this idea?

In eukaryotic cells,the nucleus,chloroplasts,and mitochondria all have double membranes.

The word "fluid" in the term fluid mosaic model refers to the fact that