Micro Question 4

Where is the genetic information of the cell stored? The structural framework in a cell is the Where in a cell is ATP made? What carries instructions for making proteins from the nucleus into the cytoplasm? One of the ways smooth endoplasmic reticulum (ER) differs from rough endoplasmic reticulum is that rough ER is covered by Which of the following is part of the endomembrane system? Which of the following organelles breaks down worn-out organelles? Where are lipids made in the cell? What structure acts as a selective barrier, regulating the traffic of materials into and out of the cell?

Which of the following is NOT found in mitochondria and prokaryotes?

Which of the following statements accurately describes specific bacterial cell walls?

Which of the following is found in the cytoplasm of prokaryotic cells but is ABSENT from the cytoplasm of eukaryotic cells?

Which statement regarding the structure or function of ribosomes is correct?

Which membrane transport mechanism requires ATP?

Which of the following eukaryotic organelles is correctly matched with its function?

Which of the following is NOT characteristic of the glycocalyx found in bacteria?

You are observing a Gram stain of spherical-shaped microorganisms that are linked in a chain and stain purple. How would you describe these bacteria using the correct terminology for the cell shape and arrangement?

Which type of solution would cause a bacterium with a weak or damaged cell wall to burst as water moves into the cell?

Which of the following facts does NOT provide evidence for the endosymbiotic theory?

Which of the following statements is INCORRECT regarding prokaryotic cells?

Which drawing in the figure is a tetrad?

Which drawing in the figure is streptococci?

How do spirochetes and spirilla differ?

The cell walls of bacteria are responsible for the shape of the bacteria and the difference in the Gram stain reaction.

Tumbles occur when Which of the following types of bacterial cells would have only a single flagellum? Peritrichous bacteria make a run when Which of the following types of bacterial cells would have flagella located at only one end of the cell?

Which of the following statements about bacterial flagella is true? Taxis is Which of the following terms refers to a bacterium moving towards a light source? As a bacterium approaches a food source, one would expect Why are receptors on the cell surface necessary for bacterial movement?

What structural part of a bacterial flagellum is composed of flagellin? How are Gram-positive and Gram-negative flagella different? The rings The basal body is comprised of which structural component(s) of flagella? Pathogenic bacteria

Which of the following scenarios is an example of bacterial motility? Axial filaments are found on

How do axial filaments differ from regular bacterial flagella? What is the advantage to spirochetes of the corkscrew movement provided by axial filaments? Axial filaments are composed of

A gram-positive bacteria suddenly acquires resistance to the antibiotic methicillin. This trait most likely occurred due to

Functions of the glycocalyx include all of the following EXCEPT

Which structure acts like an invisibility cloak and protects bacteria from being phagocytized?

Which of the following terms best describes the cell in the figure?

The difference between simple diffusion and facilitated diffusion is that facilitated diffusion

You have isolated a motile, gram-positive cell with no visible nucleus. You can safely assume that the cell

Select the most accurate description for the function of pili:

Each of the following statements concerning the gram-positive cell wall is true EXCEPT it

Which of the following statements about gram-negative cell walls is false?

The terms run and tumble are generally associated with

In the figure, which diagram of a cell wall is a gram-negative cell wall?

In the figure, which diagram of a cell wall possesses molecules responsible for symptoms associated with infection?

In the figure, which diagram of a cell wall has a structure that protects against osmotic lysis?

In the figure, which diagram of a cell wall is resistant to many antibiotics (e.g., penicillin)?

In the figure, which diagram of a cell wall contains teichoic acids?

In the figure, which diagram of a cell wall contains porins?

Antibiotics that target the cell wall are an effective treatment against many pathogenic bacteria.

Spheroplasts, protoplasts, and mycoplasms are bacterial cells without cell walls.

If you observe rod-shaped red cells after the Gram stain, you can assume their cell walls contain endotoxin.

Why is ATP necessary for active transport? Which type of active transport protein moves two molecules into the cell at the same time? Which transport protein employs transporters that move molecules only in one direction? Which molecule shown in the animation, the square or the circle, is moving against its concentration gradient? Which type of active transport protein uses one protein to pump two different molecules?

Which of the following molecules would be blocked by a cell membrane? Hydrophobic molecules would enter a cell What is a hallmark of passive transport across cell membranes? A positively charged sodium ion Which of the following statements regarding active transport is false?

What makes phospholipid membranes good at keeping some molecules out, and allowing others to freely pass? Integral proteins are mostly involved in How does water enter and exit a cell? A glycoprotein

Why is no energy required in passive transport? Once equilibrium is reached, Which of the following would not move freely across the cytoplasmic membrane?

How is osmosis different from simple diffusion? Nonspecific permeases What will happen to a cell that is placed in a solution containing a high concentration of sugar, a molecule that cannot pass across the cell membrane? How is simple diffusion different from other types of passive transport?

Which of the following statements best describes what happens when a bacterial cell is placed in a solution containing 5% NaCl?

By which of the following mechanisms can a cell transport a substance from a lower to a higher concentration?

Which of the following is NOT a typical characteristic of most bacterial plasma membranes?

Which of the following statements is true?

Antibiotics that target cell wall synthesis ultimately cause bacterial cell death as a result of

Which of the following is NOT part of the passive transport process?

In bacteria, photosynthetic pigments are found in

Where are phospholipids most likely found in a prokaryotic cell?

Where are phospholipids most likely found in a eukaryotic cell?

Which of the following statements is correct about diffusion across a membrane?

Oxygen crosses a plasma membrane

In a hypertonic solution, a bacterial cell will typically

What will happen if a bacterial cell is placed in distilled water with lysozyme?

Which one of the following pairs is mismatched?

Which of the following are NOT energy reserves?

The DNA found in most bacterial cells

Cells placed in a hypotonic solution tend to lose water due to osmotic pressure.

Small, hydrophobic molecules pass through a cell membrane most easily by diffusion.

Endospores are a reproductive structure.

Which of the following structures is NOT found in some prokaryotic cells?

Which of the following is NOT a functionally analogous pair?

The internal structure of eukaryotic cilia and flagella are the same.

Which of the following have a cell wall?

Which of the following organelles most closely resembles a prokaryotic cell?

Bacteria are a commonly used organism for studies of genetic material in the research laboratory. The nucleic acids must first be isolated from the cells for these studies. Which of the following would most likely be used to lyse the bacterial cells for nucleic acid isolation?

Many enzymes in both prokaryotic and eukaryotic cells are compartmentalized within organelles.