Chapter 6

Question 1

What is the smallest structure that would most likely be visible with a standard research grade light microscope?

Answer 1

Mitochondrion

Question 2

What is an advantage of light microscopy over electron microscopy?

Answer 2

Light microscopy allows a visualization of dynamic processes in living cells

Question 3

In the fractionation of homogenized cells using differential centrifuation, which of the following will require the greatest be different pallets at the bottom of the tube

Answer 3

Ribosomes

Question 4

How can a modern transmission electron microscope achieve a resolution of about 0.2 nm

Answer 4

Electron beams have much shorter wavelengths than visible light

Question 5

What is the most appropriate method to observe the movement of contains chromosomes during cell division?

Answer 5

Standard light microscopy

Question 6

What method is the most appropriate method to observe and measure the size of ribosomes in a eukaryotic cell

Answer 6

Transmission electron microscopy

Question 7

Which of the following would be most appropriate observed a 3-D structure and organization of microvilli on an intestinal cell

Answer 7

Scanning electron microscope

Question 8

Oh, what box will have the greatest ratio of surface area to volume

Answer 8

1x1x1

Question 9

What domains of life are classified as prokaryotes?

Answer 9

Bacteria and Arcadia

Question 10

What is found in plant animal and bacterial cells?

Answer 10

Ribosomes

Question 11

What macromolecule enters the nucleus of a eukaryotic cell through pores in the nuclear membrane?

Answer 11

Ribosomal proteins

Question 12

What statement correctly describes some aspects of protein secretion from prokaryotic cells

Answer 12

Protein, secreted by prokaryotes are likely synthesize on ribosomes bound to the cytoplasmic surface of the plasma membrane

Question 13

What would happen if the nuclear lamina disassembled

Answer 13

A nucleus with chain shape

Question 14

A cell with the predominance of rough ER is most likely

Answer 14

Producing large quantities of proteins for secretion

Question 15

Assault with a predominance of smooth ER is likely specialized to

Answer 15

Synthesize large quantities of lipids

Question 16

What structure is independent of the Endo membrane system?

Answer 16

Chloroplast

Question 17

What cellular organelle is most likely defective with Tay-Sachs disease?

Answer 17

The lysosome

Question 18

Cells take up asbestos by phagocytosis, but are not able to degrade it where does the asbestos fibers accumulate?

Answer 18

Lysosomes

Question 19

Thylakoids DNA and ribosomes are all components found in where

Answer 19

Chloroplasts

Question 20

If plants are grown on media, containing radioactively labeled timing, for one generation radioactively labeled macromolecules will be detectedin which of the following

Answer 20

Nucleus, mitochondria, and chloroplast

Question 21

How does a liver cell detoxify alcohol?

Answer 21

The enzymes of the paroxysm remove hydrogen from these molecules and combine the hydrogen with oxygen molecules to produce hydrogen peroxide

Question 22

Where are proteins produced other than on ribosomes free in the cytosol or ribosomes attached to the ER?

Answer 22

In mitochondria

Question 23

Cyanide binds with at least one molecule involved in producing ATP if a cell is expose cyanide, most about cyanide is likely to be a localized within the

Answer 23

Mitochondria

Question 24

Suppose a young boy is always tired, and fatigued suffering from a metabolic disease, which of the following organelles is most likely malfunctioning in this disease

Answer 24

Mitochondria

Question 25

Vinblastine, a drug that inhibits microtubules polymerization is used to treat some form of cancer. Cancer cells given this drug would be unable to do what

Answer 25

Separate chromosomes during cell division

Question 26

How do amoeba move?

Answer 26

Growth of actin filaments to find boys in the plasma membrane

Question 27

Researchers investigating the mechanisms of vesicular transport assembled a cell free system that included microtubule tracks, vesicles, and ATP. They observed no movement of transport of vesicles in this system. What are they missing

Answer 27

Motor proteins

Question 28

How to Celia and flagella bend

Answer 28

A motor proteins called dynein

Question 29

Cytochalasin D is a drug that prevents Actin polymerization. Also treated with this drug will still be able to carry out what process

Answer 29

Move vesicles within a cell

Question 30

What is required to form cilia or flagella?

Answer 30

Tubulin

Question 31

A mutation that disrupts the ability of an animal cell to add polysaccharide modifications to proteins, but most likely cause defects, in which of the following organelles or structures

Answer 31

The Golgi apparatus an extra cellular matrix

Question 32

What is a primary function of integrins

Answer 32

Transmitting signals from the extracellular matrix to the cytoskeleton

Question 33

What structure forms, cytoplasmic channels that connect adjacent plant cells to the cell wall

Answer 33

Plasmodesmata

Question 34

How can ions trouble from the cytoplasm of one animal cell to an adjacent cell?

Answer 34

Gap junctions

Question 35

What does the middle lamella do in plant cells?

Answer 35

Glues adjacent cells together

Question 36

Which cell would be the best for studying lysosomes

Answer 36

Fag of cystic white blood cells