Question 1

If you were to use antibodies that were chemically bonded to a stain in order to visualize the expression pattern of a protein in a fixed tissue, what experimental techniques and equipment would be applicable?

Accepted Answer

A)  antibody interference assay, bright-field microscopy
B)  immunohistochemistry, dark-field microscopy
C)  immunohistochemistry, bright-field microscopy
D)  DAPI or Hoechst stains, fluorescence microscopy C

Question 2

Matthew noticed that his house plants were wilting badly.Which cell structure had most likely contracted?

Accepted Answer

A)  cytoplasm
B)  cell wall
C)  plasma membrane
D)  vacuole D

Question 3

A protein that is destined to reach the plasma membrane is making its way through the Golgi.At that moment, a drug was added to cells, blocking trafficking at the trans face of the Golgi.As a result, what would happen to the protein?

Accepted Answer

A)  The protein would continue on to the cell surface.
B)  The protein would be stuck in the Golgi.
C)  The protein would return to the endoplasmic reticulum via the trans face of the Golgi.
D)  The protein would exit the Golgi, but instead be targeted to the cytoplasm. B

Question 4

Individuals that are heavy smokers may eventually have trouble clearing the mucous from their lungs because the structures that move fluid along the epithelial lining of the lung become damaged over time.What are these structures called?

Accepted Answer

A)  Pili
B)  Flagella
C)  Cell walls
D)  Cilia

Question 5

Organelles that breakdown hydrogen peroxide into water and oxygen are:

Accepted Answer

A)  peroxisomes.
B)  plastids.
C)  lysosomes.
D)  liposomes.

Question 6

Peroxisomes are examples of:

Accepted Answer

A)  microbodies.
B)  ribosomes.
C)  chromosomes.
D)  nucleosomes.

Question 7

Your research project involves characterizing the expression pattern of a nuclear pore protein.After using immunohistochemistry to fluorescently label the protein, you decide that you would like to capture the data as a 3-D image.Which microscope should you use?

Accepted Answer

A)  confocal microscope
B)  scanning electron microscope
C)  phase-contrast microscope
D)  fluorescence microscope

Question 8

Many antibiotics kill bacteria because they hinder translation by prokaryotic _____.

Accepted Answer

A)  ribosomes
B)  capsules
C)  cytoskeleton
D)  cytoplasm

Question 9

Scientists believe that stimulating growth of algae and other organisms can reduce carbon dioxide amounts in the atmosphere.Where is carbon dioxide consumed in a plant cell?

Accepted Answer

A)  Matrix in mitochondria
B)  Cellulose in cell wall
C)  Stroma in chloroplasts
D)  Number of amyloplasts

Question 10

When looking at plant and animal cells with an electron microscope, you notice that the plant cells have more Golgi membranes than the animal cells.This is most likely because unlike in animal cells, in plant cells the Golgi apparatus is involved in the production of:

Accepted Answer

A)  cytoplasm.
B)  mitochondria.
C)  cell walls.
D)  chloroplasts.

Question 11

The organelle that can collect, package, modify, and transport molecules is called the:

Accepted Answer

A)  plasma membrane.
B)  Golgi apparatus.
C)  mitochondria.
D)  vesicle.

Question 12

When a vesicle moves along microtubules toward the center of the cell, the molecular motor(s) _____ are used?

Accepted Answer

A)  dynein
B)  both kinesin and dynein
C)  Molecular motors are not required for movement along microtubules.
D)  kinesin

Question 13

The nucleolus is the site of:

Accepted Answer

A)  protein synthesis.
B)  uncoiling and unraveling of chromosomes.
C)  ribosome assembly.
D)  lipid synthesis.

Question 14

Some of the functions of the eukaryotic organelles are performed in bacteria by the:rev: 02_28_2015_QC_CS-9326

Accepted Answer

A)  plasma membrane.
B)  capsule.
C)  cell wall.
D)  nucleoid area.

Question 15

Small cells function more effectively, because as cells become larger their surface area to volume ratio:

Accepted Answer

A)  decreases.
B)  is cubed.
C)  increases.
D)  stays the same.

Question 16

A cuboidal shaped cell with six sides is 1mm X 1mm X 1mm.What is the volume and the surface area of the cell?

Accepted Answer

A)  1mm3 : 6mm2
B)  3mm3 : 3mm2
C)  1mm3 : 3mm2
D)  3mm3 : 1mm2

Question 17

Glycogen Storage Disease Type II (GSD II), also known as Pompe disease, is a metabolic disorder that leads to the accumulation of glycogen in muscles and neurons throughout the body.It is caused by a defect in an enzyme that is normally housed with other enzymes that are involved in breaking down large macromolecules.What organelle is most likely affected by this disease?

Accepted Answer

A)  Lysosome
B)  Golgi body
C)  Nucleus
D)  Mitochondrion

Question 18

The distinctive feature of chloroplasts is that they contain a green pigment called:

Accepted Answer

A)  Gram stain.
B)  chlorophyll.
C)  hemoglobin.
D)  chromatin.

Question 19

Ribosomes are made up of:

Accepted Answer

A)  only RNA molecules.
B)  only DNA molecules.
C)  DNA and RNA.
D)  protein and RNA.

Question 20

Integrins are glycoproteins that help link the cytoskeleton and the:

Accepted Answer

A)  cytoplasm.
B)  cell wall.
C)  ribosomes.
D)  extracellular matrix.

Exam 4: Cell Structure