Deck 9: Histology

Question 1

What does Occam's razor mean?

A) The most complicated answer to a problem is usually correct.
B) The simplest explanation is often the correct answer.
C) When you have two competing theories choose the more complex one.
D) When you have two competing theories they are often both wrong.
E) When two objects come in contact with each other there is a two way transfer of material

Answer 1

B

Question 2

Lt. Jenkins had asked all parties involved to submit fingerprints at police headquarters. Which of the people or persons stayed behind to speak with Jenkins?

A) Samdeep O'Neill
B) Dwayne Holmes
C) Sarah Holmes
D) Farah Dawood
E) All of the above

Answer 2

C

Question 3

Sarah Holmes (Erica's mother) shared some information with Jenkins that might connect Dwayne Holmes (husband) to this missing persons case. What was one piece of information she shared with the Lieutenant?

A) Erica found out about her father
B) Dwayne was in trouble with the law for tax evasion.
C) Dwayne was involved in a paternity case.
D) Dwayne had fathered a son from a previous marriage
E) All of the above

Answer 3

A

Question 4

Erica's mother shared additional information with Jenkins that might connect Dwayne Holmes (husband) to this missing persons case. What was the other piece of information?

A) Dwayne was behind on bill payments.
B) Dwayne had a previous criminal record
C) Dwayne did not like Erica dating Sam O'Neill
D) Dwayne was an alcoholic
E) All of the above

Question 5

What is the central idea (s) in this chapter?

Question 6

Which of the series of terms is sequenced according to size and scale i.e., from small scale to large scale…

A) cell to organ to tissue
B) tissue to cell to organ
C) organ to cell to tissue
D) cell to tissue to organ
E) none of the above

Question 7

Below is a list of cell parts and associated function. Which one is mismatched?

A) Golgi apparatus-selectively permeable membrane
B) Lysosomes-cells broken down into waste products
C) Mitochondria-source of ATP
D) Cytoplasm-gel-like fluid in the cell
E) Nucleus-contains chromosomes made of DNA

Question 8

Skeletal muscles are…

A) under involuntary control
B) under both involuntary and voluntary control
C) under conscious thought
D) contract and relax automatically
E) all of the above

Question 9

Characteristic feature(s) of skeletal muscle is that they…

A) are multinucleated and striated
B) possess proteins name myosin and actin
C) appear long and string-like under a light microscope
D) would appear similar to how a telephone wire is bundled in cross-section
E) all of the above

Question 10

The heart is able to pump ……..gallons of blood each day through ………miles of blood vessels.

A) 100,000 and 2,000 respectively
B) 2,000 and 2,000 respectively
C) 100,000 and 100,000 respectively
D) 100 and 2,000 respectively
E) 2,000 and 100,000 respectively

Question 11

Which sets of features best describe cardiac muscles?

A) voluntary, striated, intercalated disks
B) intercalated disks, striated, involuntary
C) involuntary, osteoblasts, multi-nucleated
D) voluntary, dendrites, striated
E) intercalated disks, multi-nucleated, voluntary

Question 12

The uterus, bladder, intestinal wall and blood vessels are controlled by…..

A) skeletal muscles
B) voluntary muscles
C) smooth muscles
D) both voluntary and involuntary muscles
E) none of the above

Question 13

Epithelial cells are….

A) Involved in trafficking of substances in and out of organs they surround
B) found in the outer layer of skin
C) protect and define organs
D) none of the above
E) choices 'a', 'b', 'c' are correct

Question 14

The terms columnar and squamous refer to…

A) the shape of skeletal cells
B) the shape of cardiac cells
C) the shape of epithelial cells
D) the shape of brain cells
E) the shape of blood cells

Question 15

A part of the brain that controls coordination and motor control (body movement) is called the

A) Cerebrum
B) Corpus callosum
C) Spinal cord
D) Cerebellum
E) Pons

Question 16

The cerebellum posses the following features

A) granule cell layer, axons, Purkinje cells
B) granule cell layer, dendrites, myosin
C) granule cell layer, Purkinje cells, actin
D) axons, dendrites, voluntary muscles
E) axons, dendrites, involuntary muscles

Question 17

The function of the Cerebral cortex is….

A) memory
B) thought
C) speech
D) vision
E) all of the above

Question 18

The part of the brain that controls human thought including speech, language, learning, social behavior is called the…..

A) Cerebrum
B) Cerebellum
C) Axon
D) Dendrites
E) Cell body

Question 19

Which of the following is associated with adipose tissue?

A) insulation, energy storage, protection, adipocytes
B) insulation, energy storage, protection, intercalated disks
C) insulation, energy storage, protection, osteocytes
D) insulation, energy storage, protection, granulocytes
E) insulation, energy storage, protection, lamellae

Question 20

The following terms are associated with bone…….

A) osteocytes, matrix, lamellae, squamous cells
B) osteocytes, matrix, lamellae, multi-nucleated
C) osteocytes, matrix, lamellae, cerebellum
D) osteocytes, matrix, lamellae, Haversian canal
E) osteocytes, matrix, lamellae, involuntary

Question 21

Which of the terms are associated with the liver?

A) bile, largest internal organ, hepatocytes, epithelial cells
B) bile, largest internal organ, hepatocytes, Kuppfer cells
C) bile, largest internal organ, hepatocytes, neural cells
D) bile, largest internal organ, hepatocytes, muscles cells
E) none of the above

Question 22

Which of the terms are associated with the lung?

A) alveoli, respiration, oxygen, carbon dioxide
B) alveoli, perspiration, oxygen, carbon dioxide
C) alveoli, involuntary, oxygen, carbon dioxide
D) alveoli, photosynthesis, oxygen, carbon dioxide
E) alveoli, respiration, oxygen, Kuppfer cells

Question 23

If observing a specimen with a compound microscope with a 10x eyepiece and a 40x objective, what is the total magnification of the object being viewed?

A) 100x
B) 200x
C) 300x
D) 400x
E) none of the above

Question 24

Which of the following is not a recommended practice to follow when using a compound microscope?

A) when moving from a low power objective to a higher-powered objective ensure that the new objective does not hit the slide.
B) start initially with the high power objective in place
C) position the object being viewed in the center of the field
D) adjust the light level with the diaphragm
E) use the clips or clamps to secure the slide onto the stage

Question 25

It is recommended that when viewing through a monocular compound microscope…..

A) you keep both eyes open when viewing a specimen through the eyepiece.
B) keep the non-viewing eye closed when observing a specimen through the eyepiece.
C) alternate using the other eye but keep the non-viewing eye closed
D) view the specimen with your dominant eye
E) view the specimen with your non-dominant eye

Question 26

match the following parts of the microscope with their function
-eyepiece

A) used to observe the object under examination
B) knob used to bring the object into its sharpest focus
C) platform where slide is placed on
D) knob used in initial focusing
E) different series of lenses providing degrees of magnification
F) adjusts amount of light passing through the object being viewed
G) None

Question 27

match the following parts of the microscope with their function
-objectives

A) used to observe the object under examination
B) knob used to bring the object into its sharpest focus
C) platform where slide is placed on
D) knob used in initial focusing
E) different series of lenses providing degrees of magnification
F) adjusts amount of light passing through the object being viewed
G) None

Question 28

match the following parts of the microscope with their function
-stage

A) used to observe the object under examination
B) knob used to bring the object into its sharpest focus
C) platform where slide is placed on
D) knob used in initial focusing
E) different series of lenses providing degrees of magnification
F) adjusts amount of light passing through the object being viewed
G) None

Question 29

match the following parts of the microscope with their function
-diaphragm

A) used to observe the object under examination
B) knob used to bring the object into its sharpest focus
C) platform where slide is placed on
D) knob used in initial focusing
E) different series of lenses providing degrees of magnification
F) adjusts amount of light passing through the object being viewed
G) None

Question 30

match the following parts of the microscope with their function
-coarse adjustment

A) used to observe the object under examination
B) knob used to bring the object into its sharpest focus
C) platform where slide is placed on
D) knob used in initial focusing
E) different series of lenses providing degrees of magnification
F) adjusts amount of light passing through the object being viewed
G) None

Question 31

match the following parts of the microscope with their function
-fine adjustment

A) used to observe the object under examination
B) knob used to bring the object into its sharpest focus
C) platform where slide is placed on
D) knob used in initial focusing
E) different series of lenses providing degrees of magnification
F) adjusts amount of light passing through the object being viewed
G) None

Question 32

You are about to place a slide of some biological tissue using a compound microscope. Describe the steps, procedure and techniques you would use when viewing the specimen provided.

Question 33

When rotating the objective lens from a lower to a higher power the field of vision….

A) increases
B) decreases
C) stays the same
D) increases two fold
E) none of the above

Question 34

Centering the object at low power is important because….

A) moving to a higher power increases the field of vision
B) moving to a higher power makes the object being viewed smaller
C) it will make the object appear sharper when viewed at the higher power
D) the object viewed at the next higher power may be out of the field of vision
E) all of the above

Question 35

A metric ruler is place under low power magnification (4x) and you are able to determine the diameter is 3.0 mm. What is the diameter of field of vision at 10x?

A) 1.2 mm
B) 2.0 mm
C) 0.3 mm
D) 0.5 mm
E) none of the above

Question 36

A metric ruler is place under low power magnification (4x) and you are able to determine the diameter is 3.0 mm. What is the diameter of field of vision at 40x?

A) 1.2 mm
B) 2.0 mm
C) 0.3 mm
D) 0.5 mm
E) none of the above

Question 37

When using a compound microscope, what two elements are needed to estimate the diameter of the field?

A) circumference of the field and the magnification of the eyepiece
B) actual diameter of the field and the power of the light source
C) both the actual diameter and circumference of the field
D) know the magnification of the eyepiece and the objectives
E) actual diameter of the field and the magnification of the objective

Question 38

If you know the diameter of the field is approximately 4 mm and you estimate it would take 80 cheek cells to span this diameter, what is the approximate size of one cheek cell?

A) 0.05 mm
B) 0.07 mm
C) 0.09 mm
D) 0.15 mm
E) none of the above

Question 39

Based on the previous answer what is the size of this cheek cell in micrometers (microns)?

A) 50 microns
B) 70 microns
C) 90 microns
D) 150 microns
E) none of the above

Question 40

If the average diameter of a cheek cell is 60 microns how would you go about estimating the diameter of the nucleus inside one cheek cell?

A) estimate how many nuclei it would take to span the diameter of one cheek cell.
B) divide average number of nuclei that would span the diameter of one cheek cell by 60 microns
C) determine the power of the eyepiece
D) choice 'a' & 'b' are correct
E) choice 'a' & 'c' are correct

Question 41

1 micron equals how many mm?

A) 0.001 mm
B) 0.01 mm
C) 0.1mm
D) 1.0 mm
E) none of the above

Question 42

If you have determined that the diameter of the field is 4 mm what is the diameter in microns?

A) 40 microns
B) 400 microns
C) 4000 microns
D) 40,000 microns
E) none of the above

Question 43

What is the approximate total length of DNA in one cell?

A) 2 meters
B) 10 meters
C) 15 meters
D) 22 meters
E) 38 meters

Question 44

The distance that separates one base pair from the next is measured in the unit referred to as an (a)

A) Angstrom
B) Picogram
C) Newton
D) Micron
E) Dyne

Question 45

If the volume of DNA is 6.4 x 10⁹ nm³ and the volume of the nucleus is 5.23 x 10¹¹ nm³ what percentage does this molecule occupy the given space?

A) ≈ 0.5%
B) ≈ 0.12%
C) ≈ 0.75%
D) ≈ 0.91%
E) ≈ 1.22%

Question 46

A scientist is using a compound microscope to examine some trace evidence. The subject is in clear view when observed under low power. To get more detail as to the nature of the trace evidence the individual switches to the medium powered objective but is not able to locate the specimen in the field of view. Come up with a possible explanation as to why the subject was in clear view at low power but disappeared at medium power magnification.

Question 47

Given the following information determine how many stories tall the human genome represents. One page of a book contains 2100 letters. Each letter represents a base pair. The total number of base pairs in the nucleus of a human cell is 6 billion. A ream of paper is 2' thick and contains 500 sheets. Each story of a building is 10 feet tall.
a. Determine the total number of pages (formatted like that of the previous page) required to carry the script of 6 billion base pairs.
b. There are 500 pages in a ream of paper. Determine how many reams of paper would be required to carry the script of the entire human genome.
c. A ream of paper is approximately two inches wide. Determine how tall (in inches) these reams of paper would be if stacked one on top of the other.
d. How many feet does this represent?
e. Assume one story of a skyscraper is 10 feet tall. How many stories tall would this stack of paper reams be if placed one on top of the other?

Question 48

Your body is made up of roughly 100 trillion (1x10¹⁴) cells. If the DNA from all those cells was strung end-to-end, how many times would it reach from your classroom to the moon (239,000 miles away) and back? Conversion factors you need to know:
5280 feet = 1 mile