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Show What You Know--Microscopes and Hair

Total questions: 16

Worksheet time: 8mins

Name
Class
Date
1.
The central core of the hair is called the...?
a)
Medulla
b)
Cuticle
c)
Cortex
d)
Shaft
2.

When being compared to a wooden pencil, which part of hair represents the outside layer (usually yellow)?

a)

medulla

b)

cortex

c)

cuticle

d)

follicular tag

3.
The transitional or regressive stage that lasts a few weeks during which hair growth slows is called...?
a)
Anagen
b)
Telogen
c)
Catagen
d)
Metagen
4.
The hair follicle is dormant and hairs are easily lost during which stage of the hair life cycle?
a)
Anagen
b)
Telogen
c)
Catagen
d)
Metagen
5.
We know hair is from a human if…
a)
The medullary index is 0.5 or greater           
b)
The medullary index is 0.33 or less
c)
The cuticle is coronal
d)
The medulla is fragmented
6.
The hair shaft is composed of what important protein?
a)
Cellulose 
b)
Chitin
c)
Peptidoglycan
d)
Keratin
7.
The following medulla pattern is called
a)
fragmented 
b)
continuous
c)
interrupted
8.

True or False: Is it possible to determine what body part hair evidence came from?

a)

True

b)

False

9.

What types of DNA can be found on the hair?

a)

Mitochondrial

b)

nuclear

c)

Both mitochondrial and nuclear

d)

none

10.

The greater the ___________________, the smaller the field you are actually viewing.

a)

detail

b)

objective

c)

magnification

d)

body

11.
What will be the total magnification if ocular lens is 10X and objective lens is 4X?
a)
4X
b)
40X
c)
10X
d)
100X
12.
Uses a beam of electrons to create an image of the specimen
a)
Binocular Microscope
b)
Compound Microscope
c)
Electron Microscope
d)
Simple Microscope
13.

The examination of the interaction of light confined to a single plane with matter is made possible by....

a)

Compound microscope

b)

Scanning Electron Microscope

c)

Polarizing Microscope

d)

Microspectrophotometer

14.

Which type of microscope is best used for the examination of big, bulky items?

a)

Compound Microscope

b)

Magnifying Glass

c)

Comparison Microscope

d)

Stereoscopic Microscope

15.

Which describes the number that expresses the ability of a lens to resolve fine detail in the object being observed

a)

Numerical aperture

b)

Magnification

c)

Fine adjustment

d)

Coarse adjustment

16.

When the microscope is focused with one objective in place and another able to rotate into place while the specimen remains in near correct focus is said to be

a)

Monocular

b)

Condensed

c)

Parfocal

d)

Binocular.