12) What limits the resolving power of a light microscope?
A) The type of lens used to magnify the object under study.
B) The shortest wavelength of light used to illuminate the specimen.
C) The type of lens that focuses a beam of electrons through the specimen.
D) The type of heavy metal or dye that is used to stain the specimen.
13) The advantage of light microscopy over electron microscopy is that
A) Light microscopy provides for higher magnification than electron microscopy.
B) Light Microscopy Provide for higher resolving power than electron microscopy.
C) Light Microscopy allows one to view dynamic processes in the living cell.
D) Both A and B.
E) Both B and C.
Decimals Metric system and scientific nomenclature
1. Rewrite 0.823489 so that it has 3 significant figures.
2. Write the number 0.000074320 in scientific notation.
3. Write the number 6,230,005 in scientific notation.
4. Convert 227 µg into mg. (your answer must be in scientific notation).
5. What fraction of a meter is an nm? (Your answer must be in scientific notation).
6. Convert 15 cL into µL.
(Your answer must be in scientific notation).
7. Convert 2.7 x10^-7 ng. (Your answer must be in scientific notation).
8. The number 0.0748530 has how many significant figures?
Statistics
Use the data set below to answer questions 9-11 below.
21.2 mg/mL 24.6 mg/mL 15.0 mg/mL 21.2 mg/mL 11.3 mg/mL 10.6 mg/mL
9. What is the median con concentration?
10. What concentration is the mode?
11. Which concentration is the mean?
12. What type of correlation is this: As studying decreases, exam scores decrease. (Explain)
12) What limits the resolving power of a light microscope?
A) The type of lens used to magnify the object under study.
B) The shortest wavelength of light used to illuminate the specimen.
C) The type of lens that focuses a beam of electrons through the specimen.
D) The type of heavy metal or dye that is used to stain the specimen.
13) The advantage of light microscopy over electron microscopy is that
A) Light microscopy provides for higher magnification than electron microscopy.
B) Light Microscopy Provide for higher resolving power than electron microscopy.
C) Light Microscopy allows one to view dynamic processes in the living cell.
D) Both A and B.
E) Both B and C.
Decimals Metric system and scientific nomenclature
1. Rewrite 0.823489 so that it has 3 significant figures.
2. Write the number 0.000074320 in scientific notation.
3. Write the number 6,230,005 in scientific notation.
4. Convert 227 µg into mg. (your answer must be in scientific notation).
5. What fraction of a meter is an nm? (Your answer must be in scientific notation).
6. Convert 15 cL into µL.
(Your answer must be in scientific notation).
7. Convert 2.7 x10^-7 ng. (Your answer must be in scientific notation).
8. The number 0.0748530 has how many significant figures?
Statistics
Use the data set below to answer questions 9-11 below.
21.2 mg/mL 24.6 mg/mL 15.0 mg/mL 21.2 mg/mL 11.3 mg/mL 10.6 mg/mL
9. What is the median con concentration?
10. What concentration is the mode?
11. Which concentration is the mean?
12. What type of correlation is this: As studying decreases, exam scores decrease. (Explain)
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Related textbook solutions
Related questions
QUESTION 4
A substance that reacts the same to light polarized in any direction is _________________.
| a. | an isotope | |
| b. | anisotropic | |
| c. | isotropic | |
| d. | divergent |
QUESTION 5
The part of the comparison microscope that allows the examiner to view two objects simultaneously is called the _________________.
| a. | comparator | |
| b. | comparison bridge | |
| c. | spectroscope | |
| d. | stage |
QUESTION 6
A stereo microscope can best be described as _____________________.
| a. | Two compound microscopes aligned so that they each see a slightly different part of an object. | |
| b. | Two compound microscopes aligned with a comparison bridge. | |
| c. | A compound microscope with two separate stages and one ocular. | |
| d. | A compound microscope with two eyepieces and a camera mount. |
QUESTION 7
In microscopy, resolution is a measure of ________________.
| a. | The ability of the lenses to separate two tiny details that are close together. | |
| b. | The total magnification power of the microscope. | |
| c. | The empty magnification power of the microscope. | |
| d. | The ability of an electron microscope to determine the presence of a large number of elements. |
QUESTION 8
Two polarizers (polarizing filters) aligned 90° from each other will block out all light.
True
False
QUESTION 9
A simple convex lens creates a magnified real image of an object.
True
False
QUESTION 10
A trinocular microscope has three objective lenses mounted on a turret.
True
False
QUESTION 11
Liquids and gases are usually isotropic.
True
False
QUESTION 12
Match each of the following terms with Its Definition
Compound microscope a. Has a polarizer and an analyzer
Electron microscope b. Permits viewing two objects at once
Stereomicroscope c. Consists of a single convex lens
Comparison microscope d. Long working distance, three-dimensional
Simple hand magnifier e. Basic 2 convex lens microscope
Polarizing microscope f. Can magnify images more than 100,000 times
QUESTION 1
The ocular of a compound microscope has a magnification of 10x and the objective has a magnification of 10x. The total magnification of the microscope is ___---
| a. | 10x | |
| b. | 20x | |
| c. | 100x | |
| d. | 1000x |
QUESTION 2
The part of the microscope that focuses the light on an object is the ___________.
| a. | Iris Diaphragm | |
| b. | Coarse Focus | |
| c. | Condenser | |
| d. | Body Tube |
QUESTION 3
The polarizing filter in a PLM that is located above the objective is called the _________________.
| a. | Polarizer | |
| b. | Analyzer | |
| c. | Abbe condenser | |
| d. | Iris |
QUESTION 4
A substance that reacts the same to light polarized in any direction is _________________.
| a. | an isotope | |
| b. | anisotropic | |
| c. | isotropic | |
| d. | divergent |
QUESTION 5
The part of the comparison microscope that allows the examiner to view two objects simultaneously is called the _________________.
| a. | comparator | |
| b. | comparison bridge | |
| c. | spectroscope | |
| d. | stage |
1 points
QUESTION 6
A stereo microscope can best be described as _____________________.
| a. | Two compound microscopes aligned so that they each see a slightly different part of an object. | |
| b. | Two compound microscopes aligned with a comparison bridge. | |
| c. | A compound microscope with two separate stages and one ocular. | |
| d. | A compound microscope with two eyepieces and a camera mount. |
QUESTION 7
In microscopy, resolution is a measure of ________________.
| a. | The ability of the lenses to separate two tiny details that are close together. | |
| b. | The total magnification power of the microscope. | |
| c. | The empty magnification power of the microscope. | |
| d. | The ability of an electron microscope to determine the presence of a large number of elements. |
QUESTION 8
Two polarizers (polarizing filters) aligned 90° from each other will block out all light.
True
False
QUESTION 9
A simple convex lens creates a magnified real image of an object.
True
False
QUESTION 10
A trinocular microscope has three objective lenses mounted on a turret.
True
False
QUESTION 11
Liquids and gases are usually isotropic.
True
False
QUESTION 12
Match each of the following terms with Its Definition
Compound microscope a. Has a polarizer and an analyzer
Electron microscope b. Permits viewing two objects at once
Stereomicroscope c. Consists of a single convex lens
Comparison microscope d. Long working distance, three-dimensional
Simple hand magnifier e. Basic 2 convex lens microscope
Polarizing microscope f. Can magnify images more than 100,000 times
