BIOL107 Study Guide - Final Guide: Pupillary Distance, Numerical Aperture, Distilled Water
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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
1. Which of the following best describes a condition where a membrane separates two solutions that are NOT in equilibrium?
A | a rainbow |
B | equilibrium |
C | a homogeneous solution |
D | neighboring solutions that have unequal concentrations of molecules |
2. In this lab, we will use dialysis tubing to....
A | simulate biological membranes |
B | separate blood from urine |
C | turn starch blue |
D | turn starch brown |
3. Biological membranes have different types of pores and channels, and different permeability to small molecules depending on size and charge. In this lab, you can assume that the dialysis tubing we are using are permeable to....
A | starch |
B | water and potassium iodide |
C | complex sugars |
D | small animals |
4. Kinetic energy is a property of the atom, and also of more complex structures such as molecules. You can actually see kinetic energy of non-living things in action under the microscope. When we visualize this, we call what we see...
A | diffusion |
B | Brownian motion |
C | osmosis |
D | all of the above |
5. One word to describe the effect of water diffusion across a membrane, which alters the water pressure on one side of the membrane with respect to the other is....
A | osmosis |
B | lysis |
C | aquaporin |
D | equilibrium |
6. Suppose that you place a red blood cell in a hypertonic solution containing penetrating molecules. In this environment, you would expect the cell to eventually
A | swell and burst |
B | shrink |
C | remain the same in size |
D | photosynthesize |
7. For the "egg lab", what is the main objective?
A | to determine which egg has more mass |
B | to determine which egg is hypertonic to the other |
C | to determine which solution the egg is placed in is hyper- or hypo-tonic solution |
D | to determine which egg is isotonic with the egg |
8. The main difference between a 'prediction' and a 'hypothesis', is that predictions....
A | are framed as an "if...then...because" statement |
B | are framed as a general statement |
C | are framed as an "always....true" statement |
D | are framed as an "correct....incorrect" statement |
9. Read each of the following procedural steps for plasmolyzing Elodea sprig and then select the correct order below.
Locate a region of healthy cells and sketch a few adjacent cells
Sketch the plasmolyzed cell
While touching one corner of the coverslip with a piece of Kimwipe to draw off the
water, add a drop of concentrated salt solution to the opposite corner
Obtain a leaf from an Elodea or Water sprite plant
A | 4, 2, 3, 1 |
B | 3, 1, 4, 2 |
C | 2, 3, 1, 4 |
D | 4, 1, 3, 2 |