NursingSprint
:: ::
Action
::
Action
:: ::
Action
:: ::
Action
:: ::
Action
:: ::
Action
:: ::
Action
:: ::
Open
:: ::
Action

Practice Question

This lens on the compound microscope can be changed to view specimens at varying magnifications

Answer Choices:

Correct Answer:

Objective lens

Rationale:

◈ The objective lens is the part of the compound microscope that can be rotated to change the level of magnification when viewing a specimen.

◈ Objective lenses are available in different powers (e.g., 4x, 10x, 40x, 100x), allowing the observer to increase or decrease the level of detail and clarity of the image.

◈ The ocular lens or eyepiece usually has a fixed magnification, typically 10x, and is not interchangeable in the same way.

◈ The objective lens is the correct answer because it directly determines how magnified the specimen appears under the microscope.

Want to practice more questions like this?

This question is from MICROBIOLOGY EXAM 1 which contains 62 questions.

Start Full Exam View Exam Details
More Questions from This Exam
While in the same family as a disease that was killing millions, this disease is not deadly and was used by Edward Jenner as a vaccination

Answer Choices:

A. Anthrax
B. Pneumonia
C. Small Pox
D. Chicken Pox
E. Cow Pox
View Full Question
Which is NOT a characteristic of the plasma membrane?

Answer Choices:

A. Maintains cell shape
B. Contains proteins embedded within
C. Target site for some antibiotics
D. Selectively permeable
View Full Question
Protection of a disease provided by vaccination is called ________ and was discovered thanks to the work of____________

Answer Choices:

A. immunity, Jenner
B. Recovery. Lancefield
C. Immunity, Pasteur
D. Recovery, Koch
E. Virulence, Jenner
F. Composed of phospholipid bilayer
View Full Question
A bacterial cell is placed in an isotonic solution. Describe the movement of water specifically in this type of solution.

Answer Choices:

A. Water is not moving into or out of the cell due to equilibrium
B. Water is moving into the bacterial cell due to the higher concentration of water on the outside as compared to the inside
C. Water is moving slower than normal to adjust for the high concentration gradient
D. Water is moving out of the bacteria cell due to the lower concentrations of water inside versus outside of the cell
E. Water is moving faster than normal to adjust for the high concentration gradient
View Full Question
The theory proposed to suggest that prokaryotic species were engulfed by eukaryotic ancestors and put to work as the mitochondria is called

Answer Choices:

A. Endomitochondrial Theory
B. Endosynposium Theory
C. Endosymbiotic Theory
D. Endomembranous Theory
View Full Question
View All 62 Questions
From Exam
MICROBIOLOGY EXAM 1

62 Questions

View Full Exam Start Practicing
Question Details
  • Category: PRE-REQUISITES NURSING COURSES
  • Subcategory: MICROBIOLOGY
  • Domain: MICROBIOLOGY_EXAMS
  • Answer Choices: 5
Was this question helpful?
0/5 average rating (0 votes)
Share your thoughts
Comments (0)