Quiz 🩺 Medicine
Anki Anatomy, physiology, microbiology Quiz
Quiz generated from Anki Anatomy, physiology, microbiology
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Question 1
How is microscope magnification calculated?
- Multiply the power of the ocular lens by the power of the objective lens
- Add the powers of the ocular and objective lenses
- Divide the objective lens power by the ocular lens power
- Use only the objective lens power
Question 2
What happens to working distance as microscope magnification increases?
- It decreases
- It increases
- It remains the same
- It becomes equal to the focal length
Question 3
Which is the correct sequence of the stages of mitosis?
- Prophase, metaphase, anaphase, telophase
- Interphase, prophase, metaphase, anaphase
- Telophase, anaphase, metaphase, prophase
- Prophase, anaphase, metaphase, telophase
Question 4
The checkpoint that assesses cell size before DNA synthesis is the ___ checkpoint.
Fill in the blank
Question 5
Anaphase is the longest phase of mitosis.
- True
- False
Question 6
What is a kinetochore?
- A special protein structure at each chromosome's centromere
- A microtubule that forms the mitotic spindle
- The imaginary midline of the cell
- A structure that dissolves during late prophase
Question 7
During which phase do chromosomes align at the spindle equator?
- Metaphase
- Prophase
- Anaphase
- Telophase
Question 8
Cytokinesis begins during late anaphase and continues through and beyond telophase.
- True
- False
Question 9
Which of the following lists the four basic tissue types?
- Epithelial, connective, muscle, nervous
- Epithelial, skeletal, cardiac, smooth
- Connective, epithelial, nervous, vascular
- Muscle, nervous, cartilage, bone
Question 10
Which characteristic of epithelial tissue means its cells are separated by minimal extracellular material?
- Cellularity
- Polarity
- Avascular but innervated
- Regeneration
Question 11
Epithelial tissues are avascular but innervated.
- True
- False
Question 12
What is the metaphase plate?
- The imaginary plane midway between the poles
- The region where the nuclear envelope breaks down
- The protein structure at the centromere
- The microtubule array extending from the centrosome
Question 13
Epithelial tissue is avascular. How does it receive nutrients?
- From direct blood vessels within the epithelium
- By diffusion from underlying connective tissue
- Through nerve endings
- From the apical surface
Question 14
How are lost cells in epithelial tissue replaced?
- By cell division
- By migration from deeper tissues
- By transformation of blood cells
- They are not replaced
Question 15
Which junction provides strong adhesion between adjacent epithelial cells?
- Gap junction
- Tight junction
- Desmosome
- Hemidesmosome
Question 16
Hemidesmosomes attach epithelial cells to the basal lamina.
- True
- False
Question 17
Which junction seals adjacent epithelial cells just beneath their apical surface?
- Desmosome
- Gap junction
- Adherens junction
- Tight junction
Question 18
Gap junctions are intercellular channels for the free passage of ______ and small molecules.
Fill in the blank
Question 19
What distinguishes stratified epithelium from simple epithelium?
- Stratified has multiple layers; simple has one layer
- Stratified has one layer; simple has multiple layers
- Both have multiple layers
- Both have one layer
Question 20
Which epithelium consists of a single layer of flat cells?
- Simple squamous
- Simple cuboidal
- Stratified squamous
- Simple columnar
Question 21
Adherens junctions provide strong mechanical attachments between cells.
- True
- False
Question 22
In epithelial tissue, ______ junctions allow the free passage of ions and small molecules between cells.
Fill in the blank
Question 23
Epithelia receive nutrients directly from blood vessels within the epithelial layer.
- True
- False
Question 24
What attaches epithelial cells to the basal lamina?
- Tight junctions
- Adherens junctions
- Hemidesmosomes
- Gap junctions
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