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BIOL235: Midterm I Questions and Correct Answers & Latest Updated

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What are the four major types of cells? o :## Neurons (nervous), muscle, epithelial, and connective tissue cells What are the main functions of a neuron? o :## > Rapidly transmits electrical signals o > Highly branched to send or receive o > Enables communication between the brain an...

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  • August 25, 2024
  • 64
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • biol235 midterm i questions and correct answers

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1|Page: 2024/2025 Grade A+




BIOL235: Midterm I Questions and Correct
Answers & Latest Updated
What are the four major types of cells?


o :## Neurons (nervous), muscle, epithelial, and connective tissue cells



What are the main functions of a neuron?


o :## > Rapidly transmits electrical signals
o > Highly branched to send or receive
o > Enables communication between the brain and
o other organs
o > Processes simple and complex information



What is the main function of muscle cells?


o :## > Contract and generate force



What are the three types of muscle cells?


o :## > Skeletal
> Cardiac

> Smooth




Which type(s) of muscle cells are involuntarily used?


o :## Cardiac & Smooth



Which type(s) of muscle cells are voluntarily used?



Master01: DO NOT COPY AND PASTE!! August 25, 2024 Latest Update

,2|Page: 2024/2025 Grade A+

o :## Skeletal



Why are neurons and muscle cells often compared?


o :## Because they are both excitable



Where are epithelial cells located?


o :## At the surfaces that cover the body or individual organs.



Why are epithelial cells so unique?


o :## Because of their organization and morphology



What is the difference between a simple epithelial cell and a stratified epithelial cell?


o :## a single cell layer thick



What is a cuboid epithelial cell?


o :## Epithelial cell shaped as a cube



What is a columnar epithelial cell?


o :## Epithelial cell shaped as a column



What is a squamous epithelial cell?


o :## Epithelial cell with a flattened shape



What is a ciliated epithelial cell?




Master01: DO NOT COPY AND PASTE!! August 25, 2024 Latest Update

,3|Page: 2024/2025 Grade A+

o :## Epithelial cell containing cilia



Where does the epithelial tissue rest?


o :## On an extracellular protein layer called the basement membrane.



What is the basolateral membrane?


o :## The basolateral membrane of a polarized cell is the surface of the basement membrane.
It faces outwards, away from the lumen.



What is the apical side?


o :## Is the side toward the lumen



How are epithelial cells held together?


o :## By tight junctions



What are tight junctions?


o :## Tight junctions seal adjacent epithelial cells in a narrow band just beneath their apical
surface. They consist of a network of claudins and other proteins.



What does it mean by epithelial cells are specialized?


o :## They are selective for secretion and absorption of ions and organic molecules, and for
protection.



How are glands formed?


o :## From epithelial cells.




Master01: DO NOT COPY AND PASTE!! August 25, 2024 Latest Update

, 4|Page: 2024/2025 Grade A+


What determines the function of an epithelium tissue?


o :## In the region that it is formed the body reflects its function of that particular epithelium.



What is the function of connective tissue?


o :## To connect, anchor, and support the structure of the body.



What are the different types of connective tissue?


o :## > Loose Connective
> Dense Connective

> Blood

> Cartilage

> Adipose




If a cell is not a nerve, muscle, or epithelial cell, what is it?


o :## A connective tissue cell



What is a tissue?


o :## A group of similar cells that work together to perform a specific function.



What is an organ?


o :## A group of tissues that work together to perform a specific function.



What is an organ system?




Master01: DO NOT COPY AND PASTE!! August 25, 2024 Latest Update

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