Chapter 2 - Cells Questions Flashcards
What substance helps to maintain the inner cell membrane stable?
Cholesterol
What are the 3 basic parts of a cell
Cell membrane
Nucleus
Cytoplasm
What is mucus?
A fluid that lubricates the tissues in the mucous membrane and also help immune function by trapping foreign matter
What does the mucus membranes line ?
Tubular organs
Oral and nasal cavities
Respiratory tract
Urinary tract
What are the 4 types of transport ?
Diffusion
Osmosis
Facilitated diffusion
Active transport
What are the two types of endoplasmic reticulum
Smooth and rough
Rough endoplasmic reticulum is involved in what
The building of proteins
Smooth endoplasmic reticulum is involved in what
Building lipids (fats)
What does cytosol contain?
Water (mostly) Glucose Amino acids Fatty acids Ions Lipids Proteins ATP Waste products
Where is the site of many chemical reactions
In the cytosol
What is cytokinesis
The division of the cytoplasm of a cell
What are the 4 phases of mitosis
Prophase (two new centriole pairs move to opposite ends of the cell)
Metaphase (chromosomes align near the middle portion between the centrioles, and spindle fibers attach to them)
Anaphase (centromere secretions of each chromosomes, and move toward opposite ends of the cell)(cytokinesis begins here)
Telophase (chromosomes arrive at each pole, and new nuclear membranes form)
4 types of cells?
Epithelial tissue
Connective tissue
Muscle tissue
Nervous tissues
Example of epithelial tissues?
Body surfaces (skin)
Cover and lining internal organs (gallbladder)
Make up the glands (enabling secretion and absorption to occur throughout the body)
Name the 9 types of epithelial tissues
Simple squamous Simple cuboidal Simple columnar Pseudostratified columnar Stratified squamous Stratified cuboidal Stratified columnar Transitional Glandular
Location of simple squamous tissue
Air sacs of lungs
Capillary walls
Lining of lymph
Blood vessels
Function of simple squamous
Diffusion
Filtration
Osmosis
Covering of surfaces