303 cards
The microtubules emanating from the centrioles exert force on ____, pulling them apart.
The microtubules emanating from the centrioles exert force on the sister chromatids, ____
____ are a diverse group of filamentous proteins, which includes keratin, desmin, vimentin, and lamins.
Intermediate filaments are a diverse group of filamentous proteins, which includes ____.
Many intermediate filaments are involved in ____.
____ filaments are able to withstand a tremendous amount of tension, increasing the structural rigidity of the cell.
There are four tissue types: ____.
____ cover the body and line its cavities, providing a means for protection against pathogen invasion and desiccation.
To remain as one cohesive unit, epithelial cells are tightly joined to each other and to an underlying layer of connective tissue known as…
In most organs, epithelial cells constitute the ____ of the organ.
In most organs, ____ cells constitute the parenchyma , or the functional parts of the organ.
____ epithelia have one layer of cells.
Simple epithelia have ____ layer of cells.
____ epithelia have multiple layers.
Stratified epithelia have ____ layers.
____ epithelia appear to have multiple layers due to differences in cell height but are, in reality, only one layer.
Pseudostratified epithelia ____
Cuboidal epithelia are ____.
____ epithelia are cube-shaped.
Columnar epithelia are ____.
____ epithelia are long and thin.
Squamous epithelia are ____.
____ epithelia are flat and scalelike.
____ supports the body and provides a framework for the epithelial cells to carry out their functions.
____ are the main contributors to the stroma or support structure.
Connective tissues are the main contributors to the str____ucture.
____d are all examples of connective tissues.
Most cells in connective tissues produce and secrete materials such as ____ to form the extracellular matrix.
Most cells in connective tissues produce and secrete materials such as collagen and elastin to form the ____.
Prokaryotes genetic material is organized into ____.
There are three overarching domains into which all life is classified: ____.
The two domains of life that contain prokaryotes are a____.
Historically, Archaea were considered ____, in that they were most commonly isolated from harsh environments with extremely high temperatur…
Historically, ____ were considered extremophiles, in that they were most commonly isolated from harsh environments with extremely high temp…
While some archaea are ____ and can generate energy from inorganic compounds, including sulfur- and nitrogen-based compounds such as ammoni…
While some archaea are photosynthetic, many are chemosynthetic and can generate energy from inorganic compounds, including ____.
Both eukaryotes and Archaea start translation with ____.
Archaea contain a ____ to bacteria.
Bacteria perform essential functions for human beings, including the production of ____ in the intestine.
Bacteria perform essential functions for human beings, including the production of vitamin K in the ____.
____ perform essential functions for human beings, including the production of vitamin K in the intestine.
Some bacteria have ____ relationships, meaning that both humans and the bacteria benefit from the relationship.
Some bacteria have mutualistic relationships, meaning ____.
Some bacteria have ____ relationships, meaning that they provide no advantage or benefit to the host, but rather cause disease.
Some bacteria have parasitic or pathogenic relationships, meaning ____.
Pathogenic bacteria may live ____
Spherical bacteria are known as ____ .
____ bacteria are known as cocci .
Rod-shaped bacteria are known as ____.
____ bacteria are known as bacilli.
____ bacteria are known as spirilli .
Spiral-shaped bacteria are known as ____ .
Bacteria that require oxygen for metabolism are termed ____.
Bacteria that use ____, or some other form of cellular metabolism that does not require oxygen, are called anaerobes.
Bacteria that use fermentation, or some other form of cellular metabolism that does not require oxygen, are called ____.
Anaerobes that cannot survive in an oxygen-containing environment are called ____ .
____ are unable to use oxygen for metabolism, but are not harmed by its presence in the environment.
____ can survive in environments with or without oxygen and will toggle between metabolic processes based on the environment.
The ____ forms the outer barrier of the prokaryotic cell.
Together, the cell wall and the cell membrane are known as the ____.