The cytoskeleton
is a network of threadlike proteins that are joined together.
What kind of proteins make up the structural framework of the cell?
The cytoskeleton is composed of three principal types of protein filaments:
actin filaments, intermediate filaments, and microtubules
, which are held together and linked to subcellular organelles and the plasma membrane by a variety of accessory proteins.
What is the name of the network of proteins that gives support to a cell and allows movement?
Cytoskeleton
. Within the cytoplasm there is network of protein fibers known as the cytoskeleton. This structure is responsible for both cell movement and stability. The major components of the cytoskeleton are microtubules, intermediate filaments, and microfilaments.
What are the threadlike proteins?
Fibrin
are the threadlike proteins that attach to platelets in blood clotting.
What is a threadlike structure in a cell?
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called
chromosomes
. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Which structure is unique to plant cells?
Plant cells have certain distinguishing features, including
chloroplasts, cell walls
, and intracellular vacuoles. Photosynthesis takes place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help regulate how cells handle water and storage of other molecules.
Where are proteins Synthesised inside the cell?
Ribosomes
are the sites in a cell in which protein synthesis takes place.
What are the two major types of proteins?
There are two main categories (or sources) of proteins –
animal and plant based
.
What does each cell contain?
All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3)
DNA
, the genetic material of the cell; and (4) …
Why the cell is very important for us?
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body,
take in nutrients from food
, convert those nutrients into energy, and carry out specialized functions. … Cells have many parts, each with a different function.
What is the gap between the nerve and muscle?
Synapse, also called neuronal junction, the site of transmission of electric nerve impulses between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector). A synaptic connection between a neuron and a muscle cell is called a neuromuscular junction.
Why is blood type AB+ considered the universal receiver quizlet?
A person with type AB blood is a universal recipient
because it has no antibodies that will attack
. … This blood type has both anti-A antibodies and anti-B antibodies. Type O blood type will attack all other blood types. A person with type O blood is a universal donor because it has both type of antibodies.
Which component of blood protects us from invading foreign material?
White blood cells
(also called leukocytes) are fewer in number than red blood cells, with a ratio of about 1 white blood cell to every 600 to 700 red blood cells . White blood cells are responsible primarily for defending the body against infection. There are five main types of white blood cells.
Which are the two main parts that make up a chromosome?
Chromosomes mainly constitute
DNA and histone proteins
. DNA is wrapped around a core of histone octamer to form a nucleosome.
What is threadlike structure?
Chromosomes
are the threadlike structures in the nucleus of a cell. In the human body, almost all cells have chromosomes.
What is difference between DNA and chromosome?
Genes
are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person’s genes.
