Cell Membrane
In the fluid mosaic model, these molecules make up the bilayer found in the cell membrane.
What is phospolipids
Movement of a solution across a plasma membrane because of a pressure gradient is called this:
What is filtration?
This organelle produces large amounts of ATP.
What is mitochondria?
In the process of transcription, mRNA is copied from this.
What is DNA?
Two or more genes that occupy the same locus on a chromosome are called this?
What is allele?
This membrane protein, made of glycoproteins and glycolipids, allows cells to identify one another or other molecules.
What are marker molecules?
A red blood cell is placed into an unknown solution. Later, the cells appear to be swollen and some have burst. You conclude that the solution is this.
What is hypotonic?
Ribosomal subunits are produced by this round cell structure found within the nucleus.
What is nucleolus?
This can be said of translation:
What is:
a. it requires tRNA and ribosomes
b. a codon specifies for one amino acid
c. proteins are synthesized
This genotype is homozygous dominant.
What is AA?
These channel proteins are always open and are responsible for the permeability of the plasma membrane to ions.
What are nongated ion channels?
These substances may diffuse directly through the lipid bilayer of the cell membrane.
What is carbon dioxide and oxygen?
The Golgi apparatus produces vesicles which contain proteins that can do what?
What is:
be secreted by exocytosis
become part of the plasma membrane
be enzymes that are used within the cell
This sequence of nucleotides is the anticodon for AUG (methionine).
What is UAC?
This is an example of codominance in which all 3 alleles are expressed at the same time.
What is ABO blood groups?
Receptors linked to G protein complexes can stimulate a cell response in this manner:
What is:
by opening ion channels
by activating ions
by means of intracellular chemical signals
What function does the sodium-potassium pump perform?
What is transports sodium ions out of a cell and potassium ions into the cell?
True or False. Enzymes found inside lysosomes digest phagocytized bacteria, nonfunctional organelles, nucleic acids, proteins and lipids.
During DNA replication, this enzyme adds new nucleotides to the existing template.
What isDNA polymerase.
This disorder is caused by having an extra chromosome #21 and results in mental retardation, short stature and a shortened life span.
What is Down Syndrome?
This genetic disorder causes failure of chloride ion channels and results in cells producing a thick secretion which profoundly affects the lungs making breathing difficult.
What is cystic fibrosis?
True or False. Phagocytosis requires ATP, does not exhibit saturation and transports liquid substances across the cell membrane.
What is False?
Cells that synthesize large amounts of lipids would have this.
What is large amounts of smooth ER?
This event is not a result of mitosis.
What is 2 haploid cells are formed?
This can be said of the X-linked trait hemophilia.
What is if a male has the recessive allele, he will be a hemophiliac and a female must have 2 recessive alleles to be a hemophiliac.