Exam 1 Flashcards
(20 cards)
Hemocytoblasts undergo mitosis and can create all types of formed elements.
True
Each hemoglobin subunit can carry 1 oxygen molecule, while hemoglobin itself carries 4 oxygen molecules.
True
Receptors for the hormones erythropoietin and thrombopoietin are on cells in the red bone marrow.
False
A patient with B- blood can donate whole blood to a patient with the AB+ blood type.
True
In a healthy patient, plasma makes up over 60% of the volume of blood.
False
A solution that is isotonic to plasma would have osmolarity in the range of 275-295 mosmol/L.
True
The most abundant solute in the plasma is sodium
True
Plasma is most efficient at transporting oxygen throughout the body.
False
A patient with blood type O- is considered to have antibodies against the A, B and Rh antigens.
True
Molecular motors require ATP to produce movement.
True
Thrombocytes activate other thrombocytes to prevent blood loss but also signal smooth muscle to contract to prevent blood loss.
True
Membrane trafficking is involved with moving mRNA across the nuclear membrane.
All cells that contain DNA are undergoing mitosis.
False
Cytokinesis is the stage of mitosis that involves the separation of the condensed chromosomes.
False
Plasma membranes are constructed with 2 layers of phospholipids with adjacent fatty acid tails.
True
mRNA exits the nucleus into the cytosol through a nucleopore.
True
A nucleic acid alteration on DNA or mRNA could alter the function of a protein.
true
Plasma membranes are homogenous mixtures of phospholipids and proteins.
False
G0 (G zero) is the first stage of interphase.
False
Glycosaminoglycans and proteoglycans are hydrophobic polymers.
False
