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Which structure is carrying blood to the heart from the lungs?
A. pulmonary veins
B. superior vena cava
C. pulmonary artery
D. aorta
E. inferior vena cava
F. none of these
Which structure is bringing blood from the lower part of the body to the heart?
A. Inferior vena cava
B. Superior vena cava
C. Aorta
D. Pulmonary veins
E. Pulmonary artery
F. None of these
Which structure is bringing blood from the upper part of the body to the heart?
A. Inferior vena cava
B. Pulmonary veins
C. Superior vena cava
D. Aorta
E. Pulmonary artery
F. None of these
Blood being carried towards the heart is always oxygen-depleted.
True
False
What is the key difference between veins and arteries?
A. Veins carry oxygen-rich blood; arteries carry oxygen-depleted blood
B. Veins carry blood towards the heart; arteries carry blood away from the heart
C. Veins carry oxygen-depleted blood; arteries carry oxygen-rich blood
D. Veins carry blood away from the heart; arteries carry blood towards the heart
E. None of these choices is correct
Is it C?
In the sense-integrate-act loop, the brain is always where signals are integrated.
True
False
When the brain integrates signals from different sensory systems, all these signals receive equal weight in determining the actions & forming memories.
When the brain integrates signals from different sensory systems, all these signals receive equal weight in determining the actions & forming memories.
True
False
How is mean arterial pressure (MAP) calculated and why is it useful? ( short answer please)
What is the isoelectric point of each of the following peptides?
1. His-Ala-Tyr
2. Ala-Lys-His-Ala
3. Consider the system, G + H <===> I + J at 25 °C. What is the total free energy change of this system if the total enthalpy change (heat content change) of the system is 2637 J/mol and the total entropy change is -0.78 kJ/mol.K ?
Is the system described in problem #5 endothermic or exothermic? _______________________
Is the system described in problem #1 endergonic or exergonic? _________________________
4. Consider the two systems shown below. These systems are coupled such that compound X carrying a phosphate group (X-P) transfers the phosphate to compound Y forming Y-P (that is Y carrying a phosphate group). (Pi represents unbound phosphate.)
Reaction 1: X-P + H2O <===> X + Pi ∆G = -43.0 kJ/mol Reaction 2: Y + Pi <===> Y-P + H2O ∆G = +29.4 kJ/mol
What is the ∆G for the combined system? ___________________________________________
Which reaction (system) is driving the other to proceed? _________________________________
