In an enzymatic reaction, reactants are called ________
A) products
B) substrates
C) catalysts
D) None of the listed responses is correct.
B
Explanation:
A) Products are the results of an enzymatic reaction.
C) Catalysts are enzymes that lower activation energy.
D) One of the listed answers is correct.
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To regulate pH, all of the following are secreted into the fluid in the collecting system EXCEPT __________.
hydrogen iron All of the listed responses are correct. bicarbonate
What is one possible path of blood from the heart to the left hallux and back to the heart?
A) Aorta ? left common iliac artery ? lleft external iliac artery ? left great saphenous artery ? left anterior tibial artery ? dorsal pedal artery ? arcuate arteries ? dorsal venous arch ? left small saphenous vein ? left femoral vein ? left internal iliac vein ? left common iliac vein ? inferior vena cava B) Aorta ? left common iliac artery ? left internal iliac artery ? left small saphenous artery ? left popliteal artery ? left posterior tibial artery ? dorsal pedal artery ? arcuate arteries ? dorsal venous arch ? left femoral vein ? left internal iliac vein ? left common iliac vein ? inferior vena cava C) Aorta ? left common iliac artery ? left external iliac artery ? left femoral artery ? left popliteal artery ? left anterior tibial artery ? dorsal pedal artery ? arcuate arteries ? dorsal venous arch ? left great saphenous vein ? left femoral vein ? left external iliac vein ? left common iliac vein ? inferior vena cava D) Aorta ? left common iliac artery ? left internal iliac artery ? left femoral artery ? left popliteal artery ? left posterior tibial artery ? dorsal pedal artery ? arcuate arteries ? dorsal venous arch ? left fibular vein ? left popliteal vein ? left internal iliac vein ? left common iliac vein ? inferior vena cava
The brain is dependent upon glucose as its primary energy source
Indicate whether the statement is true or false
Which of the following does NOT have an immediate effect on the stroke volume of the heart?
A. pH of the blood B. Concentration of electrolytes around cardiac muscle cells C. Strength of contraction of the ventricles D. Venous return to the right atrium