Transport VII Lowersixth Science Biology

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Quiz on Bohr/Haldane, high altitude, and heart vessels

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Transport VII Lowersixth Science Biology


Froggy Jumps Transport VII Lowersixth Science BiologyVersion en ligne Quiz on Bohr/Haldane, high altitude, and heart vessels par YAKILI LMS 1 What does the Bohr effect describe in blood? a O2 transport is independent of CO2 levels b Hemoglobin binds O2 more with high pH c Hemoglobin releases more O2 with higher CO2 and lower pH 2 How does the Bohr effect aid tissues during exercise? a O2 unloading increases where CO2 is high b CO2 decreases O2 affinity everywhere c O2 binding to Hb increases with CO2 3 What triggers the Haldane effect? a Deoxygenated Hb carries less CO2 b Oxygenation of hemoglobin releases CO2 c CO2 binds to Hb increases O2 affinity 4 In the Haldane effect, deoxyhemoglobin tends to carry more what? a Hydrogen ions b Oxygen c CO2 5 At high altitude, what primary problem occurs? a Hyperoxia due to excess O2 b Hypoxia due to reduced atmospheric O2 c Increased oxygen carrying capacity 6 What is a common respiratory adaptation at high altitude? a Increased ventilation b Decreased RBC production c Decreased heart rate 7 Hyperventilation at altitude leads to what change in blood pH? a Acidosis (decreased pH) b Alkalosis (increased pH) c No pH change 8 Which process is accelerated at the alveoli at altitude? a Protein synthesis b Gas diffusion due to gradient changes c Water diffusion 9 What happens to O2 transport in the blood at altitude? a O2 cannot be transported b Increased heart and breathing effort boosts delivery c Decreased RBC count 10 Mental reaction at altitude is affected mainly by what? a Blood glucose only b Oxygen availability to brain c CO2 levels alone 11 Arteries carry blood away from the heart to where? a Veins only b Body tissues c Heart chambers 12 Veins primarily carry blood toward which structure? a Capillaries b Arteries only c The heart 13 Capillaries are best described as what? a Muscular conduits b Tiny vessels for exchange between blood and tissues c Large vessels with valves 14 Which vessel has the thickest muscular wall? a Capillary b Artery c Vein 15 What is a key difference between arteries and veins? a Arteries carry deoxygenated blood only b Veins have thicker walls than arteries c Arteries carry blood away; veins carry blood toward 16 Which vessel type contains valves to prevent backflow? a Veins b Capillaries c Arteries 17 What is the basic function of the heart? a Pump blood to the body and lungs b Produce hormones c Store blood 18 What are the heart’s main chambers called? a Atria and ventricles b Lobes and sinuses c Auricles and valves 19 Which side of the heart pumps to the lungs? a Right side b Left side c Both sides equally 20 Which side of the heart pumps to the body? a Both sides equally to body b Right side c Left side 21 What separates the atria and ventricles on each side? a Semilunar valves b Chordae tendineae c Atrioventricular valves 22 Which chamber receives oxygenated blood from the lungs? a Right atrium b Left atrium c Right ventricle 23 Which chamber sends deoxygenated blood to the lungs? a Right ventricle b Left ventricle c Right atrium 24 Which vessel carries blood away from the heart to the lungs? a Pulmonary vein b Aorta c Pulmonary artery 25 Which vessel returns oxygen-rich blood from lungs to heart? a Aorta b Pulmonary artery c Pulmonary vein 26 What prevents backflow in the heart's valves? a Tendons only b Chordae tendineae and papillary muscles c Muscle fibers only 27 Which vessel has pockets called aortic sinuses? a Pulmonary artery b Vena cava c Aorta 28 Which layer forms the inner lining of blood vessels? a Myocardium b Endothelium c Pericardium 29 Which side of the heart has thicker walls generally? a Left atrium b Left ventricle c Right ventricle 30 Which heart valve separates the left atrium and ventricle? a Tricuspid valve b Mitral valve c Aortic valve 31 Which heart valve separates the right atrium and ventricle? a Pulmonary valve b Tricuspid valve c Mitral valve 32 The coronary arteries provide blood to what? a The heart muscle b Lungs c Digestive tract 33 Which chamber receives blood from the body via the vena cava? a Right ventricle b Right atrium c Left atrium 34 Which chamber pumps blood to the body via the aorta? a Left ventricle b Left atrium c Right ventricle 35 What is the function of the vena cava? a Return deoxygenated blood to the heart b Carry blood to lungs c Supply oxygen to heart 36 What is the oxygen content of arterial blood in systemic circulation? a No CO2 changes b High O2, low CO2 c Low O2, high CO2 37 Which vessels exchange nutrients and gases with tissues? a Veins b Capillaries c Arteries 38 What primarily drives gas exchange at tissues? a Heart rate alone b Blood viscosity only c Partial pressure gradients 39 Which side receives systemic venous blood? a Left atrium b Right ventricle c Right atrium 40 Which heart structure regulates heart rate via electrical signals? a Conduction system b Chambers c Valves 41 Which blood vessel type has the largest diameter? a Capillary b Vein c Artery 42 What ensures O2 delivery during hypoxia at altitude? a Lower blood pressure b Decreased heart rate c Increased ventilation and RBCs 43 Which physiological change reduces CO2 during hyperventilation? a Blood becomes acidic b No pH change c Blood becomes alkaline 44 Which component is not part of the heart wall? a Myocardium b Peritoneum c Epicardium 45 Which heart valve opens to allow ejection into the aorta? a Aortic valve b Mitral valve c Tricuspid valve 46 Which feature aids venous return from the head? a Valves in veins b Capillary beds c Elastic arteries 47 Which vessel carries oxygenated blood to the heart muscle? a Coronary arteries b Vena cavae c Pulmonary arteries 48 Which layer lines blood vessels and helps exchange? a Tunica intima (endothelium) b Tunica externa c Tunica media 49 Right heart circulation sends blood to which organ system? a Brain b Liver c Lungs 50 Which portion of the heart pumps to the lungs? a Left ventricle b Left atrium c Right ventricle

Transport VII Lowersixth Science Biology

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Transport VII Lowersixth Science BiologyVersion en ligne

par YAKILI LMS

What does the Bohr effect describe in blood?

How does the Bohr effect aid tissues during exercise?

What triggers the Haldane effect?

In the Haldane effect, deoxyhemoglobin tends to carry more what?

At high altitude, what primary problem occurs?

What is a common respiratory adaptation at high altitude?

Hyperventilation at altitude leads to what change in blood pH?

Which process is accelerated at the alveoli at altitude?

What happens to O2 transport in the blood at altitude?

Mental reaction at altitude is affected mainly by what?

Arteries carry blood away from the heart to where?

Veins primarily carry blood toward which structure?

Capillaries are best described as what?

Which vessel has the thickest muscular wall?

What is a key difference between arteries and veins?

Which vessel type contains valves to prevent backflow?

What is the basic function of the heart?

What are the heart’s main chambers called?

Which side of the heart pumps to the lungs?

Which side of the heart pumps to the body?

What separates the atria and ventricles on each side?

Which chamber receives oxygenated blood from the lungs?

Which chamber sends deoxygenated blood to the lungs?

Which vessel carries blood away from the heart to the lungs?

Which vessel returns oxygen-rich blood from lungs to heart?

What prevents backflow in the heart's valves?

Which vessel has pockets called aortic sinuses?

Which layer forms the inner lining of blood vessels?

Which side of the heart has thicker walls generally?

Which heart valve separates the left atrium and ventricle?

Which heart valve separates the right atrium and ventricle?

The coronary arteries provide blood to what?

Which chamber receives blood from the body via the vena cava?

Which chamber pumps blood to the body via the aorta?

What is the function of the vena cava?

What is the oxygen content of arterial blood in systemic circulation?

Which vessels exchange nutrients and gases with tissues?

What primarily drives gas exchange at tissues?

Which side receives systemic venous blood?

Which heart structure regulates heart rate via electrical signals?

Which blood vessel type has the largest diameter?

What ensures O2 delivery during hypoxia at altitude?

Which physiological change reduces CO2 during hyperventilation?

Which component is not part of the heart wall?

Which heart valve opens to allow ejection into the aorta?

Which feature aids venous return from the head?

Which vessel carries oxygenated blood to the heart muscle?

Which layer lines blood vessels and helps exchange?

Right heart circulation sends blood to which organ system?

Which portion of the heart pumps to the lungs?