Uttarakhand Board Class 10 lifeprocesses — practice questions
16 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Uttarakhand Board Class 10 lifeprocesses in the app →In humans, which chamber of the heart pumps oxygenated blood to the entire body?The filtration units of the kidney are calledDuring strenuous exercise, muscle cells respire anaerobically. The product that causes muscle cramps isOxygen liberated during photosynthesis comes fromWhich sequence correctly traces deoxygenated blood from the body back to the lungs?Opening and closing of stomatal pores is controlled byArteries are characterised byA fish has a two-chambered heart and single circulation. This meansThe exchange of gases between alveolar air and blood occurs byIn plants, water and minerals are transported throughThe transport of food (sucrose) in phloem from leaves to other parts is called translocation and requiresWhich of these is the correct summary equation of photosynthesis?What prevents the backflow of blood inside the heart during contraction?Blood leaving the tissues (in systemic capillaries) becomes richer inAutotrophs differ from heterotrophs in that autotrophsIn which group does the heart NOT pump oxygenated blood to the body at all?