Q: What are vesicles made of? Read this paragraph and choose the correct option from the provided answers: A vesicle. Because vesicles are made of phospholipids, they can break off of and fuse with other membraneous material. This allows them to serve as small transport containers, moving substances around the cell and to the cell membrane. Choices: - cells - membranes - filaments - phospholipids A:
phospholipids
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Q: What do you call any substance that opposes coagulation? Read this paragraph and choose the correct option from the provided answers: Plasma Anticoagulants An anticoagulant is any substance that opposes coagulation. Several circulating plasma anticoagulants play a role in limiting the coagulation process to the region of injury and restoring a normal, clot-free condition of blood. For instance, a cluster of proteins collectively referred to as the protein C system inactivates clotting factors involved in the intrinsic pathway. TFPI (tissue factor pathway inhibitor) inhibits the conversion of the inactive factor VII to the active form in the extrinsic pathway. Antithrombin inactivates factor X and opposes the conversion of prothrombin (factor II) to thrombin in the common pathway. And as noted earlier, basophils release heparin, a short-acting anticoagulant that also opposes prothrombin. Heparin is also found on the surfaces of cells lining the blood vessels. A pharmaceutical form of heparin is often administered therapeutically, for example, in surgical patients at risk for blood clots. Choices: - dissolvent - antibodies - toxin - anticoagulant A:
anticoagulant
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Q: Some fruit, like peaches, only have one big seed. what is this seed called? Read this paragraph and choose the correct option from the provided answers: Choices: - the middle - the seed - the core - the pit A:
the pit
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Q: Which types of compounds are more likely to burn easily? Read this paragraph and choose the correct option from the provided answers: Many covalent compounds, especially those containing carbon and hydrogen, burn easily. In contrast, many ionic compounds do not burn. Choices: - hydroxyl - salty - chlorophyll - covalent A:
covalent
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