Topic 1a: Question Preview (ID: 31363)

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The process by which cells use energy to transport molecules through the cell membrane from areas of low concentration to areas of high concentration
a) active transport b) passive transport c) photosynthesis d) circulation
any one of several building blocks of protein
a) active transport b) amino acids c) enzymes d) hormone
the basic unit of structure and function that makes up all organisms
a) cell b) nucleus c) enzymes d) organ
the thin boundary between the cell and its environment
a) cell b) cell membrane c) organelle d) enzymes
the process in which nutrients are broken apart, releasing the chemical energy stored in them
a) cell membrane b) cell respiration c) homeostasis d) respiration
the green organelle that contains chlorophyll
a) chloroplast b) organ system c) ribosome d) enzymes
the flow of materials within a cell as well as between parts of multi-cellular organisms
a) respiration b) circulation c) cell respiration d) metabolism
the jellylike substance that is between the cell membrane and the nucleus and that contains specialized structures
a) mitochondris b) cytoplasm c) ribosome d) synthesis
the movement of molecules from areas of high concentration to areas of low concentration
a) diffusion b) osmosis c) excretion d) respiration
the process that breaks down large food molecules into simpler molecules that the organism can use
a) repiration b) synthesis c) digestion d) circulation
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