Science Questions
...potential in the direction opposite to normal diffusion, requiring the expenditure of energy: active transport across a cell membrane.
2. Cell- The smallest structural unit of an organism that is capable of independent functioning, consisting of one or more nuclei, cytoplasm, and various organelles, all surrounded by a semi permeable cell membrane.
3. Cell membrane- The semi permeable membrane that encloses the cytoplasm of a cell.
4. Cell theory- a theory in biology that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells
5. Cell wall- a theory in biology that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells
Chloroplast- A chlorophyll-containing plastid found in algal and green plant cells.
6. Chromatin- A complex of nucleic acids and proteins, primarily histones, in the cell nucleus that stains readily with basic dyes and condenses to form chromosomes during cell division
7. Chromosome- A threadlike linear strand of DNA and associated proteins in the nucleus of eukaryotic cells that carries the genes and functions in the transmission of hereditary information.
8. Concentration- The amount of a specified substance in a unit amount of another substance.
9. Cytoplasm- The protoplasm outside the nucleus of a cell
Cytoskeleton- The internal framework of a cell, composed largely of actin filaments and microtubules.
10. Diffusion- The spontaneous intermingling of the particles of two or more substances as a result of random thermal motion.
DNA- A nucleic acid that carries the genetic information...
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