Cells

• Cytoplasm - The jelly-like substance inside the cell where most chemical reactions take place.
• Cell membrane - A thin layer that surrounds the cell and regulates what enters or exits the cell.
• The nucleus is the control center of the cell, containing genetic material.
• The cell wall is made up of polysaccharides, such as cellulose.
• Plant cells have a rigid cell wall that provides support to the cell.
• Cell walls are found only in plant cells and some bacteria.
• Nucleus - A membrane-bound structure that contains genetic material (DNA) which controls all activities within the cell.
• Mitochondria - Organelles responsible for producing energy through respiration.
• Nucleus - Contains genetic material (DNA) which controls all activities within the cell.
• Ribosomes - Small structures involved in protein synthesis.
• Mitochondria are responsible for producing energy through respiration.
• Ribosomes synthesize proteins using instructions from DNA.
• Mitochondria - Responsible for producing energy through respiration.
• Specific heat capacity
• Temperature change = mass x specific heat capacity x temperature change
• The greater the specific heat capacity, the more energy required to raise its temperature by one degree.
• Evolution of earth
• Mitosis: a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth
• Diploid: (of a cell or nucleus) containing two complete sets of chromosomes, one from each parent.
• Haploid: (of a cell or nucleus) having a single set of unpaired chromosomes.
• energy sources: fossil fuels, nuclear, hydroelectric, solar, wind, geothermal
• Nuclear Energy: fission of uranium atoms releases large amounts of energy
• Fossil Fuels: coal, oil, natural gas are formed by decaying plants and animals over millions of years under high pressure and heat