Teas 7 Biology exam 100% correct

Teas 7 Biology exam 100% correct Answers are highlighted in red Cell basic organizational unit of all living things . One thing in common is they all have membranes Phospholipids ) Cell structure organization All cells contain DNA , and RNA & can synthesize proteins . Consists of nucleic acids , cytoplasm , and cell membrane . Tissues : Cells that are grouped together Organs Tissues that are grouped together Systems : Organs that are grouped together Organism : A complete individual Nuclear parts of a cell Answer Nucleus : contains chromosomes , & regulates DNA of the cell . Defining structure of eukaryotic cells ( they all have nucleus ) . Passes genetic traits between generations . Contains nuclear envelop , nucleoplasm , nucleolus , nuclear pores , chromatin , & ribosomes . Chromosomes thread like rods of DNA . Short deoxyribonucleic acid , DNA is the genetic material that stores information about the plant / animal . Chromatin : DNA & Protein makeup chromosomes Nucleolus Proteins , small / round doesn't have membrane . Protein synthesis , synthesizes & stores RNA Nuclear envelope Encloses structures within nucleus . Made of lipids . Nuclear pores Exchange materials between the nucleus * cytoplasm Nucleoplasm : Liquid like cytoplasm , within nucleus . Cell membrane ( plasma membrane) Semipermesble membrane of lipids and proteins Cell membrane: Made of phospholipid bilayer , hydrophilic ends of the outer layer facing external environment , the inner layer facing inside the cell , hydrophobic ends facing each other Hydrophilic : Water loving , can dissolve water Hydrophobic Hates water , can't dissolve water Selective Permeability with regards to size , charge , and solubility . (CELL STRUCTURE) Ribosomes : synthesize proteins from amino acids . Golgi apparatus : synthesize materials like proteins that are transported out of the cell . Near nucleus & consists of layers of membranes . Vacuoles : Sacs used for storage , digestion , and waste removal . One large in plant cells / Animal cells are small or have numerous . ove Vesicle : Has membrane , & can move materials within the cell . Cytoskeleton Microtubules that shape and support the cell Microtubules Part of cytoskeleton & help support cell . Made of protein . o Cytosol Liquid material within the cell . Mostly water & had floating materials . Cytoplasm Cytosol & organelles found within the plasma membrane , not within nucleus ! Cell membrane Barrier that keeps materials out of cell . Determines what's allowed in and out