Biology 101, Exam 2 with latest updated test.

Biology 101, Exam 2 with latest updated test. Three cell parts found in all cells? - correct answers.DNA, plasma membrane, and cytoplasm or ribosomes What is the cell theory? - correct answers.The cell is the basic unit of life, all living things are made up of one or more cells, and all cells come from the reproduction of other cells Cells that do not have a nucleus are: - correct ryotes DNA in bacterial/prokaryotic cells forms a: - correct e DNA in eukaryotic cells are: - correct r Why are cells small? - correct answers.Cells do not get very large because the surface area to volume ratio must be high to allow for the ready exchange of materials in and out of the cell What three cell parts are found ONLY in plant cells? - correct wall, chloroplasts, and the large/central vacuole What is Endosymbiosis? - correct answers.The theory that some prokaryotic cells engulfed other prokaryotic cells thus forming membrane-bound structures (like mitochondria or chloroplasts) and ultimately giving rise to eukaryotic cells What is the organelle site of the reaction called CELLULAR RESPIRATION in eukaryotic cells? - correct answers.Mitochondria What do you call the site of PROTEIN and LIPID SYNTHESIS in eukaryotic cells is an ENDOMEMBRANE SYSTEM? - correct Endoplasmic Reticulum What can you find in the nucleus? - correct nucleolus and DNA How can you distinguish between the ROUGH E.R. and the SMOOTH E.R.? - correct presence of RIBOSOMES in the rough E.R. What are the three structures that enable cells to move? - correct , flagella, and psuedopods What is found within the CHLOROPLASTS and is the site of PHOTOSYNTHESIS? - correct koids What are the folds within the MITOCHONDRIA called? - correct ae What are cytoplasmic bridges found between PLANT cells? (holes in the CELL WALL) - correct odesmata What are the cytoplasmic bridges found between ANIMAL cells? (openings in the CELL MEMBRANES) - correct junctions Which organelle contains DIGESTIVE ENZYMES? - correct lysosome The lysosome is produced by the pinching off of portions of the membranes of the: - correct answers.Golgi bodies/apparatus What is the site of PROTEIN SYNTHESIS? - correct answers.Ribosomes What is the largest CYTOSKELETON component? - correct microtubules What are the structures involved in CELL MOVEMENT that are made up of "9+2" microtubules? - correct answers.Cilia and Flagella What are the pair of structures that are made up of 9 triplets of microtubules? - correct centrioles Centrioles are involved in the movement of chromosomes during cell division and found only in: - correct answers.Animal cells Describe the make-up of a CELL MEMBRANE - correct answers.The cell membrane is made of a bilayer of PHOSPHOLIPIDS, with PROTEINS floating in them Describe a PHOSPHOLIPID - correct answers.The hydrophilic PHOSPHATE HEADS face outward while the hydrophobic FATTY ACID TAILS face inward What is the simplest type of passive transport across the membrane? What does it do? - correct sion it allows the passage of non polar molecules across phospholipids What are two non polar molecules that pass across phospholipids? - correct answers.Carbon DiOxide (CO2) and Oxygen (O2)