BY 115 Human Anatomy SI Faith Leonard fkaylene uab edu 256 841 2663 Week 2 Cells Answers 1 List the NON MEMBRANOUS organelles of the cell Cytoskeleton microvilli centrioles cilia flagella ribosomes 2 List the MEMBRANOUS organelles of the cell Mitochondria nucleus endoplasmic reticulum golgi apparatus lysosomes peroxisomes 3 Label the picture of the cell BY 115 Human Anatomy SI Faith Leonard fkaylene uab edu 256 841 2663 4 Know the functions for each part of a cell Function Part of the Cell Microvilli Secretory Vesicles Cytosol Lysosome Centrosome Centriole Chromatin Nucleoplasm Nucleolus Nuclear Envelope Cytoskeleton increases surface area to facilitate absorption of extracellular materials transports certain cell secretions produced by the golgi apparatus or endoplasmic reticulum distributes materials by diffusion stores glycogen pigments and other materials removes damaged organelles or pathogens from inside the cell essential for movement of chromosomes during cell division also helps with the organization of microtubules in the cytoskeleton involved in the development of spindle fibers in cell division the material of which the chromosomes of organisms are made of It consists of protein RNA and DNA is completely enclosed within the nuclear envelope highly gelatinous is a sticky liquid that supports the chromosomes and nucleoli site of rRNA synthesis and assembly of ribosomal subunits stores genetic material surrounds the nucleus and is made up of two lipid bilayer membranes strength supports the cell controls movement of cellular structures and materials BY 115 Human Anatomy SI Faith Leonard fkaylene uab edu 256 841 2663 Plasmalemma isolation protection sensitivity supports the cell controls the entrance and exit of materials in the cell SELECTIVE PERMEABILITY stores alters and packages secretory products and lysosomal enzymes Golgi Apparatus Mitochondria produces 95 of the ATP a cell requires powerhouse of the Peroxisome Nuclear Pores Smooth ER Rough ER cell responsible for the catabolism of fats and other organic compounds neutralizes toxic compounds regulates the transportation of molecules between the nucleus and the cytoplasm stores calcium ions functions in lipid steroid and carbohydrate synthesis LACKS ATTACHED RIBOSOMES modification and packaging of newly synthesized cells anabolism requires energy to grow and build catabolism uses energy to break down BOTH CATABOLISM AND ANABOLISM ARE REQUIRED TO PRODUCE ENERGY AND REPAIR CELLS BY 115 Human Anatomy SI Faith Leonard fkaylene uab edu 256 841 2663 5 What is the difference between fixed ribosomes and free ribosomes Fixed ribosomes stay in the same spot and do not move They are located in the Rough Endoplasmic Reticulum but NOT the Smooth Endoplasmic Reticulum Free ribosomes can wander all around the cell They are located in the Cytosol 6 The nucleus functions to control metabolism This structure also stores and processes genetic information and controls protein synthesis 7 True or False Phospholipid tails are hydrophobic Multiple Choice Questions 1 are organelles that contain an unusual double layered membrane and functions in producing most of the ATP in the body A Ribosomes B Microvilli C Lysosomes D Mitochondria E Endoplasmic reticulum 2 Cells float in a watery medium called A cytoplasm B extracellular fluid C cytosol D cellular fluid E None of the answers are correct BY 115 Human Anatomy SI Faith Leonard fkaylene uab edu 256 841 2663 3 Substances that enter the cell usually do so through the A cholesterol B glycocalyx C glycolipids D integral proteins 4 The general functions of the plasma membrane include A physical isolation of the cell contents from the surrounding extracellular fluid B regulation of exchange of materials with the environment C sensitivity to changes in the extracellular fluid D structural support of the cell E All of the answers are correct 5 Because the plasma membrane restricts some substances and permits others through it is referred to as being A structurally rigid B impermeable C selectively permeable D freely permeable 6 Which of the following is a passive process for material movement across a plasma membrane A receptor mediated endocytosis B phagocytosis C exocytosis D active transport E facilitated diffusion BY 115 Human Anatomy SI Faith Leonard fkaylene uab edu 256 841 2663 7 An active process for transporting extracellular fluid such as water and small molecules across a plasma membrane is A phagocytosis B pinocytosis C osmosis D diffusion E None of the answers are correct 8 Carbon dioxide moves through the plasma membrane through the process of A diffusion B osmosis C facilitated diffusion D active transport E both diffusion and osmosis 9 Processes involved in the movement of substances across a membrane at the expense of ATP via exchange pumps are classified as A osmosis B diffusion C filtration D facilitated diffusion E active transport BY 115 Human Anatomy SI Faith Leonard fkaylene uab edu 256 841 2663 10 What is the term for the movement of water across a selectively permeable membrane from a low solute concentration to a high solute concentration A facilitated diffusion B osmosis C filtration D active transport E None of the answers are correct 11 Which of the following is another name for cytosol A intracellular fluid B gelatin C interstitial fluid D extracellular fluid 12 The protein synthesizing organelles are the A nucleus B Golgi apparatus C mitochondria D lysosomes E ribosomes 13 Which of the following is a non membranous organelle A Golgi apparatus B mitochondria C nucleus D centriole BY 115 Human Anatomy SI Faith Leonard fkaylene uab edu 256 841 2663 14 In the nucleus what is the special protein to which DNA strands are bound A tubulin B histone C cytokeratin D actin E myosin 15 Manufactured proteins from the rough endoplasmic reticulum are delivered to the Golgi apparatus by A cisternae B bulk transport C transport vesicles D ribosomal RNA E None of the answers are correct 16 increase surface area to facilitate absorption of extracellular materials A Cilia B Microvilli C Flagella D Centrioles E Mitochondria BY 115 Human Anatomy SI Faith Leonard fkaylene uab edu 256 841 2663 17 Peripheral proteins are attached to the surface of the plasma membrane while are embedded within the membrane A histone proteins B lysosomal proteins C transport vesicles D integral proteins E peroxisomal proteins 18 Channels in the plasma membrane that can open or close to regulate the passage of