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Study Guide Answers

1.     What is the definition of a unicellular organism?
     An organism composed of only one cell.
2.     What is a prokaryote?
     A cell whose nucleus is not membrane bound
3.     Where is genetic information stored in the form of DNA?
     The nucleus
4.     What is the function of the nuclear membrane?
     It encloses the nucleus.
5.     What is in the nucleus and contains RNA?
     Nucleolus
6.     What houses all organelles of the cell?
     The plasma membrane
7.     What allows molecules to pass through the cell membrane?
     Phospholipid bilayer
8.     What type of cell has a membrane bound nucleus?
     Eukaryote
9.     What are ribosomes?
     The sites of protein synthesis
10.     What aids in lipid synthesis, carbohydrate metabolism and detoxification of drigs and toxins?
     Smooth Endoplasmic Reticulum
11.     What is the job of the Golgi apparatus?
     It stores molecules and ships them out of the cell.
12.     What is known as the cleanup crew of the cell?
     Lysosomes
13.     What stores water, salts, proteins and carbohydrates in a plant cell?
     Vacuole
14.     What is the powerhouse of the cell, the cite of cellular respiration?
     Mitochondria
15.     What is ATP?
     Adenosine Triphosphate
16.     What allows for a large surface area within the mitochondrial matrix?
     Cristae
17.     What do chloroplasts do?
     Contain chlorophyll and produce energy
18.     What is composed of structural elements such as microtubules and microfilaments?
     Cytoplasm
19.     _____________________ is a replicate when a cell divides
     Centrioles
20.     What aids in the movement of a cell's cytoplasm?
     Microfilaments
© Educational Video Network, Inc. 2005 - www.evndirect.com
Your leading source for curriculum-based educational videos and DVDs.