Works Cited Author Website/Source Right to use work Date Retrieved developed in March 1999 The Science Spot http://sciencespot.net/index.html 7/21/10 Mrs. Stephanie Fazio Last revised in June 2010 Ms. Fazio's Living Environment Webpage 08/3/2010 Pam Freitag Directly from person Verbal 11/2/10 Kerin Myer Directly from person Verbal 11/2/10 Miller & Levine Textbook (Biology Pearson Ed) Textbook Permission for educators 9/10/10 Christy Sullivan Directly from person Verbal 9/10/10 Ken Nyer Directly from person Verbal 9/10/10 Ms. Blanarovich Website Minisink Valley High School On website and lab 10/1/10 James M. Buckley Living Environment Topic Sequence and Links 9/20/11 Colleen Fitzpatrick Directly from person Verbal 9/20/11 Unknown 9/10/11 Ken Nyer (Modified from (Modified from 9/10/11 Mary Coyne Directly from person Verbal 7/30/12 Barbara Lucia Directly from person Verbal 7/30/12
Scavenger Hunt Items Something unusual A bone An echinoderm – “spiny skin” and 5 fold symmetry An arachnid – spider A nonflying insect A mollusk – snail or slug An annelid – segmented worm A nematode – round worm A flying insect A pupa (resting stage between a larva and an adult) A larva – immature insect Something round Something soft Something white Something that makes noise A feather (detached from a bird) Conifer Pinecone Seven pieces of trash or litter left by humans Something beautiful Chewed plant part (not chewed by humans) An owl pellet A fungus from a tree A fungus from the ground A gall – abnormal outgrowth of plant tissue ***You must take a good picture of at least 25 items A monocot leaf – has parallel veins in leaf A dicot leaf – “branching” veins in leaf Scat – Animal droppings Something large Something straight A wind dispersed seed An animal dispersed seed 50 of any item A Thorn An example of camouflage A solar energy trap An animal track A frond – large divided leaf (fern) A palmate leaf – leaf resembling an open hand A symbiotic relationship between 2 organisms Flower Seed Something red Something biotic A producer A consumer Something abiotic Food chain of three organisms Primary consumer A host
Presence in human body (%) Name of chemical element Chemical Symbol Presence 65 Part of water ->in all liquids and tissues, bones, proteins,etc 18 is synonymous with life. Its central role is due to the fact that it has four bonding sites that allow for the building of long, complex chains of molecules. Moreover, carbon bonds can be formed and broken with a modest amount of energy, allowing for the dynamic organic chemistry that goes on in our cells 10 Part of water in all liquids and tissues, bones, proteins,etc 3 is found in many organic molecules, including the amino acids that make up proteins, and the nucleic acids that make up DNA 1.5 is the most common mineral in the human body — nearly all of it found in bones and teeth. Ironically, calcium's most important role is in bodily functions, such as muscle contraction and protein regulation. In fact, the body will actually pull calcium from bones (causing problems like osteoporosis) if there's not enough of the element in a person's diet. Essential for the proper functioning of organs lungs, kidney, liver, thyroid, brain, muscles, heart, bones 1 is found predominantly in bone but also in , which provides energy in cells for driving chemical reactions. 0.35 is an important (meaning it carries a charge in solution). It helps regulate the heartbeat and is vital for electrical signaling in nerves. Found in proteins (enzymes) 0.25 is found in two amino acids that are important for giving proteins their shape.
Name ___________________________ Date Due ________________ Cell Size Lab Purpose: To determine the size of three different types of cells. The cells are human red blood cells, human cheek cells and onion cells. Hypothesis: The _________ cell is the largest because _____. The ___ cell is middle sized because _____. The ____cell is the smallest because _____. Materials: List all the materials used during this lab investigation. Procedure: There will be 3 sections, one for each cell type. For each cell type write the exact step by step instructions for what you did. Data: The data table should have the size of each cell under low power including the calculations, and the size and calculations under high power. You may design the table as you wish. Analysis: Try to determine why the largest cell is the largest &/or why the smallest is smallest. (Hint: Think about function). Under which magnification do you think you got the most accurate results? Why? List at least 4 possible sources of error using this measurement method. The red blood cell is unusual in its internal structure. What is the unusual feature? Conclusion: Was your hypothesis correct? Discuss results. At the end of the lab attach drawings of exactly what you see under low power and under high power. Use colored pencils and label each drawing with what it is and the magnification. I have “circle paper” you can use for this. The final lab report should have a cover.
name of the enzyme lactase was created by adding the suffix –ase to part of the name of the substrate lactose. ★ Circle the active site in the enzyme in the figure above An enzyme speeds up a chemical reaction which converts a substrate or substrates to a product or products. The products are released from the enzyme and the enzyme returns to its original state, so the enzyme is ready to act on another substrate molecule. Thus, an enzyme molecule can be reused over and over. For example, a single molecule of the enzyme lactase can speed up the digestion of many many molecules of lactose. ★ The following equation shows the digestion of lactose. Lactase Lactose --------- > Glucose + Galactose Use E to indicate the enzyme, S to indicate the substrate, and P to indicate the products. Circle the molecule that is a protein, and use arrows to indicate the molecules that are sugars. Experiment 1 - Can the sugar lactose be digested without any enzyme? To find out whether the enzyme lactase is needed to digest the sugar lactose, you will test whether lactose breaks down to glucose and galactose in two different conditions: (1) with no enzyme and (2) when the enzyme lactase is present. ★ First, predict what you think will happen. For each column, circle the equation that describes what you think will happen. Prediction with No Enzyme Prediction with the Enzyme Lactase No Enzyme Lactose -------- > Glucose + Galactose Or No Enzyme Lactose -------- > Lactose (no glucose produced) Lactase Lactose -------- > Glucose + Galactose Or Lactase Lactose -------- > Lactose (no glucose produced) To test whether your predictions are correct, you will use glucose test strips to test whether glucose has been produced. Procedure 1. One member of your group should prepare Tube 1 with 10 mL of lactose solution. 2. Another member of your group should prepare Tube 2 with 10 mL of lactose solution and 1 mL of lactase solution. Put on a glove, put your thumb on the top of the tube and turn the tube upside down several times to mix the two solutions. 3. Wait 3 minutes to allow time for lactose to break down to glucose and galactose.