What is the name of the bond that joins the monosaccharides in a polysaccharide?

What variables are controlled (held constant) in the above experiment?

Identify the microscope part labeled A. [partA] Identify the microscope part labeled B. [partB] Identify the microscope part labeled C. [partC]

Which sample(s) contain triglycerides? TEST SAMPLE A SAMPLE B SAMPLE C SAMPLE D Biuret + – – – Potassium iodide – – + – Benedict’s – – + + Translucence + + – –

What type of microscope is pictured? [microscope] What is the microscope part labeled A? [partA]  

  At the start of this experiment each of these tubes contained an acidic solution and a buffer. An equal amount of sodium hydroxide (NaOH) was then added to each solution. The results are shown here. Which tube (A, B or C) contained the best buffer? Explain your answer.

A civil engineer wanted the water to drain away from his completed construction project, so the design of the project needed to include the creation of a slope/angle away from the project.  The engineer was also concerned that with a slope significant soil erosion that might occur.  Soil erosion is the washing away of soil caused by water flow over its surface.   He designed an experiment in which he set up 5 trays with equal amounts of the same type of dry soil at different slopes.  He poured an equal amount of water over each tray, simulating rainfall that would be normal for the area.  He then collected, dried and weighed the amount of soil that ran off of each tray.  He repeated the experiment several times. The following is a data table showing the average of the results of his experiment. Tray Slope/Angle Soil Runoff (g) 1 0o 0 g 2 10o 8 g 3 20o 12 g 4 30o 50 g 5 40o 65 g   Write a hypothesis for this experiment.  

Convert the following:        643.5 cm = [number1] m      905.2 ml = [number2] liters      0.564 kg = [number3] g      8.72 m = [number4] mm      56789 m = [number5] km      3.499 g = [number6] mg    

The reaction above was run at varying temperatures.  The amount of carbon dioxide produced was measured and the results are shown in the following graph. How much carbon dioxide was produced at 40oC?

A sample of urease enzyme was heated to 100oC and then cooled. This sample of enzyme was then used to catalyze a reaction at 40o   This reaction did not produce any carbon dioxide product.  Why?  Explain what has happened to give this result.