14. Explain the four basic types of chemical reactions. Be sure to include a sample equation for each type. Describe how rate relationships and activation energy are important in chemical reactions.

7. QUALITATIVE ANALYSIS OF CARBOHYDRATES PRELAB QUESTIONS NAME 1. Identify the purpose of each test in the space provided. a) Benedict's test b) Seliwanoff's test c) Iodine test 2. A student ran an analysis on an unknown carbohydrate and observed the following results. The Benedict's test turned cloudy and the color changed from blue to brick red. The Sweliwanoff's test produced a light pink color after heating. The solution in the iodine test did not change color. a) Does the sugar contain an aldehyde or ketone? If so, which one? b) Is the unknown or simple or complex carbohydrate? 601

C) NUCLEIC ACID Sketch the general structure of a nucleic acid monomer and name all characteristic chemical groups: TETAAL Sketch the general structure of a nucleic acid polymer and name all characteristic chemical group: Name of bond between monomers: D) LIPID Sketch the general structure of a triglyceride molecule, name the characteristic chemical groups that form the molecule, and label the chemical linkages between the groups: inte imveneg Sketch the general structure of a phospholipid molecule, name the characteristic chemical groups that form the mol- ecule, and show how phospholipids align to create cell membranes. Name the characteristic that distinguishes all lipids from other large molecules:

Marks: 1 Stereochemistry is the study of: Choose one answer. a. organic chemistry b. two-dimensional chemistry c. theoretical chemistry d. three-dimensional chemistry

What effect do restriction enzymes have on DNA? Select one: Restriction enzymes repair damaged portions of DNA. O Restriction enzymes cleave DNA at specific sequences into fragments. Restriction enzymes give a negative charge to DNA. Restriction enzymes duplicate DNA.

Why is melphalan a good cancer drug?

C3H60 + H30+ are the reactants what are the products?

What is an antioxidant enzyme? Why is catalase considered to be an antioxidant enzyme?

13. Some fungi live as single-celled organisms. Group of answer choices True False 14. For a fungus, a fruiting body such as a mushroom serves which function? Group of answer choices Allowing asexual reproduction by fragmentation Spreading spores produced during sexual reproduction Causing disease by consuming tissues in an animal host Storing nutrients as a permanent organ in the fungus Question 15 What sort of diseases can be treated with antibiotics? Group of answer choices Cancers Diseases caused by viruses Diseases caused by fungi Diseases caused by bacteria Question 16 Which of the following is an example of a bacterium causing harm to another organism? Group of answer choices Tuberculosis in humans caused by Mycobacterium tuberculosis Protozoa in the genus Plasmodium causing malaria in humans Fungi in the genus Penicillium producing penicillin that kills nearby bacteria The ghost plant Monotropa uniflora stealing nutrients from fungi NOV 14 MacBe esc 80 O00 000 F1 F2

Please answer the following question: