UNIT 1 TEST REVIEW

QUESTION 1

Maria is interested in starting a sunflower farming business. She purchased all of the necessary materials and started planting.. After 4 years, she noticed her sunflowers were not growing at the same rate. She needed to find out what was wrong.Which of the following would not be a reliable source for information on this topic?a. Use the internet to find out what Wikipedia recommendsb. Talk to an expert in the field of sunflower farmingc. Check the library for books about growing sunflowersd. Speak to a professor at a local university with expertise in

this subject

QUESTION 2

After some research, Maria is lead to believe that the containers she used to plant her sunflower seeds might not be large enough to support growth beyond 4 years.Which of the following might be a possible hypothesis for an experiment to prove what she believes?a. If I poke holes in the soil my sunflowers will grow largerb. If I move my sunflowers to get more sunlight they will

grow largerc. If I add extra water they will grow largerd. If I plant my sunflowers in larger containers they will

grow larger

QUESTION 3

Which of the following experiments would be the best way to prove or disprove Maria’s hypothesis?a. Plant some of her sunflowers in larger containers

and measure over a yearb. Plant all of her sunflowers in larger containers and

measure for a yearc. Get sunflower seeds and plant half in her usual

container and half in the new larger container and measure after 5 years

d. Plant only one of her plants to a larger container and measure for a year

QUESTION 4

Maria measured the height of her sunflowers every 2 months for over a year. What were Maria’s independent and dependent variables?

a. I= sunlight ; D= number of plants being measuresb. I= sunlight; D= container sizec. I= container size; D= plant growthd. I= amount of research; D= amount of water

QUESTION 5

What is the name of the bond that unites carbohydrates?a. Ester bondsb. Phosphodiester bondsc. Glycosidic Linkaged. Peptide bond

QUESTION 6

Which molecule has a pentose sugar, phosphate group and nitrogenous base as a monomer as well as storing and transmitting genetic information?a. Lipidsb. Carbohydratesc. Nucleic Acidsd. Proteins

QUESTION 7

Which molecule is the primary source of energy for living organisms?a. Carbohydratesb. Lipidsc. Proteinsd. Nucleic Acids

QUESTION 8

Which biomolecule is a secondary source of energy and is used as long term energy storage?a. Nucleic acidsb. Carbohydratesc. Lipidsd. Proteins

QUESTION 9

Looking at the graph above, at what pH is the enzyme most effective?a. 6.8b. 7.2c. 6.9d. 7.1

QUESTION 10

A _____________ will be affected if the order a its monomers is changed.a. Proteinb. Mineralc. Starchd. Lipid

QUESTION 11

Plants store their energy in the form of:a. Fatty acidsb. Glycogenc. Amino acidsd. Starch

QUESTION 12

Which molecule is not correctly paired with their monomer?a. Carbohydrate – monosaccharideb. Lipid – disaccharidec. Nucleic acid – nucleotided. Protein – amino acid

QUESTION 13

The wax that protects apples and gives it glossy appearance belongs to which organic molecule group?a. Proteinb. Lipidc. Carbohydrated. Nuclei acid

QUESTION 14

What are the building blocks for lipids?a. Glycerol and fatty acidsb. Amino acidsc. Nucleotided. Triglycerides

QUESTION 15

When starches are broken down, they are broken down into:a. Nucleotidesb. Monosaccharidec. Amino acidsd. Glycogen

QUESTION 16

What kind of bond holds proteins together?a. Glycosidic linkageb. Phosphodiester bondsc. Peptide bondsd. Ester bonds

QUESTION 17

Why is the shape of an enzyme important?a. Enzymes can be found in all living thingsb. Enzymes are specific to a substratec. Enzymes can work in all levels of pHd. Enzymes can work in all salinity levels

QUESTION 18

What is the function of enzymes in regards to activation energy?a. Causes more hydrogen bonds to be formedb. Changes the pH of a solutionc. Increases the activation energyd. Decreases the activation energy

QUESTION 19

Which molecule does the diagram represent?

a. Starch

b. Fatty acid

c. DNA

d. glycerol