Bellwork for this beautiful Monday Morning Get out a sheet of paper and copy down EXACTLY what you see on the board. Make two columns. You do NOT need to skip lines. Station 8: Station 9: Station 10: Station 11: 1. Station 12: 1. Station 13: 1. Station 14: Station 15: Station 2: Station 3: Station 4: Station 5: 1. Station 6: 1. Station 7: 1. Name: Station 1: 1. 2.

Today’s Activity: Review Stations You will walk around with a partner and answer the questions at each review station. You will have 1-2 minutes at each station. You MAY use your notes. Be sure to fill out the correct answers on the correct stations. You must complete each station—right or wrong—to receive ANY credit for today’s grade.

Station 1: Copy the standards and the Essential Question from the front board. 1. Standards: _________________ 2. Essential Question: _____________

Station 2: Label each biomolecule correctly. Use the following words: Lipid, Protein, Carbohydrate, DNA

Station 3: Answer the following questions. A enzyme is a biological _________ (catalyst/carbohydrate) because it __________ (increases/decreases) the speed of a reaction by __________ (increasing/decreasing) the energy needed. ____________ (DNA Polymerase/Helicase) unzips the DNA molecule before replication begins. ____________ (DNA Polymerase/Helicase) brings new nucleotides to the original DNA strands during replication

Station 3: Answer the following questions. A enzyme is a biological _________ (catalyst/carbohydrate) because it __________ (increases/decreases) the speed of a reaction by __________ (increasing/decreasing) the energy needed. ____________ (DNA Polymerase/Helicase) unzips the DNA molecule before replication begins. ____________ (DNA Polymerase/Helicase) brings new nucleotides to the original DNA strands during replication

Station 4: Complete the complementary strand for the DNA sequence below. A-T-A-A-T-C-G-A-G-A-G-A-T-T-C-A-A-T-C-G ______________________________ If there are 20% of a random strand of DNA is composed of adenine bases, what percent of the DNA is guanine? ______

Station 4: Complete the complementary strand for the DNA sequence below. A-T-A-A-T-C-G-A-G-A-G-A-T-T-C-A-A-T-C-G T-A-T-T-A-G-C-T-C-T-C-T-A-A-G-T-T-A-G-C ______________________________ If there are 20% of a random strand of DNA is composed of adenine bases, what percent of the DNA is guanine? __30%____

Station 5: In one sentence, answer the question below. Why does the DNA of a cell replicate before the cell divides to make a two new cells? ____________________ 1

Station 5: In one sentence, answer the question below. Why does the DNA of a cell replicate before the cell divides to make a two new cells? A cell replicates its DNA before it divides so that the two new cells EACH get a full set of DNA.

Station 6: Answer the question below in 1 sentence. All living things have DNA, but not all living things have the same DNA. Knowing this, what does the DNA of all living things have in common? ______________________ 1

Station 6: Answer the question below in 1 sentence. All living things have DNA, but not all living things have the same DNA. Knowing this, what does the DNA of all living things have in common? All living things have the A, T, C, G bases

Station 7: Answer the question below in 2 sentences. Why is the shape of DNA described as a double helix? (There are two reasons you should describe. Think about the two words!) ______________________ 1

Station 7: Answer the question below in 2 sentences. Why is the shape of DNA described as a double helix? (There are two reasons you should describe. Think about the two words!) It is “double” because there are two sides to the DNA. It is a “helix” because of its spiral shape.

Station 8: Fill in the blanks below. The two strands of DNA are said to be ________________ (opposites/complementary). This is true because of the ____ _______ rule. 1 2 (two words)

Station 8: Fill in the blanks below. The two strands of DNA are said to be ________________ (opposites/complementary). This is true because of the ____ _______ rule. 1 Base pairing

Station 9: Which of the following make up the backbone of DNA? Deoxyribose sugar Nitrogen base Phosphate group ______________ & _____________ 1 2

1 2

Station 10: Correctly match the monomers to the polymers. Use the following words: nucleotide, monosaccaride, amino acid, fatty acid Protein _______________ Carbohydrate _____________ Lipid: _______________ DNA: ______________

Amino acid monosaccharide Fatty acid nucleotide

Station 11: Look at the diagram below and focus on the last picture on the right. In one sentence, what does it mean that DNA replication is semi- conservative? ______________________________ 1

DNA replication is semi-conservative because at the end of replication, one of the strands is from the original DNA and one is the newly made strand. OLD NEW

Station 12: Read the information and answer the question. When you mix oil and water in a cup, they do not mix. When you mix food coloring and water in a cup, they do mix. This means that oil does not dissolve in water. What type of biomolecule is oil? __________________ 1

Lipid (oil is a fat)

Station 13: Which of the following did Miss Rosalind Franklin help to discover? - The function of DNA - How DNA was created - The structure of DNA ___________________ 1

1

Station 14: Fill in the blanks in the paragraph. Use the following words: antiparallel, double helix, complementary DNA is in the shape of a ______ ______. The two sides, or strands, of DNA are ___________ to one another. The direction of the DNA strands are said to be ________________ because they run in opposite directions, allowing the bases to bond in the middle with the backbone on the outside.

Station 14: Fill in the blanks in the paragraph. Use the following words: antiparallel, double helix, complementary DNA is in the shape of a ______ ______. The two sides, or strands, of DNA are ___________ to one another. The direction of the DNA strands are said to be ________________ because they run in opposite directions, allowing the bases to bond in the middle with the backbone on the outside. double helix complementary antiparallel

Station 15: Draw the nucleotide below and then label the three parts. 12 3

12 3 Phosphate group Nitrogen base Deoxyribose sugar