NGSS HS-LS1-2, 3
DCI- LS1-A
NGSS HS-LS1-2, 3
DCI- LS1-A
To act as an effective coolant in a car's radiator, a substance has to have the capacity to absorb a great deal of heat. You have a reference book with tables listing the physical properties of many liquids. In choosing a coolant for your car, which table would you check first?
Use the following fisgure to answer the question.
Based on your knowledge of the polarity of water molecules, the solute molecule 'A' depicted is most likely ________.
If each of the water molecules in the diagram had all of its potential hydrogen bonding sites filled, like the water molecule in the center of the diagram, what would be the total number of water molecules represented?
The water molecules in the diagram are attracted to the cell walls of water-conducting cells by adhesion due to hydrogen bonds. What conclusion is supported by this information?
Hydrophobic substances such as vegetable oil are _____.
A compound contains carboxyl groups (COOH) as its predominant functional group. Which of the following statements is true concerning this compound?
Use the following figure to answer the question.
The molecule illustrated in the figure ________.
Which molecule has both hydrophilic and hydrophobic properties and is found in plasma membranes?
A new organism is discovered in the forests of Costa Rica. Scientists there determine that the polypeptide sequence of hemoglobin from the new organism has 72 amino acid differences from humans, 65 differences from a gibbon, 49 differences from a rat, and 5 differences from a frog. These data suggest that the new organism is more closely related to _____.
The structural level of a protein least affected by a disruption in hydrogen bonding is the
You disrupt all hydrogen bonds in a protein. What level of structure will be preserved?
primary structuretertiary structurequaternary structure
Cooking oil and gasoline (a hydrocarbon) have no affinity for water because they _____.
Humans can digest starch but not cellulose because ________.
Enzymes that break down DNA catalyze the hydrolysis of the covalent bonds that join nucleotides together, as opposed to separating hydrogen bonds. What would happen to DNA molecules treated with these enzymes?
Use the following figure to answer the question.
The chemical reaction illustrated ________.
CCC: Structure & Function
In 2006, Roger Kornberg was awarded the Nobel Prize in Chemistry for using the X-ray crystallography to determine the 3-D shape of RNA polymerase II protein, which binds to the DNA double helix and synthesizes RNA.
Results: Using data from X-ray diffraction patterns, as well as amino acid sequence determined by chemical methods, researches built a 3-D model of the complex with the help of computer software.
Conclusion: Analysis of the model led to a hypothesis about the functions of different regions of RNA polymerase II protein.
Use evidence from the model to identify elements of secondary structure in the RNA polymerase II protein.
Make a claim predicting the characteristics of the amino acids located at the part of the RNA polymerase II protein that binds with DNA.
Explain the reasoning behind your claim.
Given that the function of egg yolk is to nourish and support the developing chick, specifically explain why egg yolks are so high in fat, protein, and cholesterol.
This diagram shows a protein embedded in the phospholipid bilayer of the membrane. Portions of the protein extend into the extracellular and cytoplasmic sides of the membrane.
Which characteristic best describe the side chains in the part of the protein in contact with the phospholipid tails of the membrane?
Predict what would happen if the side chains that are in contact with the phosopholipid tails of the membrane were to be replaced with the amino acids serine and threonine.
After a cow is given antibiotics to treat a bacterial infection, a vet gives the animal a drink of 'gut culture' containing various prokaryotes. Why is this necessary? Use evidence from the diagram to explain.
