HMH Semester 1 Exam Review Quiz

Muscle organ ---- Muscle tissue ----- __________

• Muscle cells because they are the smallest unit

• Mitochondria because they provde energy

• Muscular system because the helt the body to move

The trachea has a layer of epithelial cells called the respiratory mucosa. It contains goblet cells that produce mucus. What is this an example of?

• A.    Cells working together to maintain homeostasis.

• A.    Organs working together to maintain homeostasis.

• A.    Cells working together to produce energy for the body.

Engineers are working to develop a new kind of artificial knee, which is used to replace damaged knees. Which of these would be considered a trade off of the artificial knee? 

• A.    The artificial knee reduces pain in people who have the knee. 

• A.    The new artificial knee is heavier than previous artificial knees to improve its lifespan.

• A.    The artificial knee can lead to infection when the knee is implanted.

1.     Most starfish turn their cardiac stomach to digest food. Which term applies to the cardiac stomach? 

• organ

• cell

• system

1.     Scientists are developing a new class of vaccines, known as nanovaccines, which can be stored at room temperature for six to ten months. A study found evidence that nanovaccines boost the immune response in mice. The scientists reported their initial findings to other scientists. What is the most logical next step in the nanovaccine development process? 

• A.    determine the best way to ship large amounts of the vaccine

• A.    produce larger quantities of vaccine for distribution by medical professionals

• A.    replicate the nanovaccine results in further animal studies

1.     Which steps will reduce the amount of an input to photosynthesis? Circle the letters of all the correct answers.

• A.    cover half of the plant’s stomata

• A.    place the plant in a low-oxygen environment

• A.    increase the carbon dioxide levels of the plant

1.     A researcher is comparing sugar molecules that a cell takes in with amino acid molecules that the cell produces. Circle the letters of the statements that are true about amino acids but not about sugars.

• always contain carbon

• B.  is an input in glycolysis

• B.  structure is coded for in DNA

• B.  can be used as an energy source

Which statement is accurate when comparing the reactants with the products? Circle the letter of the correct answer.

• The reactants have more mass than the products.

• B.  The reactants form more quickly than the products.

• B.  The bonds of the reactants contain more energy than the bonds of the products.

1.     A graph is created to show the energy changes occurring when breaking the polymer into two monomers. How would that graph differ from the one shown? Circle the letter of the correct answer.

• A. In the new graph the products would have more energy than the reactants.

• B.  In the new graph the products would have less energy than the reactants.

• B.  In the new graph the enzyme would increase the activation energy required.

1.     Using the information in the graph, circle the letters of all the correct statements.

• A. Energy is absorbed in this reaction.

• More energy would be released than absorbed in the reaction.

• B.  The enzyme raised the activation energy required for the reaction.