PAP Midterm Review (Cumulative) incomplete

Two biomolecules are shown, which of the following best describes these molecules?

• Molecule X and Molecule Y are both carbohydrates.

• Molecule X is a nucleic acid, and Molecule Y is a carbohydrate.

• Molecule X and Molecule Y are both nucleic acids.

• Molecule X is a carbohydrate, and Molecule Y is a nucleic acid.

How are ferritin and glycogen similar in their primary functions for an organism?

• Both store materials needed by the organism.

• Both store energy used by the organism.

• Both support the structure of the organism.

• Both store information for the organism.

Niles Eldredge and Stephen Jay Gould researched the lenses of the eyes of fossil trilobites of different species. In 1972 they published a paper in which they described the tendency of a species to remain the same until a sudden change in the environment causes a new related species to appear.

Which hypothesis was most challenged by the work of Eldredge and Gould?

• Redi’s hypothesis that spontaneous generation does not occur

• Haeckel’s hypothesis that embryological development mimics the evolution of species

• Wallace’s hypothesis that geography affects the distribution of species

• Darwin’s hypothesis that the development of species is a slow, gradual process

Which of the following represents evidence that could be used to support the claims about this product?

• Complex carbohydrates are found in vegetables and grains, which are good sources of fiber, vitamins, antioxidants, and minerals. Vegetables and grains are known to reduce the risk of heart disease.

• Some nutritional supplements provide vitamins and minerals that are missing from a person’s diet. These types of nutritional supplements contain important nutrients that reduce the risk of malnutrition.

• Consuming enzymes specific for carbohydrate digestion helps the body digest complex carbohydrates more quickly in the stomach and small intestine.

• Some nutritional supplements add beneficial bacteria to a person’s diet. These bacteria populate the stomach and prevent carbohydrate digestion.

Students are given data from an investigation that identified some of the chemical elements present in four different samples.

Which sample was most likely DNA?

• Sample 1

• Sample 2

• Sample 3

• Sample 4

Students were given a list of seven elements and asked to identify the four elements that are most abundant in biomolecules. Which table correctly identifies the four most-abundant elements in biomolecules?

• 
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Choose the terms that complete the diagram at X and Y.

• X-oxygen, Y-carbon dioxide

• X-energy, Y-carbon dioxide

• X-water, Y-energy

• X-energy, Y-energy

A teacher set up a demonstration with 5 fermentation flasks filled with the solutions listed below. She added 10 ml of yeast solution to each flask, and students observed the flasks every 10 minutes for the rest of the class period.

What is the purpose of Flask 1 in this investigation?

• Independent variable

• Control group for comparison

• Dependent variable

• Extra flask in the event of breakage

What is the purpose of ATP in both cellular respiration and photosynthesis?

• To breakdown glucose to release energy

• To work as an enzyme

• To absorb electrons from water

• To provide energy for cell processes

Where does the synthesis of new molecules take place during cellular respiration?

• Chloroplast

• Mitochondria

• Cytoplasm

• Thylakoid Membrane