EOC Review Quiz 2

A strand of DNA has the sequence GATTACA. What will be the sequence of the complementary strand of DNA?

• ACATTAG

• GATTACA

• CTATTGA

• CTAATGT

Which example represents a process that requires ATP for energy?

• simple diffusion of hydrogen ions back into the mitochondria

• facilitated diffusion of glucose into a cell

• osmosis of water from the soil into plant roots

• transport of ions against the concentration gradient.

In a species of mouse, brown fur (B) is dominant over white fur (b). If a heterozygous brown mouse is crossed with a white-colored mouse, what would be true of their offspring?

• 100% BB

• 25% BB, 25% bb, and 50% Bb

• 50% Bb and 50% bb

• 75% BB and 25% Bb

Which of the following are reactants of photosynthesis?

• water adn glucose

• glucose and carbon dioxide

• carbon dioxide and water

• oxygen and water

Using a microscope in the lab, Jill observed two unknown cells: Cell 1 and Cell 2. Cell 1 she identified as a plant cell and cell 2 as an animal cell. Her teacher told her she identified them correctly. What did Jill most likely observe to correctly identify the cells?

• Cell 2 had a cell membrane, cell 1 did not

• Cell 1 had a cell wall, cell 2 did not

• Cell 2 had a chloroplast, cell 1 did not.

• Cell 1 had a nucleus, cell 2 did not.

Which of the following best explains why enzymes are necessary for many cellular reactions?

• Enzymes supply the oxygen necessary for the reactions

• Enzymes change reactants from solids to liquids during reactions

• The reactions take up too much space in the cell if the enzymes are missing.

• The reactions are too slow to meet the needs of the cell if enzymes are missing.

Why is a mushroom considered a heterotroph?

• It creates different types of food.

• It makes food through photosynthesis

• It makes food through chemosynthesis

• It obtains nutrients from its environment.

After a volcano erupts and destroys an ecosystem, a few organisms are able to begin growing from teh decaying organic matter left behind. What do we call those organisms that are able to grow in little to no soil that first appear?

• adaptors

• pioneer species

• non-vascular plants

• decomposers

A student is reading about the chemical composition of a category of molecules. The molecules are found as repeating units of proteins.

What type of molecule are the repeating units?

• amino acids

• fatty acids

• monosaccharides

• nucleotides

As human population growth continues, humans are searching for more places to create habitats. This includes cutting down vast numbers of trees to clear land on which to build.

According to the diagram, which statement best represents how deforestation will impact the carbon cycle?

• The rate of photosynthesis will increase, positively impacting the cycle.

• The rate of photosynthesis will decrease, positively impacting the cycle.

• The rate of photosynthesis will decrease, negatively impacting the cycle

• The rate of photosynthesis will increase, negatively impacting the cycle.