Biology EOC Review 1

Protein synthesis occurs on which cellular organelle?

• Mitochondria

• Ribosome

• Chloroplast

• Golgi Body

What is the most accurate description of a eukaryotic cell?

• Moves using cilia

• Contains a nucleus

• Produces food by photosynthesis

• Reproduces only by binary fission

Amino Acids make up which macromolecule?

• Nucleic Acids

• Carbohydrates

• Lipids

• Proteins

How does the reduction in activation energy by an enzyme affect a chemical reaction?

• the products are not stable

• the reaction proceeds at a faster rate

• less energy is gained from the reaction

• the reaction is less efficient when the enzyme is present

What must occur during the cell cycle to ensure proper division of the chromosomes?

• the cell must grow in size

• the mitochondria must divide

• the DNA of the cell must replication

• The cell membrane must dissolve

A delay in warm spring weather could result in decreased populations of primary consumers. Why?

• A decrease in the availability of producers

• An increase in competition with secondary consumers

• A decrease in the local concentration of atmospheric oxygen

• An increase in the activity of scavengers and decomposers

Which would increase the carrying for a deer population in a forest ecosystem?

• A decrease in parasites

• A decrease in predators

• A decrease in producers

• A decrease in competitors

Which environmental disturbance would most likely result in lichens colonizing an area?

• The burning of a forest

• Abandoning farm fields for many years

• The melting of a glacier that exposes rock

• Clearing a meadow for new construction

As energy moves through the pyramid, the amount of available energy…

• Increases as the size of the organism increases

• Doubles as it moves up each trophic level

• Remains the same as it is transferred to the next level

• Decreases because it is released as heat in the environment

Which of these could cause the amount of carbon dioxide in the atmosphere to decrease?

• Increased burning of fossil fuels

• Increased numbers of decomposers

• Increased numbers of producers

• Increased respiration in animals