March 15th SOL Review

Which pair of structures best shows that plant cells have functions different from animal cells?

• cytoplasm & mitochondria

• chloroplasts & cell walls

• ribosomes & cell membranes

• nuclei & centrioles

Students in a biology class thought the salt water would affect the movements of planeria. They put 25 planeria in salt water and recorded their observations. Which flaw was in the design of the experiment?

• there is no control

• there was no hypothesis

• the sample was too big

• the procedure was too complicated

A student wants to view cells under the compound microscope at a total magnification of 400x. If the eye piece is 10x, which of the following objective lenses should be used?

• 100x

• 40x

• 4x

• 10x

In which biome do the evaporation rates exceed precipitation rates?

• grassland

• tropical jungle

• hardwood forest

• desert

The interaction pictured represents

• herbivory & decomposition

• energy & nutrient transfer

• respiration

• growth

What can be concluded from the graph?

• the amount of free energy produced in the reaction increases with an enzyme

• the enzyme is consumed during the course of the reaction

• the enzyme lowers the energy of activation for the reaction

• the reactants have less energy than the products

Scientists can use genetic information to identify people because it is unique to each person. Which specific characteristic is unique to an individual?

• shape of DNA molecules in cells

• number of chromosomes in each cell

• size of each chromosome in a cell

• the sequence of DNA nucleotides in cells

One way to increase the number of organisms in an endangered species is to let a few remaining individuals of the species breed. However, this breeding may also lead to species extinction because inbreeding over a short period of time may

• reduce genetic diversity

• produce a different species

• increase fertility

• increase beneficial mutations

A student is investigating the effect of plants on indoor air quality and states "If plants are added to an indoor environment, the air quality will improve." This is an example of

• an observation

• a procedure

• a theory

• a hypothesis

The diagram shows a section of a cell membrane that includes a channel protein. The function of this protein is to

• strengthen the outer boundary of a cell

• allow certain substances to enter or leave the cell

• connect reproductive cells during fertilization

• exchange organelles or chromosomes between specialized cells