AP Biology: Socrative Warmups

An investigator wants to understand whether a newly found membrane is involved in membrane transport of a certain particle. which investigation will help determine whether the new membrane protein is a channel protein involved in membrane transport?

add more of the proteins to the plasma membrane and measure the rate of the particle movement

Which of the graphs below best represents the predicted change in mass over time of the dialysis bag in the beaker to which albumin was added?

b (graph with straight line then decrease in mass)

Which of the following descriptions of cell type I and cell type II are most consistent with the data?

cell type 1: animal cell surrounded by a plasma membrane only cell type 2: plant cell surrounded by a plasma membrane and a cell wall

What evolutionary advantage does compartmentalization of core metabolic processes offer eukaryotes?

evolution of a nucleus in eukaryotes separates the processes of transcription and translation and they can be regulated separately

All of the following changes would be likely to decrease the rate of transpiration at 8 A.M except

increasing the water potential of the soil

The team wants to extend the research project. What should the team of students do next to obtain data that are more conclusive?

repeat the process with other salt concentrations

Based on the model presented in figure 1, which of the following changes will most likely result from a depletion of available ATP stores inside the cell?

the na+ concentration inside the cell will increase

The diagram above represents a typical rod-shaped bacterium. Which of the following best describes a feature shown in the diagram that is unique to archaea and bacteria?

the organism does not have a nuclear membrane surrounding its genetic material

Which of the following best describes how the ratio of the density of stomata per CO2 concentration changes as the CO2 concentration decreases?

the ratio decreases from 0.86 to 0.63, because fewer stomata are needed at higher CO2 concentrations

What additional procedure would best help determine whether these movements are due to active transport or passive transport?

use two additional treatments, one containing only ethyl alcohol and one containing only acetate. include a substance known to block ATP use by the plasma membrane. compare the graphs of these two treatments to the original graph