SA-Practice AP Biology Exam (from Course Description)

SA-Practice AP Biology Exam (from Course Description)

Assessment

Quiz

Biology

11th - 12th Grade

Medium

NGSS
HS-LS1-3, HS-LS4-5, HS-LS2-3

+17

Standards-aligned

Created by

Sahar ahmad

Used 11+ times

FREE Resource

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40 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

By discharging electric sparks into a laboratory chamber atmosphere that consisted of water vapor, hydrogen gas, methane, and ammonia, Stanley Miller obtained data that showed that a number of organic molecules, including many amino acids, could be synthesized. Miller was attempting to model early Earth conditions as understood in the 1950s. The results of Miller's experiments best support which of the following hypotheses?

The molecules essential to life today did not exist at the time Earth was first formed.

The molecules essential to life today could not have been carried to the primordial Earth by a comet or a meteorite.

The molecules essential to life today could have formed under early Earth conditions.

The molecules essential to life today were initially self-replicating proteins that were synthesized approximately four billion years ago.

Tags

NGSS.HS-LS1-6

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Simple cuboidal epithelial cells line the ducts of certain human exocrine glands. Various materials are transported into or out of the cells by diffusion. (The formula for the surface area of a cube is 6 x S2, and the formula for the volume of a cube is S3, where S = the length of a side of the cube.)


Which of the following cube-shaped cells would be most efficient in removing waste by diffusion?

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3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

When DNA replicates, each strand of the original DNA molecule is used as a template for the synthesis of a second, complementary strand. Which of the following figures most accurately illustrates enzyme-mediated synthesis of new DNA at a replication fork?

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4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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The following is a food web for a meadow habitat that occupies 25.6 km2. The primary products' biomass is uniformly distributed throughout the habitat and totals 1,500 kg/km2.


Developers have approved a project that will permanently reduce the primary producers' biomass by 50 percent and remove all rabbits and deer.


Which of the following is the most likely result at the completion of the project?

The biomass of coyotes will be 6 kg, and the biomass of hawks will be 0.5 kg.

The biomass of coyotes will be dramatically reduced.

The coyotes will switch prey preferences and outcompete the hawks.

There will be 50 percent fewer voles and 90 percent fewer hawks.

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

NGSS.HS-LS2-6

NGSS.HS-LS4-5

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A pathogenic bacterium has been engulfed by a phagocytic cell as part of the nonspecific (innate) immune response. Which of the following illustrations best represents the response?

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6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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The diagram shows the progression of ecological events after a fire in a particular ecosystem. Based on the diagram, which of the following best explains why the oak trees are later replaced by other trees?

Eventually the other trees grow taller than the oak trees and form a dense canopy that shades the understory.

Oak trees alter the pH of the soil, making the forest better suited for shrubs and other trees.

Roots of shrubs proliferate in the soil of the forest and prevent the oak trees from obtaining water.

Oak trees succumb to environmental pollutants more readily than do either the shrubs or the other trees.

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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Lactose digestion in E. coli begins with its hydrolysis by the enzyme β-galactosidase. The gene encoding β-galactosidase, lacZ, is part of a coordinately regulated operon containing other genes required for lactose utilization.


Which of the following figures correctly depicts the interactions of the lac operon when lactose is NOT being utilized? (The legend defines the shapes of the molecules illustrated in the options.)

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