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Study with Quizlet and memorize flashcards containing terms like cell thoery, Prokaryotic cell characteristics, Eukaryotic cell characteristics and more.
Using your five senses to factually describe a situation. Quantitative observations involve numbers (like counting or measuring) and qualitative observations involve descriptions that are not easily counted or measured (like color or texture). inference.
Study with Quizlet and memorize flashcards containing terms like What is a suggested and testable explanation for an event called? A Discovery B Hypothesis C Scientific method D Theory, Which branch of science is NOT considered a natural science?
Download free-response questions from past AP Biology exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.
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The Na+ /K + ATPase pumps ions against their concentration gradients. This requires an input of (metabolic) energy.
(b) Identify a dependent variable in the experiment represented in Figure 1. • The number of cells Justify the use of normal human kidney NHK cells as a control in the experiments. Accept one of the following: It allows the scientists to determine the effect of PKD on the cells’ responses to (various concentrations of) ouabain. It allows the scie...
point point Accept one of the following: Increasing concentrations of ouabain result in decreasing ATPase activity (in both types of cells). There is an inverse relationship/negative correlation between the concentration of ouabain and the ATPase activity (in both types of cells).
Note: Student samples are quoted verbatim and may contain spelling and grammatical errors.
Questions 1 and 2 are long free-response questions that require about 25 minutes each to answer. Questions 3 through 6 are short free-response questions that require about 10 minutes each to answer. Read each question carefully and completely. Answers must be written out in paragraph form.
May 21, 2020 · AP Biology. Update (Tuesday, April 20, 2021): The tutorial video and resources of Unit 6.3 are live now! Unit 1: Chemistry of Life. Unit 2: Cell Structure and Function. Unit 3: Cellular Energetics. Unit 4: Cell Communication and Cell Cycle. Unit 5: Heredity. Unit 6: Gene Expression and Regulation. Unit 7: Natural Selection.
