ap biology essay scoring guidlines respiration

For the investigation, adult male mice were individually housed in cages in a soundproof room at 25°C. Each mouse was provided with adequate food, water, bedding material, and a running wheel. The mice were exposed to daily periods of 12 hours of light (L) and 12 hours of dark (D) (L12:D12) for 14 days, and their
AP® Biology. 2013 Scoring Guidelines. The College Board. The College Board is a mission-driven not-for-profit organization that connects students to college success and opportunity. Founded in 1900, the College Board was created to expand access to higher education. Today, the membership association is made up of
Directions: Questions 1 and 2 are long free-response questions that require about 22 minutes each to answer and are worth 10 points each. Questions 3–8 are short free-response questions that require about 6 minutes each to answer. Questions 3–5 are worth 4 points each and questions 6–8 are worth 3 points each.
AP® BIOLOGY. 2014 SCORING GUIDELINES. Question 1. Trichomes are hairlike outgrowths of the epidermis of plants that are thought to provide protection against being eaten by herbivores (herbivory). In a certain plant species, stem trichome density is genetically determined. To investigate variation in stem trichome
AP® BIOLOGY. 2006 SCORING GUIDELINES. Question 1. A major distinction between prokaryotes and eukaryotes is the presence of membrane—bound organelles in eukaryotes. C a) Describe the ... 0 Indicate two membranes with either: 0 cellular or aerobic respiration (Krebs, ETS). Mitochondria — infolding of the inner
2009 AP® BIOLOGY FREE-RESPONSE QUESTIONS (Form B). BIOLOGY. SECTION II. Time—1 hour and 30 minutes. Directions: Answer all questions. Answers must be in essay form. Outline form is not acceptable. ... Many organisms require a continuing source of oxygen for respiration. Discuss important structural and.
2005 AP* BIOLOGY FREE-RESPONSE OUESTIONS. BIOLOGY. SECTION II. Time—1 hour and 30 minutes. Directions: Answer all questions. Answers must be in essay form. ... AP* BIOLOGY. 2005 SCORING GUIDELINES. Ouestion 1 (continued). • Control—identification of a control treatment, e.g., no sugar, no yeast, pH 7.
AP BIOLOGY EXAM ESSAY (FREE RESPONSE) QUESTIONS. General .... Describe the roles of membranes in the synthesis of ATP in either cellular respiration or photosynthesis. #9 (2007) .... Select one of the criteria stated above and describe experimental evidence used to determine that DNA is the hereditary material.
For energy, muscle fibers will switch from aerobic respiration to anaerobic respiration, which produces lactic acid. Buildup of lactic acid triggers a cramp during exercise. (c) The reaction ... to replenish stores of ATP and phosphocreatine in muscle fibers. 6. Free Response scoring guidelines for Free-response Question 6 (a).
You can download and preview AP Biology test questions and answers in text format or you can download in MS Word format. You may also be interested in traveling to the College Board and learning more about the AP Program and about AP Biology. For those who ... biology sites. Recent Essay Questions and Standards

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