Unit 8 Progress Check Frq Ap Bio (2024)

FAQs

How many points is the AP Bio Frq worth? ›

You have 90 minutes to complete Section II of the AP Biology exam. The first 10 minutes are intended to be used as a reading period, leaving approximately 20 minutes for each of the long FRQs (questions 1 and 2) and 10 minutes for each of the short-answer FRQs (questions 3 – 6).

Answer: The monitoring the growth rate of E. Coli bacteria is a useful indicator of the effect of glycotic enzyme mutation on the bacteria as the flow of intracellular metabolic components depends on the availability of carbon. Hence the change in carbon source can change the glyclyotic enzyme mutation up or down.

The AP Biology free-response section can be tough, but if you prepare well for it, you can go into exam day confident and knowing what to expect. The section consists of two long questions and four short questions, lasts 90 minutes, and is worth half of your total score.

However, as a rough estimate, scoring around 70%-75% of the total points available on the exam should put you in a good position to earn a 5. The AP Biology exam is divided into two main sections: Multiple-Choice Questions (MCQs) and Free-Response Questions (FRQs).

In AP Biology, the level of difficulty for each unit can vary from student to student, depending on their background and strengths. However, many students often find the cellular processes and molecular biology units to be quite challenging.

Getting a 5 on the AP Biology exam requires lots of hard work. But if you start feeling burnt out by memorization, you can add some creative study methods to your rotation to keep practicing the skills you'll need for the exam.

You must have several No. 2 pencils with erasers and black or blue ink pens for any free-response sections.

Remember that you may answer the questions in any order

It's fine to answer the question you feel most confident about first. Just be sure to indicate clearly in your answer booklet which question you are answering.

Our AP® Biology score calculator clearly shows that you would need to answer 50% of the multiple choice questions right and get at least half of the points for each free response question to achieve a score of 3 or better on this exam.

What pH does E. coli grow best at? ›

In order to colonize the human gastrointestinal tract, E. coli must be able to grow between pH 4.5 and pH 9 [19]. Over this wide pH range, E. coli preserves enzyme activity, as well as protein and nucleic acid stability, by maintaining the cytoplasmic pH in the range of 7.2 to 7.8 [20], [21].

Some variants of Escherichia coli produce a poison causing intestinal infections, urinary tract infection, kidney failure and blood poisoning. Your oral cavity is at risk of infection from this bacteria commonly transmitted from hand to mouth.

Antibiotics for E. coli infections

Some antibiotics providers use to treat E. coli infections include: Trimethoprim/sulfamethoxazole (TMP/SMX). Ciprofloxacin. Rifaximin.

Remember that you may answer the questions in any order

It's fine to answer the question you feel most confident about first. Just be sure to indicate clearly in your answer booklet which question you are answering.