Podcast
Questions and Answers
What happens to the SA:V ratio as a cube grows larger?
What happens to the SA:V ratio as a cube grows larger?
Which type of organelles are primarily made of phospholipids?
Which type of organelles are primarily made of phospholipids?
Why do prokaryotes lack membrane-bound organelles?
Why do prokaryotes lack membrane-bound organelles?
Which of the following are common characteristics of prokaryotes, chloroplasts, and mitochondria?
Which of the following are common characteristics of prokaryotes, chloroplasts, and mitochondria?
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How does the structure of the human small intestine enhance its function?
How does the structure of the human small intestine enhance its function?
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What is the maximum number of quizzes a student can make up if they were absent for three quizzes?
What is the maximum number of quizzes a student can make up if they were absent for three quizzes?
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What must a student do if they were never absent or only absent for one quiz?
What must a student do if they were never absent or only absent for one quiz?
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Which is a requirement for the new quiz a student must create?
Which is a requirement for the new quiz a student must create?
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What happens if the student correctly answers all questions related to the original quiz topic?
What happens if the student correctly answers all questions related to the original quiz topic?
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How should the answers to the quiz questions be formatted?
How should the answers to the quiz questions be formatted?
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Study Notes
SA:V Ratio Calculation
- A cube with a side length of 3 cm has a surface area of 54 cm² and a volume of 27 cm³.
- The SA:V ratio for this cube is 2:1.
- Larger cubes have a smaller SA:V ratio because the volume increases faster than the surface area.
Small Intestine Structure
- The small intestine is designed for efficient food absorption by increasing surface area, providing time for digestion, and containing structures for nutrient absorption.
Organelles: Membrane-bound vs. Non-membrane-bound
- Membrane-bound organelles are primarily composed of phospholipids, examples include the Endoplasmic Reticulum and Mitochondria.
- Non-membrane-bound organelles are primarily composed of proteins, examples include Ribosomes and the Cytoskeleton.
Prokaryotic Organelles
- Prokaryotes lack membrane-bound organelles because they evolved before the presence of oxygen in the atmosphere.
- The evolution of oxygen led to the development of cellular respiration, which is found in eukaryotes with membrane-bound organelles.
Characteristics of Prokaryotes, Chloroplasts, and Mitochondria
- Prokaryotes, chloroplasts, and mitochondria share these characteristics:
- They contain their own DNA and RNA.
- They have a double cellular structure.
- Mitochondria and chloroplasts are considered "first cells" due to their shared characteristics with prokaryotes.
Optional Quiz Make-up
- Students can replace one missing or low quiz grade from quarter 1.
- Students can choose any allowed quiz if they were absent for one or no quizzes.
- Students must make up a quiz they missed if they were absent for more than one.
- The make-up quiz must have five new questions covering the same or similar topics as the original quiz.
- Questions should not be copied from the original quiz.
- No more than one question should require only identification.
- The quiz does not need to be formatted as a quiz.
- Questions should be answered in complete sentences, unless the question requires labeling or drawing.
- The quiz must be handwritten and labeled correctly.
- A perfect score will be given if all five questions and answers are related to the original quiz topic and answered correctly.
Quiz Requirements
- Questions should use task verbs like analyze, apply, compare, contrast, describe, explain, evaluate, predict, and justify.
- Students can refer to a sample quiz for an idea of what the make-up quiz should look like.
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Description
This quiz covers essential biology concepts, including the surface area to volume (SA:V) ratio calculation for cubes and the structural adaptations of the small intestine. Additionally, it explores the differences between membrane-bound and non-membrane-bound organelles, along with the characteristics of prokaryotic cells. Test your understanding of these fundamental biological principles!
