CAMPBELL BIOLOGY-MASTERING BIO.ACCESS
12th Edition
ISBN: 9780136486787
Author: Urry
Publisher: SAVVAS L
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Chapter 7.3, Problem 1CC
Summary Introduction
To explain: How does a cell get rids of CO2that is produced during
Introduction: Diffusion is a process in which a substance moves from an area of its higher concentration to an area of its lower concentration without the expenditure of energy. The molecules move in a direction from a higher to a lower concentration gradient. For example, during a respiration process, oxygen molecule (O2) is taken up by cells. Oxygen is a non-polar molecule that can rapidly cross the lipid bilayer of the plasma membrane. The O2is in higher concentration outside the cell membrane than inside, so it favors the diffusion of O2 inside the cell.
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Chapter 7 Solutions
CAMPBELL BIOLOGY-MASTERING BIO.ACCESS
Ch. 7.1 - VISUAL SKILLS Carbohydrates are attached to...Ch. 7.1 - Prob. 2CCCh. 7.2 - What property allows O2 and CO2 to cross a lipid...Ch. 7.2 - VISUAL SKILLS Examine Figure 7.2. Why is a...Ch. 7.2 - MAKE CONNECTIONS Aquaporins exclude passage of...Ch. 7.3 - Prob. 1CCCh. 7.3 - WHAT IF? If a Paramecium swims from a hypotonic...Ch. 7.4 - Prob. 1CCCh. 7.4 - Prob. 2CCCh. 7.4 - MAKE CONNECTIONS Review the characteristics of...
Ch. 7.5 - As a cell grows, its plasma membrane expands. Does...Ch. 7.5 - DRAW IT Return to Figure 7.9, and circle a patch...Ch. 7.5 - Prob. 3CCCh. 7 - In what ways are membranes crucial to life?Ch. 7 - How do aquaporins affect the permeability of a...Ch. 7 - What happens to a cell placed in a hypertonic...Ch. 7 - ATP is not directly involved in the functioning of...Ch. 7 - Which type of endocytosis involves the binding of...Ch. 7 - In what way do the membranes of a eukaryotic Cell...Ch. 7 - According to the fluid mosaic model of membrane...Ch. 7 - Which of the following factors would tend to...Ch. 7 - Which of the following processes includes all the...Ch. 7 - Prob. 5TYUCh. 7 - DRAW IT An artificial "cell" consisting of an...Ch. 7 - EVOLUTION CONNECTION Paramecium and other...Ch. 7 - Prob. 8TYUCh. 7 - SCIENCE, TECHNOLOGY, AND SOCIETY Extensive...Ch. 7 - WRITE ABOUT A THEME: INTERACTIONS A human...Ch. 7 - SYNTHESIZE YOUR KNOWLEDGE In the supermarket,...
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- Which organelle of a cell has a function that might be affected by Cystic Fibrosis? Explain what this structure does to help the cell's ability to maintain homeostasis.arrow_forwardSuggest a reason why some eukaryotic cells lack cell walls.arrow_forwardElodea is an aquatic plant native to Florida. A process called cytoplasmic streaming or cyclosis occurs in Elodea cells, where there is movement of the cytoplasm. The same phenomenon is also observed in animal cells. Below is a microscope image of Elodea cells. 1. Describe the overall shape of the Elodea cells. 2. Label the cell wall of an Elodea cell. 3. Are chloroplasts abundant in the Elodea cell? How many chloroplasts do you think are visible? 4. What are two abiotic (non-living) factors that influence the growth of Elodea?arrow_forward
- There is a toxic metal that can puncture the outer membrane of the mitochondria which creates a gap on the outer membrane but leaving the inner surface membrane intact. The researchers observed that the poisoned cell died within an hour. Explain what would happen to the cell if there is a gap in the outer membrane.arrow_forwardCompare and contrast the stages of cellular respirationarrow_forwardDetermine whether the statement is true or false. State the answer directly, no need to explain. 1. Chlorophyll is the solar energy-capturing organelle derived from photosynthetic bacteria. 2. Proteins embedded on the plasma membrane may also transport some molecules to and outside the cell. 3. Nuclear envelope is a double membrane with pores that separates the nucleus from the rest of the cell. 4. Eukaryotic cells are considered the first cell type on Earth and are the cell type of bacteria and archaea. 5. Cell wall surrounds plasma membrane which is common among plants, fungi and many protists. 6. Ribosomes direct the synthesis of RNA. 7. The cytoskeleton is a network of interconnected membranes that helps move substances within the cell.arrow_forward
- Part A: Chemiosmosis is movement of water molecules through a membrane False True Part B: The acidic environment is created inside mitochondria and chloroplast during cellular respiration and photosynthesis respectively. A. True B. Falsearrow_forwardThe purpose of this assignment is to the understand processes within cells, including enzymes, diffusion, osmosis and pH, that allow cellular energy production to occur.1. Describe two examples of enzyme involvement in photosynthesis.2. Explain the role of the cytoplasm in photosynthesis.arrow_forwardChloroplasts, unlike mitochondria, have an unique third membrane termed the membrane.arrow_forward
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