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Penn Foster - Biology Lesson 2, The Cell and its Processes, ALL Exercises, Questions, Answers, Explanations, Definitions, & Key Points 100% Pass R226,90
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Penn Foster - Biology Lesson 2, The Cell and its Processes, ALL Exercises, Questions, Answers, Explanations, Definitions, & Key Points 100% Pass
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Penn Foster - Biology Lesson 2, The Cell and its Processes, ALL Exercises, Questions, Answers, Explanations, Definitions, & Key Points 100% Pass What organelle is involved in detoxifying harmful substances in the cell? Peroxisomes Which cell process converts glucose into ATP in the prese...

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  • September 6, 2024
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  • 2024/2025
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Penn Foster - Biology Lesson 2, The Cell
and its Processes, ALL Exercises,
Questions, Answers, Explanations,
Definitions, & Key Points 100% Pass
What organelle is involved in detoxifying harmful substances in the cell?


✔✔ Peroxisomes




Which cell process converts glucose into ATP in the presence of oxygen?


✔✔ Cellular respiration




What part of the cell is responsible for synthesizing lipids?


✔✔ Smooth endoplasmic reticulum




Which molecule forms the primary structure of the cell membrane?


✔✔ Phospholipids




What structure connects adjacent plant cells and allows communication between them?


✔✔ Plasmodesmata


1

,Which organelle is responsible for modifying, sorting, and packaging proteins for secretion?


✔✔ Golgi apparatus




What is the difference between exocytosis and endocytosis?


✔✔ Exocytosis releases materials from the cell, while endocytosis brings materials into the cell.




What is the function of transport proteins in the cell membrane?


✔✔ They help move substances across the membrane that cannot pass through the lipid bilayer.




Which organelles are involved in the breakdown of fatty acids and detoxification of hydrogen

peroxide?


✔✔ Peroxisomes




What is the purpose of microvilli on the surface of some cells?


✔✔ They increase the cell's surface area for absorption.




How do gap junctions benefit animal cells?


2

,✔✔ They allow for communication and the transfer of ions and small molecules between cells.




What role does the extracellular matrix play in animal cells?


✔✔ It provides structural and biochemical support to surrounding cells.




What is the function of centrosomes in animal cells?


✔✔ They organize microtubules and provide structure for the cell during cell division.




What is the difference between facilitated diffusion and simple diffusion?


✔✔ Facilitated diffusion requires the help of transport proteins, while simple diffusion does not.




What process allows for the direct exchange of ions and molecules between neighboring cells in

animal tissues?


✔✔ Gap junctions




What is the role of lysosomes in the cell?


✔✔ They break down waste materials and cellular debris.




3

, Which structure in the cell helps in cell division by organizing microtubules?


✔✔ Centrioles




What process involves the engulfing of large particles by the cell membrane?


✔✔ Phagocytosis




What is the purpose of the endoplasmic reticulum in a cell?


✔✔ It aids in the synthesis and transport of proteins and lipids.




How do chloroplasts contribute to the function of plant cells?


✔✔ They carry out photosynthesis by converting light energy into chemical energy.




What cellular structure is responsible for maintaining the cell’s shape and internal organization?


✔✔ Cytoskeleton




Which organelle stores water, nutrients, and waste products in plant cells?


✔✔ Central vacuole




4

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