Cell Membrane Structure and Function

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Which organelle is responsible for the production of ATP in the cell?

Golgi apparatus

Endoplasmic reticulum

Chloroplast

Mitochondria (correct)

What is the function of the thylakoid space within the chloroplast?

It synthesizes carbohydrates using carbon dioxide

It produces ATP and NADPH through light reactions (correct)

It contains chlorophyll and other pigments for sunlight absorption

It forms flattened sacs called thylakoids

Which protein fibers play a role in cell shape and division?

Intermediate filaments

Microtubules

Centrioles

Actin filaments (correct)

What is the major microtubule-organizing center for the cell?

Centrosome Signup and view all the answers

What is the function of the chloroplast in a plant cell?

Photosynthesis Signup and view all the answers

What is the primary function of the mitochondria?

Cellular respiration Signup and view all the answers

Which type of fibers maintain the shape stability of the cell?

Intermediate filaments Signup and view all the answers

Where do the light reactions, producing ATP and NADPH, occur within the chloroplast?

Thylakoids Signup and view all the answers

Which organelle is described as having a double membrane, inner membrane folds called cristae, and a semifluid matrix?

Mitochondria Signup and view all the answers

What is the function of microtubules in a cell?

Maintaining cell shape and assisting in cell movement Signup and view all the answers

Where do the Calvin cycle reactions occur within a chloroplast?

Stroma Signup and view all the answers

What is the main role of actin filaments in a cell?

Maintaining cell shape and facilitating cellular movement Signup and view all the answers

Which organelle captures solar energy and converts CO2 and H2O to glucose?

Chloroplasts Signup and view all the answers

What is the main function of ATP in cells?

Supplies energy for cellular activities Signup and view all the answers

What is the semifluid solution between the nucleus and cell membrane called?

Cytoplasm Signup and view all the answers

Which organelle is responsible for oxidizing glucose to carbon dioxide and reducing oxygen to water?

Mitochondria Signup and view all the answers

What is the main component of cytoplasm?

Water and inorganic molecules Signup and view all the answers

Which cellular structure is responsible for capturing solar energy?

Chloroplasts Signup and view all the answers

What is the primary function of cytoplasm?

Site for cellular reactions Signup and view all the answers

Which cellular structure is responsible for ATP production?

Mitochondria Signup and view all the answers

What are the energy-related organelles in a cell?

Chloroplasts and mitochondria Signup and view all the answers

Which cellular component contains actin filaments, intermediate filaments, and microtubules?

Cytoskeleton Signup and view all the answers

What is the main function of chloroplasts?

Photosynthesis Signup and view all the answers

Which organelle contains a semifluid solution with water, inorganic molecules, and organic molecules?

Cytoplasm Signup and view all the answers

Which type of molecule is the polar (hydrophilic) head of the cell membrane?

Carbohydrate Signup and view all the answers

What is the function of amphipathic molecules in the cell membrane?

Provides pathways for water and water-soluble substances to cross Signup and view all the answers

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

Control chemical reactions inside the cell Signup and view all the answers

Which type of transport does not require energy and involves carrier proteins?

Facilitated diffusion Signup and view all the answers

What is the process of diffusion of water across a selectively permeable membrane known as?

Osmosis Signup and view all the answers

In which type of transport does the molecules follow their concentration gradient from an area of high concentration to an area of low concentration?

Diffusion Signup and view all the answers

Which type of transport occurs against the concentration gradient and requires energy in the form of ATP?

Active transport Signup and view all the answers

What is the function of the sodium-potassium pump in active transport?

Transports ions and polar molecules against their concentration gradients Signup and view all the answers

What is the function of ATP in cells?

Supplying energy for protein synthesis Signup and view all the answers

Where do the Calvin cycle reactions occur within a chloroplast?

Stroma Signup and view all the answers

What is the function of microtubules in a cell?

Maintaining cell shape stability Signup and view all the answers

What is the main component of cytoplasm?

Water Signup and view all the answers

Which type of molecule is the polar (hydrophilic) head of the cell membrane?

Phospholipid Signup and view all the answers

What is the function of the thylakoid space within the chloroplast?

Producing ATP Signup and view all the answers

Which cellular component contains actin filaments, intermediate filaments, and microtubules?

Cytoskeleton Signup and view all the answers

What is the primary function of cytoplasm?

Protein synthesis Signup and view all the answers

What is the function of the chloroplast in a plant cell?

Capturing solar energy Signup and view all the answers

What is the main function of chloroplasts?

Capturing solar energy and converting CO2 and H2O to glucose. Signup and view all the answers

What is the main role of actin filaments in a cell?

Maintaining cell shape stability. Signup and view all the answers

Where do the light reactions, producing ATP and NADPH, occur within the chloroplast?

Thylakoid space. Signup and view all the answers

What is the primary function of the stroma within a chloroplast?

Synthesizing carbohydrates using carbon dioxide Signup and view all the answers

Which molecule is mainly responsible for providing stability to the cell membrane?

Cholesterol Signup and view all the answers

What is the main function of the centrioles in a cell?

Assisting in the movement of cell parts Signup and view all the answers

What is the primary function of myosin in a cell?

Pulling actin filaments along using ATP Signup and view all the answers

Where do the light reactions, producing ATP and NADPH, occur within a chloroplast?

Thylakoid space Signup and view all the answers

Which organelle is responsible for maintaining the shape stability of the cell?

Cytoskeleton Signup and view all the answers

What is the function of microtubules in a cell?

Maintaining the shape of the cell and acting as tracks for organelle movement Signup and view all the answers

What is the primary function of actin filaments in a cell?

Facilitating cellular movement and maintaining shape stability Signup and view all the answers

What is the main function of mitochondria in a cell?

Cellular respiration and energy production Signup and view all the answers

What is the major microtubule-organizing center for the cell?

Centrosome Signup and view all the answers

What is the role of intermediate filaments in a cell?

Supporting the nuclear envelope and plasma membrane Signup and view all the answers

What is the primary function of chloroplasts in plant cells?

Synthesizing carbohydrates using carbon dioxide through photosynthesis Signup and view all the answers

What type of transport involves the movement of large molecules such as proteins, polysaccharides, or nucleic acids across the cell membrane and requires energy?

Exocytosis Signup and view all the answers

Which type of substances are impermeable to the plasma membrane and require an expenditure of energy to drive their transport?

Glucose Signup and view all the answers

What is the function of carrier proteins in facilitated transport across the cell membrane?

They transport ions and polar molecules down the concentration gradient Signup and view all the answers

What is the main function of amphipathic molecules in the cell membrane?

To provide pathways for small non-polar molecules Signup and view all the answers

What is the process of diffusion of water across a selectively permeable membrane known as?

Osmosis Signup and view all the answers

Which cellular process involves the movement of macromolecules or even particles like bacteria across the cell membrane?

Endocytosis Signup and view all the answers

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

They regulate chemical reactions inside the cell Signup and view all the answers

Which type of passive transport involves small molecules following their concentration gradient from an area of high concentration to an area of low concentration?

Diffusion Signup and view all the answers

In which type of transport do carrier proteins combine with specific molecules before changing shape and transporting the molecule across the membrane?

Facilitated diffusion Signup and view all the answers

What is the main function of the sodium-potassium pump in active transport?

To transport ions and polar molecules against the concentration gradient using ATP Signup and view all the answers

What is the function of aquaporin in the cell membrane?

To allow diffusion of water through a channel protein Signup and view all the answers

Which type of cellular transport requires vesicle formation for moving large molecules or particles like bacteria across the cell membrane?

Endocytosis Signup and view all the answers

Cell Membrane Structure and Function

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Questions and Answers

Which organelle is responsible for the production of ATP in the cell?

What is the function of the thylakoid space within the chloroplast?

Which protein fibers play a role in cell shape and division?

What is the major microtubule-organizing center for the cell?

What is the function of the chloroplast in a plant cell?

What is the primary function of the mitochondria?

Which type of fibers maintain the shape stability of the cell?

Where do the light reactions, producing ATP and NADPH, occur within the chloroplast?

Which organelle is described as having a double membrane, inner membrane folds called cristae, and a semifluid matrix?

What is the function of microtubules in a cell?

Where do the Calvin cycle reactions occur within a chloroplast?

What is the main role of actin filaments in a cell?

Which organelle captures solar energy and converts CO2 and H2O to glucose?

What is the main function of ATP in cells?

What is the semifluid solution between the nucleus and cell membrane called?

Which organelle is responsible for oxidizing glucose to carbon dioxide and reducing oxygen to water?

What is the main component of cytoplasm?

Which cellular structure is responsible for capturing solar energy?

What is the primary function of cytoplasm?

Which cellular structure is responsible for ATP production?

What are the energy-related organelles in a cell?

Which cellular component contains actin filaments, intermediate filaments, and microtubules?

What is the main function of chloroplasts?

Which organelle contains a semifluid solution with water, inorganic molecules, and organic molecules?

Which type of molecule is the polar (hydrophilic) head of the cell membrane?

What is the function of amphipathic molecules in the cell membrane?

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

Which type of transport does not require energy and involves carrier proteins?

What is the process of diffusion of water across a selectively permeable membrane known as?

In which type of transport does the molecules follow their concentration gradient from an area of high concentration to an area of low concentration?

Which type of transport occurs against the concentration gradient and requires energy in the form of ATP?

What is the function of the sodium-potassium pump in active transport?

What is the function of ATP in cells?

Where do the Calvin cycle reactions occur within a chloroplast?

What is the function of microtubules in a cell?

What is the main component of cytoplasm?

Which type of molecule is the polar (hydrophilic) head of the cell membrane?

What is the function of the thylakoid space within the chloroplast?

Which cellular component contains actin filaments, intermediate filaments, and microtubules?

What is the primary function of cytoplasm?

What is the function of the chloroplast in a plant cell?

What is the main function of chloroplasts?

What is the main role of actin filaments in a cell?

Where do the light reactions, producing ATP and NADPH, occur within the chloroplast?

What is the primary function of the stroma within a chloroplast?

Which molecule is mainly responsible for providing stability to the cell membrane?

What is the main function of the centrioles in a cell?

What is the primary function of myosin in a cell?

Where do the light reactions, producing ATP and NADPH, occur within a chloroplast?

Which organelle is responsible for maintaining the shape stability of the cell?

What is the function of microtubules in a cell?

What is the primary function of actin filaments in a cell?

What is the main function of mitochondria in a cell?

What is the major microtubule-organizing center for the cell?

What is the role of intermediate filaments in a cell?

What is the primary function of chloroplasts in plant cells?

What type of transport involves the movement of large molecules such as proteins, polysaccharides, or nucleic acids across the cell membrane and requires energy?

Which type of substances are impermeable to the plasma membrane and require an expenditure of energy to drive their transport?

What is the function of carrier proteins in facilitated transport across the cell membrane?

What is the main function of amphipathic molecules in the cell membrane?

What is the process of diffusion of water across a selectively permeable membrane known as?

Which cellular process involves the movement of macromolecules or even particles like bacteria across the cell membrane?

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

Which type of passive transport involves small molecules following their concentration gradient from an area of high concentration to an area of low concentration?

In which type of transport do carrier proteins combine with specific molecules before changing shape and transporting the molecule across the membrane?

What is the main function of the sodium-potassium pump in active transport?

What is the function of aquaporin in the cell membrane?

Which type of cellular transport requires vesicle formation for moving large molecules or particles like bacteria across the cell membrane?

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