Podcast
Questions and Answers
What is the primary function of the G1 phase in the cell cycle?
What is the primary function of the G1 phase in the cell cycle?
- DNA is duplicated to prepare for cell division.
- The cell performs its regular functions and grows. (correct)
- Cell organelles are degraded in preparation for division.
- The cell enters a resting phase and remains inactive.
Which statement accurately describes apoptosis?
Which statement accurately describes apoptosis?
- A process solely responsible for cellular growth.
- Cell death that occurs only due to viral infections.
- A random and uncontrolled process of cell death.
- The regulated and controlled death of a cell. (correct)
What occurs during the S phase of the cell cycle?
What occurs during the S phase of the cell cycle?
- The cell enters a resting phase and halts its activities.
- The DNA is replicated to ensure identical cell division. (correct)
- The cell synthesizes proteins necessary for division.
- The chromosomes condense to prepare for cytokinesis.
In which phase do cells primarily perform their normal functions and prepare for potential replication?
In which phase do cells primarily perform their normal functions and prepare for potential replication?
What limits the maximum size a cell can achieve during growth?
What limits the maximum size a cell can achieve during growth?
Which characteristic is not typically associated with malignant tumours?
Which characteristic is not typically associated with malignant tumours?
In the context of cancer development, what does metastasis refer to?
In the context of cancer development, what does metastasis refer to?
What is a common characteristic of abnormal cancer cells?
What is a common characteristic of abnormal cancer cells?
Which treatment option specifically involves modifying the body's immune response to fight cancer?
Which treatment option specifically involves modifying the body's immune response to fight cancer?
Which of the following methods is primarily used to determine the stage of cancer?
Which of the following methods is primarily used to determine the stage of cancer?
Which structure is produced in the nucleolus?
Which structure is produced in the nucleolus?
What is the primary function of the smooth endoplasmic reticulum?
What is the primary function of the smooth endoplasmic reticulum?
What distinguishes the rough endoplasmic reticulum from the smooth endoplasmic reticulum?
What distinguishes the rough endoplasmic reticulum from the smooth endoplasmic reticulum?
What does the Golgi apparatus primarily consist of?
What does the Golgi apparatus primarily consist of?
Which organelle is involved in energy production and has a double-membrane structure?
Which organelle is involved in energy production and has a double-membrane structure?
What is the function of the central vacuole found in plant cells?
What is the function of the central vacuole found in plant cells?
Which of the following statements about chloroplasts is true?
Which of the following statements about chloroplasts is true?
Which structure acts as a barrier that surrounds the nucleus?
Which structure acts as a barrier that surrounds the nucleus?
What is the primary function of the plasma membrane in a cell?
What is the primary function of the plasma membrane in a cell?
Which statement correctly describes the cytoplasm?
Which statement correctly describes the cytoplasm?
Which of the following statements aligns with the cell theory?
Which of the following statements aligns with the cell theory?
What is the main control center of a cell, often referred to as the brain of the cell?
What is the main control center of a cell, often referred to as the brain of the cell?
Which component is NOT part of the cell's structural elements?
Which component is NOT part of the cell's structural elements?
Which characteristic is NOT attributed to the plasma membrane?
Which characteristic is NOT attributed to the plasma membrane?
How does the cytoplasm contribute to cellular function?
How does the cytoplasm contribute to cellular function?
What surrounds the nucleus and provides an additional layer of protection?
What surrounds the nucleus and provides an additional layer of protection?
Which characteristic is unique to ionic compounds when compared to covalent compounds?
Which characteristic is unique to ionic compounds when compared to covalent compounds?
In the context of nomenclature, which statement is true for naming covalent compounds?
In the context of nomenclature, which statement is true for naming covalent compounds?
What is a defining property of acids based on the pH scale?
What is a defining property of acids based on the pH scale?
Which type of mirror can produce a virtual image that is upright and larger than the object?
Which type of mirror can produce a virtual image that is upright and larger than the object?
Which reaction type involves an exchange of ions resulting in the formation of new compounds?
Which reaction type involves an exchange of ions resulting in the formation of new compounds?
What phenomenon occurs when light passes from one medium to another at an angle?
What phenomenon occurs when light passes from one medium to another at an angle?
Which statement about the Law of Conservation of Mass is accurate in chemical reactions?
Which statement about the Law of Conservation of Mass is accurate in chemical reactions?
Which factor does NOT affect the rate of chemical reactions?
Which factor does NOT affect the rate of chemical reactions?
What is the primary cause of total internal reflection in light waves?
What is the primary cause of total internal reflection in light waves?
Which property most distinguishes thermal energy produced by LED lights from other types of light production?
Which property most distinguishes thermal energy produced by LED lights from other types of light production?
During which stage of mitosis do the spindle fibres align chromosomes along the middle of the cell?
During which stage of mitosis do the spindle fibres align chromosomes along the middle of the cell?
What occurs during telophase in the process of mitosis?
What occurs during telophase in the process of mitosis?
Which type of tissue in animals is responsible for transmitting signals?
Which type of tissue in animals is responsible for transmitting signals?
What is a primary function of xylem tissue in plants?
What is a primary function of xylem tissue in plants?
Which stem cells can differentiate into any type of cell during the embryonic stage?
Which stem cells can differentiate into any type of cell during the embryonic stage?
What characterizes meristematic tissue in plants?
What characterizes meristematic tissue in plants?
In which phase are sister chromatids pushed apart by spindle fibres?
In which phase are sister chromatids pushed apart by spindle fibres?
Which of the following provides strength and support in plant stems?
Which of the following provides strength and support in plant stems?
What happens during cytokinesis in animal cells?
What happens during cytokinesis in animal cells?
Which type of plant tissue is primarily responsible for photosynthesis?
Which type of plant tissue is primarily responsible for photosynthesis?
What mechanism leads to the formation of cancer cells?
What mechanism leads to the formation of cancer cells?
Which of the following is NOT a characteristic of adult stem cells?
Which of the following is NOT a characteristic of adult stem cells?
What type of cell makes up the outer protective covering of a leaf?
What type of cell makes up the outer protective covering of a leaf?
Flashcards
Cell Theory
Cell Theory
All living organisms are composed of one or more cells, cells are the basic structural and functional unit of all living organisms, and all new cells arise from preexisting cells.
Plasma Membrane
Plasma Membrane
The boundary of a cell, selectively permeable, meaning it controls what enters and exits the cell.
Cytoplasm
Cytoplasm
Jelly-like substance that fills the space between the plasma membrane and the nucleus.
Nucleus
Nucleus
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Organelles
Organelles
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Plasma Membrane Structure
Plasma Membrane Structure
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Cytoplasm Function
Cytoplasm Function
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Nucleus Function
Nucleus Function
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Cell Division
Cell Division
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Interphase
Interphase
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G1 Phase
G1 Phase
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S Phase
S Phase
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G2 Phase
G2 Phase
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Nuclear Envelope
Nuclear Envelope
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Ribosomes
Ribosomes
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Rough Endoplasmic Reticulum (RER)
Rough Endoplasmic Reticulum (RER)
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Smooth Endoplasmic Reticulum (SER)
Smooth Endoplasmic Reticulum (SER)
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Golgi Apparatus
Golgi Apparatus
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Mitochondria
Mitochondria
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Chloroplast
Chloroplast
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Cancerous Cells
Cancerous Cells
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Benign Tumor
Benign Tumor
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Malignant Tumor
Malignant Tumor
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Metastasis
Metastasis
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Tumor
Tumor
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Mitosis
Mitosis
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Prophase
Prophase
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Metaphase
Metaphase
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Anaphase
Anaphase
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Telophase
Telophase
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Cytokinesis
Cytokinesis
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Specialized cells
Specialized cells
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Stem cells
Stem cells
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Epithelial tissue
Epithelial tissue
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Connective tissue
Connective tissue
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Muscle tissue
Muscle tissue
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Nervous tissue
Nervous tissue
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Meristematic tissue
Meristematic tissue
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Epidermal tissue
Epidermal tissue
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Ground tissue
Ground tissue
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Covalent Bond
Covalent Bond
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Ionic Bond
Ionic Bond
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Atom
Atom
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Cation
Cation
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Anion
Anion
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Decomposition Reaction
Decomposition Reaction
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Synthesis Reaction
Synthesis Reaction
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Single Displacement Reaction
Single Displacement Reaction
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Double Displacement Reaction
Double Displacement Reaction
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Combustion Reaction
Combustion Reaction
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Study Notes
Cell Theory
- All living things are made up of one or more cells
- The cell is the simplest unit that carries out all life processes
- All cells come from other cells
Cell Organelles - Animal Cell
Plasma Cell Membrane
- Selectively permeable border of the cell
- Composed of a double layer of phospholipids
- Forms a protective barrier around the cell
- Allows different substances to move through it
Cytoplasm
- Gel-like material
- Helps different substances move through it
Nucleus
- Contains genetic information
- Surrounded by nuclear envelope
- Controls all activities in a cell
- Involved in DNA replication, transcription, and RNA processing
- Protects organelles
Nucleolus
- Darker structure within the nucleus
- Produces and assembles the cell's ribosomes
Nuclear Envelope (membrane)
- Double membrane with nuclear pores
- Protects and separates the contents of the nucleus
Ribosome
- Produced in the nucleolus
- Can be bound to the ER or freely floating in the cytoplasm
- Involved in protein synthesis
Centrioles
- Cylindrical structure of 9 triplets of tubes
- Always exist as a pair
- Help with cell division and organize microtubules
Rough Endoplasmic Reticulum
- Folded interconnected membrane
- Covered in ribosomes
- Extends from nuclear envelope
- Folds and packages proteins for transport
Smooth Endoplasmic Reticulum
- Folded interconnected membrane
- No ribosomes
- Extends from the nuclear envelope
- Produces fats and oils
- Detoxifies drugs and toxins
Golgi Apparatus
- Folded interconnected membranes and vesicles near ER
- Involved in transport
Mitochondria
- Double membrane structure
- Inner membrane folds to increase surface area
- The innermost cavity is the matrix
- Converts chemical energy in sugars to energy the cell can use
Vacuole
- Fluid-filled sacs
- Stores food, waste, and water
Vesicle
- Small cellular containers
- Transports materials
Lysosome
- Contains digestive enzymes
- Breaks down nutrients
- Breaks down excess/worn-out cell parts
Cell Wall (Plant Cells Only)
- A rigid wall
- Provides support and protection
Cytoplasm (Plant Cells)
- Gel-like material
- Contains water and dissolved minerals
- Contains organelles
Chloroplasts
- Double membrane structure
- Inner membrane folds to increase surface area
- The innermost cavity is called the stroma
- Site of photosynthesis
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