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Questions and Answers
What is the primary function of the cell wall in a plant cell?
What is the primary function of the cell wall in a plant cell?
- Produces proteins
- Protects the cell and maintains its shape (correct)
- Provides energy for the cell
- Stores genetic information
Which cell component is responsible for converting energy into a usable form for the cell?
Which cell component is responsible for converting energy into a usable form for the cell?
- Lysosome
- Cell wall
- Mitochondria (correct)
- Chloroplast
Which cell organelle is involved in breaking down unwanted bacteria and damaged organelles?
Which cell organelle is involved in breaking down unwanted bacteria and damaged organelles?
- Cell wall
- Chloroplast
- Lysosome (correct)
- Mitochondria
What is the primary function of chloroplasts in plant cells?
What is the primary function of chloroplasts in plant cells?
Which of the following statements is TRUE about both plant cells and animal cells?
Which of the following statements is TRUE about both plant cells and animal cells?
Which of the following statements is TRUE about the nucleus?
Which of the following statements is TRUE about the nucleus?
What does the prefix 'cyto' refer to?
What does the prefix 'cyto' refer to?
What is the primary difference between plant and animal cells?
What is the primary difference between plant and animal cells?
What are the two main types of organisms based on the number of cells they contain?
What are the two main types of organisms based on the number of cells they contain?
Which of these is an example of a multicellular organism?
Which of these is an example of a multicellular organism?
What is the basic unit of structure for a brick house?
What is the basic unit of structure for a brick house?
What is the process by which cells break down simple sugars like glucose to produce energy?
What is the process by which cells break down simple sugars like glucose to produce energy?
What specialized function do cells in multicellular organisms perform?
What specialized function do cells in multicellular organisms perform?
Which of the following is NOT a characteristic of multicellular organisms?
Which of the following is NOT a characteristic of multicellular organisms?
What is the main reason red blood cells lose their nucleus at maturity?
What is the main reason red blood cells lose their nucleus at maturity?
Which type of tissue forms the lining of the stomach and the small intestine, aiding in absorption?
Which type of tissue forms the lining of the stomach and the small intestine, aiding in absorption?
Which of the following is NOT an example of connective tissue?
Which of the following is NOT an example of connective tissue?
What is the primary function of nervous tissue?
What is the primary function of nervous tissue?
Which type of muscle tissue is responsible for the movement of food through the intestines?
Which type of muscle tissue is responsible for the movement of food through the intestines?
How do specialized cells differ from general cells?
How do specialized cells differ from general cells?
What is the relationship between cells and tissues?
What is the relationship between cells and tissues?
Which of these is a type of plant tissue responsible for transporting water and nutrients?
Which of these is a type of plant tissue responsible for transporting water and nutrients?
What is the term for a characteristic that allows an organism to live in its environment?
What is the term for a characteristic that allows an organism to live in its environment?
Which of the following is NOT a necessary function for all living things?
Which of the following is NOT a necessary function for all living things?
What is the term for a reaction to a stimulus?
What is the term for a reaction to a stimulus?
What is the function of a cactus' spines?
What is the function of a cactus' spines?
What is the function of spiracles in insects?
What is the function of spiracles in insects?
What is the function of a wood frog's ability to freeze its body during winter?
What is the function of a wood frog's ability to freeze its body during winter?
What is the function of a snowshoe hare's white fur?
What is the function of a snowshoe hare's white fur?
What is the relationship between structures and functions?
What is the relationship between structures and functions?
What happens during diffusion?
What happens during diffusion?
What is the role of the cell membrane in diffusion?
What is the role of the cell membrane in diffusion?
Which of the following factors can affect the rate of diffusion?
Which of the following factors can affect the rate of diffusion?
How does the difference in concentration affect the rate of diffusion?
How does the difference in concentration affect the rate of diffusion?
What is the term used to describe the cell membrane's ability to allow only certain substances to pass through?
What is the term used to describe the cell membrane's ability to allow only certain substances to pass through?
Why is diffusion important for cells?
Why is diffusion important for cells?
Which of the following is NOT a factor that affects the rate of diffusion?
Which of the following is NOT a factor that affects the rate of diffusion?
How does temperature affect the rate of diffusion?
How does temperature affect the rate of diffusion?
Flashcards
Stimulus
Stimulus
Anything that causes a response in an organism.
Response
Response
A reaction to a stimulus, such as moving your hand away.
Reproduction
Reproduction
The process through which living things produce new individuals.
Adaptation
Adaptation
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Structures
Structures
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Functions
Functions
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Movement
Movement
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Breathing Structures
Breathing Structures
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Nucleus
Nucleus
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Cytoplasm
Cytoplasm
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Cell Membrane
Cell Membrane
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Vacuole
Vacuole
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Chloroplast
Chloroplast
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Mitochondria
Mitochondria
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Lysosome
Lysosome
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Cell Wall
Cell Wall
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Vacuoles in Cells
Vacuoles in Cells
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Diffusion
Diffusion
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Selectively Permeable
Selectively Permeable
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Osmosis
Osmosis
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Concentration Gradient
Concentration Gradient
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Factors Affecting Diffusion
Factors Affecting Diffusion
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Organelles
Organelles
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Plant Cell
Plant Cell
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Animal Cell
Animal Cell
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Multicellular Organisms
Multicellular Organisms
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Cellular Respiration
Cellular Respiration
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Single-celled Organisms
Single-celled Organisms
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Specialized Cells
Specialized Cells
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Red Blood Cells
Red Blood Cells
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Tissues
Tissues
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Connective Tissue
Connective Tissue
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Epithelial Tissue
Epithelial Tissue
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Nervous Tissue
Nervous Tissue
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Muscle Tissue
Muscle Tissue
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Plant Tissues
Plant Tissues
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Study Notes
Unit B: Cells & Systems - Study Notes
- Unit focuses on cells and systems in Science 8.
Chapter 1: Living Things and Their Structures
- Living things share six characteristics:
- Made of cells
- Need energy
- Grow and develop
- Respond to the environment
- Reproduce
- Have adaptations for their environment.
- Non-living things may have some of these characteristics, but living things must possess all six.
- Examples: A cloud might grow, but it doesn't reproduce.
1.1 Characteristics of Living Things
- Learning Goal: Describe examples of characteristics of living things.
- 8.SCI.B.1.1 Investigates and describes example scientific studies of the characteristics of living things.
- Cells are the basic unit of life.
- Cells perform all life processes.
- All organisms are made of at least one cell.
- Every cell comes from another cell.
- Cells are microscopic in size.
1.2 Structure & Functions
-
Learning Goal: Explain how different organisms have similar functions that are met in a variety of ways.
- 8.SCI.B.1.3 Illustrates and explains how different organisms have similar functions that are met in a variety of ways.
-
Organisms use different structures to perform similar tasks or functions.
- Examples: Legs for movement in a horse, tail/fins for movement in a whale.
-
Different ways that animals breathe
- Example includes spiracles in insects.
-
Organisms have adaptations that allow them to survive in their environments.
- Charles Darwin - Theory of Evolution and Natural Selection.
-
Example of adaptation: Finches with different beak shapes adapting to different food sources.
1.3 Organ & Organ Systems
-
Learning Goal: Show how the body is organized into systems and analyze their general function.
- 8.SCI.B.1.2 Applies the concept of systems to describe familiar organisms and analyzes their general structure and function.
-
Organs work together in organ systems.
- Organs are made of tissues, which are groups of similar cells.
-
Key Body Systems include:
- Digestive System
- Respiratory System
- Circulatory System
- Excretory System
- Nervous System
- Skeletal System
- Integumentary System
2.1 Microscopes Extend Sight
- Microscopes magnify objects, extending human sight to observe the small, like cells.
- Microscopes come in different shapes and sizes, with some uses in medical fields.
2.2 The Cell Is the Basic Unit of Life
-
Learning Goal: Describe the role of cells as the basic unit of life.
- 8.SCI.B.2.1 Describes the role of cells as a basic unit of life.
-
Cells are the building blocks of life
-
Cells with similar structures and function are organized into tissues.
-
Tissues working together form organs.
-
Organs working together form organ systems.
2.3 Organisms Can be Single-celled or Multi-celled
-
Learning Goal: Compare and contrast single and multicellular organisms.
-
Multicellular Organisms have many cells, and specialize to take on specific functions.
- Examples include humans and bears.
-
Single-celled Organisms do all the jobs in a single cell
- Examples include amoeba and paramecium
2.4 How Substances Move Into & Out of Cells
-
Learning Goal: Describe the movement of gases and liquids into and out of cells during diffusion and osmosis..
-
Can describe diffusion and osmosis in terms of concentration differences
-
8.SCI.B.2.4 Describes, in general, how the processes of diffusion and osmosis move fluids into and out of cells.
-
Diffusion: Movement of particles from areas of high concentration to low concentration.
- Factors affecting diffusion rate include distance, temperature, and the characteristics of the substance.
-
Osmosis: Diffusion of water across a selectively permeable membrane
- Hypotonic solutions have lower solute concentration compared to the cell.
- Hypertonic solutions have higher solute concentration compared to the cell.
- Isotonic solutions have the same solute concentration as the cell.
2.5 Cells in Multicellular Organisms Combine to Form Tissues & Organs
-
Learning Goal: Identify the roles of cells, tissues, and organs in plant and animal structures.
- 8.SCI.B.2.5 Identifies contributing roles of cells, tissues and organs in plant and animal structures.
-
Specialized cells in multicellular organisms carry out specific functions to support life.
- Examples - red blood cells, muscle cells, sex cells.
-
Tissues that support life are:
- Animal Tissues - connective, epithelial, nervous, and muscle tissue
- Plant Tissues - photosynthetic, protective, and transport tissues.
-
Tissues are organized into organs, and organs into organ systems which perform functions and keep organisms alive.
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Description
Test your knowledge of cell biology with this quiz covering key concepts such as plant and animal cell structures, organelles, and their functions. Explore the differences between unicellular and multicellular organisms, and understand the roles of various cell components in maintaining life. Perfect for students studying cell biology or related subjects.
