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Questions and Answers
What is the primary function of xylem tissue in plants?
What is the primary function of xylem tissue in plants?
What does diffusion refer to in cellular processes?
What does diffusion refer to in cellular processes?
Osmosis occurs when water moves from high solute concentration to low solute concentration.
Osmosis occurs when water moves from high solute concentration to low solute concentration.
False
Phloem cells are responsible for conducting water and minerals to different parts of the plant.
Phloem cells are responsible for conducting water and minerals to different parts of the plant.
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What are the two main types of conduction tissue in vascular plants?
What are the two main types of conduction tissue in vascular plants?
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What is the process called when plants release water vapor into the atmosphere?
What is the process called when plants release water vapor into the atmosphere?
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A _____ membrane allows certain molecules to pass while blocking others.
A _____ membrane allows certain molecules to pass while blocking others.
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The stomata are small pores located on the ______ of leaves.
The stomata are small pores located on the ______ of leaves.
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Match the following cell types with their special functions:
Match the following cell types with their special functions:
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Match the following terms with their definitions:
Match the following terms with their definitions:
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What factors influence the rate of passage through a semi-permeable membrane?
What factors influence the rate of passage through a semi-permeable membrane?
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Which of the following is NOT an advantage of being multicellular?
Which of the following is NOT an advantage of being multicellular?
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All plant cells require minerals as nutrients to function.
All plant cells require minerals as nutrients to function.
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In a semi-permeable membrane, all substances can cross freely.
In a semi-permeable membrane, all substances can cross freely.
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What molecules can cross the cell membrane directly through phospholipids?
What molecules can cross the cell membrane directly through phospholipids?
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Name one reason why multicellular organisms can function more efficiently compared to unicellular organisms.
Name one reason why multicellular organisms can function more efficiently compared to unicellular organisms.
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What is the primary function of capillaries in the circulatory system?
What is the primary function of capillaries in the circulatory system?
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The spinal cord is responsible for storing urine before it is expelled from the body.
The spinal cord is responsible for storing urine before it is expelled from the body.
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What is the role of the kidney in the excretory system?
What is the role of the kidney in the excretory system?
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The _____ system circulates blood and transports food particles and dissolved gases.
The _____ system circulates blood and transports food particles and dissolved gases.
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Match the following body systems with their primary functions:
Match the following body systems with their primary functions:
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What is the primary function of the mouth in digestion?
What is the primary function of the mouth in digestion?
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The liver makes bile which helps in the digestion of carbohydrates.
The liver makes bile which helps in the digestion of carbohydrates.
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What are the two main tubes that lead to the lungs called?
What are the two main tubes that lead to the lungs called?
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The __________ carries blood away from the heart.
The __________ carries blood away from the heart.
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Match the organ with its function:
Match the organ with its function:
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What process moves food from the esophagus to the stomach?
What process moves food from the esophagus to the stomach?
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The large intestine is responsible for the absorption of water and the excretion of solid waste material.
The large intestine is responsible for the absorption of water and the excretion of solid waste material.
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What is the function of the diaphragm in the respiratory system?
What is the function of the diaphragm in the respiratory system?
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What is the primary function of red blood cells?
What is the primary function of red blood cells?
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High blood pressure is a common disorder of the digestive system.
High blood pressure is a common disorder of the digestive system.
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Name one common disorder of the respiratory system.
Name one common disorder of the respiratory system.
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Eating a balanced diet is important for maintaining a healthy _____ system.
Eating a balanced diet is important for maintaining a healthy _____ system.
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Match each organ system with its common disorders:
Match each organ system with its common disorders:
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What is the primary function of the contractile vacuole in single-celled organisms?
What is the primary function of the contractile vacuole in single-celled organisms?
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Epithelial tissue primarily supports different parts of the body.
Epithelial tissue primarily supports different parts of the body.
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What are the two main systems plants have that contribute to their functioning?
What are the two main systems plants have that contribute to their functioning?
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The organ responsible for gas exchange in the body is the ______.
The organ responsible for gas exchange in the body is the ______.
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Which type of tissue is primarily involved in movement?
Which type of tissue is primarily involved in movement?
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Plants have more systems than animals.
Plants have more systems than animals.
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What is the main purpose of the circulatory system?
What is the main purpose of the circulatory system?
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The __________ tissue connects and supports different parts of the body.
The __________ tissue connects and supports different parts of the body.
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Which of the following organs is part of the excretory system?
Which of the following organs is part of the excretory system?
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Study Notes
Movement in Cells
- Diffusion is the process of molecules mixing due to their kinetic energy. Molecules move from high concentration to low concentration.
- A semi-permeable membrane allows some molecules to pass through but not others. The rate of passage depends on pressure, concentration, temperature, and the membrane's permeability to each molecule.
- Osmosis is the diffusion of water across a semi-permeable membrane. Water moves from high to low concentration—always towards the area with more solutes.
The Cell Membrane
- The cell membrane acts like a border, controlling what enters and leaves the cell.
- It is semi-permeable, allowing some substances across while blocking others.
- Some substances, like water, oxygen, and carbon dioxide, can pass directly through the phospholipid bilayer. Other substances require protein channels.
- Some substances, such as charged particles (ions), cannot cross the membrane without help from protein channels.
Vascular Tissue
- Vascular plants have xylem and phloem, which transport water and nutrients.
- Xylem transports water and dissolved minerals from the roots to the leaves.
- Phloem transports food and other organic substances throughout the plant.
Cell Specialization and Organization
- Multicellular organisms have specialized cells.
- Specialized cells have specific shapes and functions.
- Examples include muscle cells for movement, nerve cells for communication, and red blood cells for oxygen transport.
Examples of Systems and Tissues
- Cells form tissues, tissues form organs, and organs form systems.
- Systems work together for the function of an organism.
- An amoeba uses structures like a contractile vacuole and food vacuoles, the body has excretory, digestive, respiratory, circulatory, and nervous systems
Plants Have Fewer Systems
- Plants have fewer well-defined systems than animals.
- Their systems include a root system that anchors and absorbs, and a shoot system (including stems, leaves, and flowers), which carries out photosynthesis.
Human Body Systems
- Digestive- Breaks down food, absorbs particles, and eliminates waste.
- Respiratory- Exchanges oxygen and carbon dioxide
- Circulatory- Circulates blood. Transported food particles, dissolved gases and other materials.
- Nervous- Controls and coordinates body activities; senses internal/external changes.
- Excratory- Removes wastes. Kidneys clean the blood.
Body Systems and Health
- Blood acts as a transportation system for substances and wastes throughout the body.
- Blood is made of plasma, red blood cells, white blood cells and platelets.
- A healthy lifestyle can promote a healthy circulatory system.
- Disorders of the circulatory system can lead to serious health problems.
- A healthy diet and preventative measures can promote a healthy digestive and respiratory system.
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Description
This quiz covers essential concepts related to movement in cells, including diffusion, osmosis, and the role of the cell membrane. Test your understanding of how substances move across semi-permeable membranes and the factors that influence this process. Ideal for students studying cell biology.
