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Questions and Answers
What is the primary function of capillaries?
What is the primary function of capillaries?
- To transport blood around the body
- To allow nutrient exchange (correct)
- To store urine
- To control body activities
The spinal cord is responsible for passing information from the brain to the body and vice versa.
The spinal cord is responsible for passing information from the brain to the body and vice versa.
True (A)
What is the role of kidneys in the excretory system?
What is the role of kidneys in the excretory system?
To clean the blood of waste products.
The _____ functions to regulate blood composition and excrete waste fluids.
The _____ functions to regulate blood composition and excrete waste fluids.
Match the following body systems with their primary functions:
Match the following body systems with their primary functions:
What is diffusion primarily driven by?
What is diffusion primarily driven by?
A semi-permeable membrane allows all types of molecules to pass through without restriction.
A semi-permeable membrane allows all types of molecules to pass through without restriction.
What is osmosis?
What is osmosis?
The two main types of vascular tissue in plants are the _______ and _______.
The two main types of vascular tissue in plants are the _______ and _______.
Match the following substances with their mode of crossing the cell membrane:
Match the following substances with their mode of crossing the cell membrane:
What happens to water molecules during osmosis?
What happens to water molecules during osmosis?
An impermeable membrane allows substances to pass through freely.
An impermeable membrane allows substances to pass through freely.
Define a permeable membrane.
Define a permeable membrane.
What is the primary function of xylem tissue in plants?
What is the primary function of xylem tissue in plants?
Phloem cells are involved in the transport of water in plants.
Phloem cells are involved in the transport of water in plants.
What process allows water to move from the roots to the leaves of a plant?
What process allows water to move from the roots to the leaves of a plant?
The __________ are crescent-shaped cells that regulate the opening and closing of stomata.
The __________ are crescent-shaped cells that regulate the opening and closing of stomata.
Match the following types of cells with their primary functions:
Match the following types of cells with their primary functions:
Which of the following is NOT an advantage of being multicellular?
Which of the following is NOT an advantage of being multicellular?
Red blood cells have a large surface area to efficiently pick up oxygen.
Red blood cells have a large surface area to efficiently pick up oxygen.
What do stomata do in the process of transpiration?
What do stomata do in the process of transpiration?
What is the primary function of saliva in the mouth?
What is the primary function of saliva in the mouth?
The esophagus is responsible for the absorption of nutrients.
The esophagus is responsible for the absorption of nutrients.
What is the main role of the liver in digestion?
What is the main role of the liver in digestion?
The ______ is the chamber where feces are stored before exiting the body.
The ______ is the chamber where feces are stored before exiting the body.
Match the following parts of the respiratory system with their functions:
Match the following parts of the respiratory system with their functions:
Which organ is responsible for pumping blood throughout the body?
Which organ is responsible for pumping blood throughout the body?
Arteries carry oxygen-poor blood away from the heart.
Arteries carry oxygen-poor blood away from the heart.
What is the process through which the lungs perform gas exchange?
What is the process through which the lungs perform gas exchange?
Which component of blood is responsible for carrying oxygen?
Which component of blood is responsible for carrying oxygen?
High cholesterol does not contribute to circulatory disorders.
High cholesterol does not contribute to circulatory disorders.
What are the main components of blood?
What are the main components of blood?
________ are essential for muscle growth and repair of tissues.
________ are essential for muscle growth and repair of tissues.
Match the following respiratory disorders with their characteristics:
Match the following respiratory disorders with their characteristics:
Which type of tissue is responsible for moving parts of the body?
Which type of tissue is responsible for moving parts of the body?
Epithelial tissue serves to transport materials in the body.
Epithelial tissue serves to transport materials in the body.
Name one function of the contractile vacuole in cells.
Name one function of the contractile vacuole in cells.
The _____ system is responsible for gas exchange in the body.
The _____ system is responsible for gas exchange in the body.
Which organ is part of the circulatory system?
Which organ is part of the circulatory system?
Plants have more complex systems than animals.
Plants have more complex systems than animals.
What is the primary role of xylem in plants?
What is the primary role of xylem in plants?
Pseudopods are used by amoeba to _____ their prey.
Pseudopods are used by amoeba to _____ their prey.
Which of the following tissues supports and connects different parts of the body?
Which of the following tissues supports and connects different parts of the body?
Flashcards
Diffusion
Diffusion
The movement of molecules from an area of high concentration to an area of low concentration due to random motion.
Semi-permeable membrane
Semi-permeable membrane
A membrane that allows certain molecules to pass through while blocking others.
Osmosis
Osmosis
The movement of water across a semi-permeable membrane from an area of high water concentration to an area of low water concentration.
Cell Membrane
Cell Membrane
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Vascular Tissue
Vascular Tissue
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Xylem
Xylem
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Phloem
Phloem
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Permeable Membrane
Permeable Membrane
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Xylem Tissue
Xylem Tissue
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Phloem Cells
Phloem Cells
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Transpiration
Transpiration
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Stomata
Stomata
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Guard Cells
Guard Cells
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Transpiration Stream
Transpiration Stream
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Cell Specialization
Cell Specialization
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Advantages of Being Multicellular
Advantages of Being Multicellular
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What is plasma?
What is plasma?
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What do red blood cells do?
What do red blood cells do?
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What are white blood cells for?
What are white blood cells for?
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What do platelets do?
What do platelets do?
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What are some common disorders of the circulatory system?
What are some common disorders of the circulatory system?
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What does the excretory system do?
What does the excretory system do?
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What are capillaries?
What are capillaries?
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What is the brain's role in the nervous system?
What is the brain's role in the nervous system?
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What is the spinal cord's role in the nervous system?
What is the spinal cord's role in the nervous system?
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What are nerve cells?
What are nerve cells?
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Digestion
Digestion
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Esophagus
Esophagus
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Liver
Liver
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Gallbladder
Gallbladder
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Pancreas
Pancreas
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Small Intestine
Small Intestine
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Large Intestine
Large Intestine
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Contractile Vacuole
Contractile Vacuole
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Food Vacuole
Food Vacuole
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Pseudopods
Pseudopods
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Tissue
Tissue
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Connective Tissue
Connective Tissue
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Epithelial Tissue
Epithelial Tissue
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Muscle Tissue
Muscle Tissue
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Nervous Tissue
Nervous Tissue
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Root System
Root System
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Shoot System
Shoot System
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Study Notes
Movement in Cells
- Diffusion: Molecules move from high concentration to low concentration due to kinetic energy
- Semi-permeable Membrane: Allows certain molecules to pass, rate depends on pressure, concentration, temperature and permeability of membrane
- Osmosis: Water diffuses across a semi-permeable membrane from high to low concentration, always moving towards higher solute concentration.
- Cell Membrane: A semi-permeable membrane controlling what goes in and out of the cell.
- Some substances pass freely (oxygen, water, carbon dioxide) between phospholipids
- Others are allowed through proteins (channels) (sugars, charged ions)
- Some substances cannot pass at all
Cell Specialization and Organization
- In multicellular organisms, different cells have specific jobs (specialized)
- Muscle cells are shaped for movement
- Skin cells protect from drying
- Nerve cells transmit signals
- Red blood cells carry oxygen
Tissues and Organs
- Tissues: Groups of similar cells
- Connective (bone, blood)
- Epithelial (skin)
- Muscle (movement)
- Nervous (signals)
- Plant tissues (epidermal, xylem, phloem)
- Organs: Distinct structures that perform specific functions
- Examples: heart, kidneys, lungs (in humans), roots, stems, leaves (in plants)
Plant Systems
- Plants have fewer systems than animals:
- Roots: anchor, absorb water/nutrients, store food
- Shoot system: photosynthesis (sugar production), reproduction (reproduction by flowers, fruits, seeds sometimes)
Human Body Systems
- Digestive System: Breaks down food, absorbs nutrients, expels waste
- Respiratory System: Inhale oxygen, exhale carbon dioxide, gas exchange
- Circulatory System: Transports food and oxygen throughout the body using heart, blood, blood vessels (arteries, veins, capillaries)
- Nervous System: Coordinates and controls body actions, detects, processes, and responds to stimuli
- Excretory System: Removes waste (urine) from the body
Body Systems and Health
- Blood: Transports substances, oxygen, wastes, nutrients; made of plasma, red/white blood cells, platelets.
- A Healthy Lifestyle: Promotes healthy function of body systems
- Diseases: Some diseases affect the circulatory, respiratory, and digestive systems (e.g., high blood pressure, heart attacks, lung cancer, bronchitis).
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