Unit B Full Review Mixed
23 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary function of xylem in plants?

  • Providing structural support
  • Transporting food
  • Transporting water (correct)
  • Storing nutrients
  • Water moves from an area of high concentration to an area of low concentration.

    True (A)

    What is the primary difference between mechanical and chemical digestion?

    Mechanical digestion involves the physical breakdown of food using structures like teeth and muscle contractions in the stomach. Chemical digestion involves the breakdown of food molecules through enzymatic reactions.

    Pepsin, an enzyme found in gastric juice, plays a crucial role in the breakdown of ______.

    <p>proteins</p> Signup and view all the answers

    Match the following complex molecules with their corresponding building blocks:

    <p>Complex Carbohydrates (Starch) = Sugar Lipids (fats) = Fatty Acids Proteins = Amino Acids Vitamins = Vitamins Minerals = Minerals</p> Signup and view all the answers

    Villi are finger-like projections that increase the surface area of the small intestine for enhanced absorption.

    <p>True (A)</p> Signup and view all the answers

    Explain what happens to the Bromothymol Blue solution when you exhale into it. What does the change in color indicate?

    <p>When carbon dioxide (CO2) is exhaled into the Bromothymol Blue solution, it causes the solution to turn from blue to green and then to yellow. This color change indicates the presence of CO2 in the exhaled air.</p> Signup and view all the answers

    What is the primary function of the diaphragm in breathing?

    <p>The diaphragm is a dome-shaped muscle that contracts and flattens during inhalation, expanding the chest cavity and drawing air into the lungs. During exhalation, the diaphragm relaxes, returning to its dome shape and forcing air out of the lungs.</p> Signup and view all the answers

    What type of blood vessel carries blood away from the heart?

    <p>Artery (B)</p> Signup and view all the answers

    Identify two locations in the body where gas exchange occurs. What type of blood vessel is involved in this exchange?

    <p>Gas exchange occurs in the capillaries of the lungs (alveoli) and in the capillaries of the body tissues. This exchange takes place in the capillaries, which are thin-walled blood vessels that allow for the diffusion of gases between the blood and surrounding tissues.</p> Signup and view all the answers

    What is the primary function of platelets?

    <p>Blood clotting (B)</p> Signup and view all the answers

    The liver produces urea as a waste product from ammonia.

    <p>True (A)</p> Signup and view all the answers

    What are the three main sections of the brain?

    <p>Cerebrum, Cerebellum, Medulla</p> Signup and view all the answers

    A _____ is a nerve cell that transmits signals in the nervous system.

    <p>neuron</p> Signup and view all the answers

    Match the following respiratory conditions with their definitions:

    <p>Asthma = Condition where air passages narrow causing difficulty to breathe Bronchitis = Mucus in the air passages builds up causing difficulty to breathe Emphysema = Inflation of alveoli reducing lung capacity making it difficult to breathe Atherosclerosis = Build up of cholesterol in arteries creating blockage disrupting blood flow</p> Signup and view all the answers

    Which of the following is NOT one of the six characteristics of living things?

    <p>Can fly (D)</p> Signup and view all the answers

    The liver is the largest organ in the human body.

    <p>False (B)</p> Signup and view all the answers

    What is the process called when particles move from high concentration to low concentration?

    <p>Diffusion</p> Signup and view all the answers

    The __________ is the organ system that includes the heart and blood vessels.

    <p>circulatory system</p> Signup and view all the answers

    Match the following organisms with how they move:

    <p>Amoeba = Pseudopods Paramecium = Cilia Fish = Gills Mammals/Birds = Lungs</p> Signup and view all the answers

    What defines a structural adaptation?

    <p>A change in structure to survive (B)</p> Signup and view all the answers

    Unicellular organisms have multiple cells.

    <p>False (B)</p> Signup and view all the answers

    Name a structure and its function in an organism.

    <p>Examples can vary, but one example is a wing, which enables flight.</p> Signup and view all the answers

    Flashcards

    Characteristics of Living Things

    Six features that define living organisms, including made of cells and need for energy.

    Growth in Organisms

    An increase in the number of cells in an organism, known as growth.

    Structure and Function

    The relationship where the structure of an object determines its function.

    Structural Adaptation

    A physical change in a species' structure that helps it survive.

    Signup and view all the flashcards

    Largest Organ

    Skin is the largest organ in the human body.

    Signup and view all the flashcards

    Gas Exchange Structures

    Anatomical parts involved in gas exchange: gills for fish, lungs for mammals/birds, spiracles for insects.

    Signup and view all the flashcards

    Diffusion

    The movement of particles from an area of high concentration to low concentration.

    Signup and view all the flashcards

    Osmosis

    The diffusion of water across a selectively permeable membrane.

    Signup and view all the flashcards

    Function of Platelets

    Platelets are essential for blood clotting.

    Signup and view all the flashcards

    Urea

    Urea is ammonia transformed in the liver; a key waste component in urine.

    Signup and view all the flashcards

    Nephron Function

    A nephron is the kidney’s unit that filters and cleans blood.

    Signup and view all the flashcards

    Types of Neurons

    There are three types: motor, sensory, and interneuron, each serving a specific role in signaling.

    Signup and view all the flashcards

    Sections of the Brain

    The brain has three main parts: cerebrum (thoughts), cerebellum (balance), medulla (heart rate).

    Signup and view all the flashcards

    Xylem

    A type of tissue that transports water in plants.

    Signup and view all the flashcards

    Phloem

    A type of tissue that transports food in plants.

    Signup and view all the flashcards

    Mechanical Digestion

    The physical breakdown of food, such as chewing.

    Signup and view all the flashcards

    Chemical Digestion

    The breakdown of food using chemical reactions, like acids.

    Signup and view all the flashcards

    Gastric Juice Components

    Contains HCl, mucus, enzymes (Pepsin), and water.

    Signup and view all the flashcards

    Villi

    Small projections in the small intestine that increase surface area.

    Signup and view all the flashcards

    Arteries vs. Veins

    Arteries carry blood away from the heart; veins carry it to the heart.

    Signup and view all the flashcards

    Gas Exchange Locations

    Gas exchange occurs in capillaries and alveoli.

    Signup and view all the flashcards

    Study Notes

    Living Things - 6 Characteristics

    • Made of cells: All living things are composed of cells
    • Need energy: Living things require energy for their functions
    • Grow and develop: Living things increase in size and complexity
    • Reproduce: Living things create new organisms
    • Respond to the environment: Living things react to stimuli from their surroundings
    • Adaptations: Living things have special features to survive in their environment

    Structure and Function

    • Structure determines function: The shape of something dictates what it can do
    • Example: The shape of a bird's wing allows it to fly

    Structural Adaptation

    • A change in a species structure to help it survive
    • Example: various answers. (Provided context requires specific examples)

    Body Organs

    • Lungs are the largest organ in the body
    • Skin is the second largest organ in the body

    Scientific Drawings

    • Diagrams should be labeled.

    Cells, Tissues, Organs and Organ Systems

    • Similar cells create tissues
    • Different tissues create organs
    • Different organs create organ systems
    • Example: Muscle cells make muscle tissue, various tissues combine to form complex organs like the heart. The heart, arteries, capillaries, and veins all work together in the circulatory system.

    Unicellular vs Multicellular

    • Unicellular organisms consist of one cell
    • Multicellular organisms are made of many cells

    Cell Movement

    • Amoeba move using pseudopods
    • Paramecium move using cilia

    Diffusion and Osmosis

    • Diffusion: Movement of particles from high to low concentration
    • Osmosis: Diffusion of water through a membrane

    Water Movement

    • Water moves from a high concentration to a low concentration across a membrane
    • Explanation: Water moves across the selectively permeable membrane to equalize the concentration of water on both sides

    Xylem and Phloem

    • Both transport tissues in plants
    • Xylem transports water
    • Phloem transports food

    Digestion

    • Mechanical digestion: Physical breakdown (e.g., chewing)
    • Chemical digestion: Chemical breakdown (e.g., enzymes)
    • Components of gastric juice: HCl, mucus, enzymes (pepsin), water
    • Villi: Small projections increasing the surface area of the small intestine for nutrient absorption

    Complex Molecule Breakdown

    • Complex carbohydrates (starch) break down into sugar
    • Lipids (fats) break down into fatty acids
    • Proteins break down into amino acids
    • Vitamins and minerals remain the same at the molecular level

    Breathing and Exhalation

    • Exhaled air has carbon dioxide
    • Diaphragm acts as a muscle to pump air in and out of the lungs

    Body Systems

    • Muscles and Organs
    • Senses

    Heart Anatomy and Function

    • Blood vessels
    • Arteries carry blood away from heart,(thicker, higher pressure)
    • Veins carry blood to heart (thinner, lower pressure, valves)
    • Capillaries are where the exchange of gases and nutrients happens between blood and tissues. They are extremely thin and connect arteries to veins.
    • Locations of gas exchange in the body occur in the capillaries and the alveoli of the lungs.

    Excretion

    • Excretion removes waste from the body
    • Urea is a waste product made by the liver
    • The kidneys are responsible for filtering blood and producing urine
    • The Nephron is the working unit of the kidney

    Nervous System

    • CNS (Central Nervous System): Brain and spinal cord
    • PNS (Peripheral Nervous System): Cranial and spinal nerves
    • Types of neurons: Motor (sends signals to muscles/organs), Sensory (sends signals from senses to CNS), Interneurons (responsible for thinking/processing information)
    • Cranial and Spinal Nerves are part of the Peripheral Nervous System (PNS): True

    Brain Sections

    • Cerebrum (thoughts)
    • Cerebellum (balance)
    • Medulla (heart rate)

    Vaccines

    • Vaccines build immunity
    • Edward Jenner is credited with developing vaccines

    Respiratory Conditions

    • Asthma
    • Bronchitis
    • Emphysema
    • Atherosclerosis

    Lung Cancer

    • Cancer of the lungs

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    More Like This

    Biology Chapter 1: Characteristics of Living Things
    6 questions
    Characteristics of Living Things
    13 questions
    Características de los Seres Vivos
    8 questions
    Use Quizgecko on...
    Browser
    Browser