Untitled Quiz
40 Questions
0 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 correct definition of an ecosystem?

  • The association between living components and non-living factors. (correct)
  • A community of different species living together in an area.
  • The solid portion of the earth consisting of rocks.
  • The gaseous layer surrounding the earth.

    • Which of the following correctly defines a biome?

  • The total number of organisms of the same species in an area.
  • A large terrestrial ecosystem with recognizable plants and animals. (correct)
  • A population of the same species living in a habitat.
  • The gaseous portion of the earth.

    • What does the biosphere encompass?

  • The non-living factors affecting living organisms.
  • The layer of life existing on the earth's surface. (correct)
  • The population of all organisms in one area.
  • Only the water bodies on earth.

    • Which component is classified as biotic within an ecosystem?

    <p>Green plants.</p> Signup and view all the answers

    What is an ecological niche?

    <p>The functional position of an organism in its habitat.</p> Signup and view all the answers

    What are decomposers primarily responsible for in an ecosystem?

    <p>Causing the decay of dead organisms.</p> Signup and view all the answers

    Which of the following is an example of an abiotic factor?

    <p>Minerals.</p> Signup and view all the answers

    What defines a population in ecological terms?

    <p>A group of organisms of the same species in a given area.</p> Signup and view all the answers

    What is the primary definition of growth in organisms?

    <p>An irreversible increase in volume and size</p> Signup and view all the answers

    Which component of an ecosystem is NOT considered abiotic?

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

    What process occurs after cell division that contributes to growth?

    <p>Cell enlargement</p> Signup and view all the answers

    During which stage of mitosis do chromosomes become visible and condensation occurs?

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

    What is the result of the process of mitosis?

    <p>Two identical cells with the same number of chromosomes</p> Signup and view all the answers

    Which of the following statements about interphase is true?

    <p>The cell appears normal and is not dividing</p> Signup and view all the answers

    Which of the following is a key process that cells undergo during differentiation?

    <p>Modification of cell structure and function</p> Signup and view all the answers

    What is NOT one of the stages of mitosis?

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

    Which characteristic of enzymes indicates that they are specific in their actions?

    <p>Enzymes only catalyze reactions for specific substrates.</p> Signup and view all the answers

    What is the effect of pH on enzyme activity?

    <p>Enzymes may become inactive if the pH is not suitable for their function.</p> Signup and view all the answers

    What role do co-enzymes play in enzyme activity?

    <p>They enhance the activity of enzymes.</p> Signup and view all the answers

    Which enzyme is responsible for protein digestion in the stomach?

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

    What is the primary function of amylase in the digestive system?

    <p>To convert starches and sugars into glucose.</p> Signup and view all the answers

    Which of the following statements about enzymes is correct?

    <p>Only a small quantity of an enzyme is needed to catalyze reactions.</p> Signup and view all the answers

    Where are proteases produced in the human digestive system?

    <p>Stomach and pancreas</p> Signup and view all the answers

    What happens to an enzyme if the temperature exceeds its optimal range?

    <p>It becomes inactive or denatured.</p> Signup and view all the answers

    What is the primary characteristic of diploblastic animals?

    <p>They have one opening for gut and waste.</p> Signup and view all the answers

    Which of the following statements best describes coelomate animals?

    <p>They possess a true body cavity fully lined by mesoderm.</p> Signup and view all the answers

    What is a defining feature of members of the phylum Porifera?

    <p>They lack specialized tissues, such as organs.</p> Signup and view all the answers

    Which anatomical feature is characteristic of the phylum Nematoda?

    <p>They possess a cylindrical shape.</p> Signup and view all the answers

    What unique adaptation do cnidarians possess for capturing prey?

    <p>Strong tentacles with stinging cells.</p> Signup and view all the answers

    Which statement accurately describes the body symmetry of flatworms?

    <p>They have bilateral symmetry.</p> Signup and view all the answers

    Which feature distinguishes acoelomate animals from other classifications?

    <p>Lack of a body cavity entirely.</p> Signup and view all the answers

    What type of reproduction is mainly observed in flatworms?

    <p>Sexual reproduction, often hermaphroditic.</p> Signup and view all the answers

    What is the primary role of photolysis in photosynthesis?

    <p>It splits water molecules to transfer light energy into chemical energy.</p> Signup and view all the answers

    What substance is produced as a waste product during the process of photosynthesis?

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

    Which molecules are combined in the dark reaction to produce phosphoglyceric acid (PGA)?

    <p>Carbon dioxide and ribulose diphosphate</p> Signup and view all the answers

    What is the main product of photosynthesis?

    <p>Simple sugars</p> Signup and view all the answers

    What is the purpose of translocation in plants?

    <p>To move sugars for storage throughout the plant.</p> Signup and view all the answers

    Which of the following processes is classified as chemosynthetic nutrition?

    <p>Bacteria using hydrogen sulfide to produce food.</p> Signup and view all the answers

    What role do ATP and NADPH play in the process of photosynthesis?

    <p>They provide energy and reducing power for chemical reactions.</p> Signup and view all the answers

    Which statement about the importance of photosynthesis is FALSE?

    <p>Photosynthesis produces only sugars.</p> Signup and view all the answers

    More Like This

    Untitled Quiz
    37 questions

    Untitled Quiz

    WellReceivedSquirrel7948 avatar
    WellReceivedSquirrel7948
    Untitled Quiz
    55 questions

    Untitled Quiz

    StatuesquePrimrose avatar
    StatuesquePrimrose
    Untitled Quiz
    18 questions

    Untitled Quiz

    RighteousIguana avatar
    RighteousIguana
    Untitled Quiz
    48 questions

    Untitled Quiz

    StraightforwardStatueOfLiberty avatar
    StraightforwardStatueOfLiberty
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser