Careers360 Logo
Search Colleges, Exams, Schools & more
ask-icon
share
    1. Home
    3. Study Material
    4. Phylum Porifera and its Morphological Features MCQ - Practice Questions with Answers

    Phylum Porifera and its Morphological Features MCQ - Practice Questions with Answers

    Updated on Sep 18, 2023 18:34 AM

    Quick Facts

    • Physiology of Porifera is considered one of the most asked concept.

    • 14 Questions around this concept.

    Solve by difficulty

    QuestionEASY

    Digestion in Porifera is

    View Solution

    Concepts Covered - 1

    Physiology of Porifera

    Digestion in Porifera

    • Sponges lack a digestive system. 
    • The nutrition is performed by choanocytes that trap the phytoplanktons and digest them through phagocytosis. 
    • Hence, digestion is intracellular. 
    • The amoebocytes transfer food from choanocytes to other cells. 
    • The pinacocytes digest larger plankton. 

    Respiration in Porifera

    • Sponges do not have a respiratory system. 
    • The exchange of gases occurs via diffusion across the cell surface. 
    • The oxygen is diffused in from water current and carbon dioxide diffuses out. 

    Excretion in Porifera

    • The excretory system is absent. 
    • Nitrogenous waste is disposed from the cells through the process of diffusion. 
    • Ammonia is the principal excretory waste.
       

    Study it with Videos

    Physiology of Porifera

    Study other Related Concepts

    Phylum Porifera and its Morphological Features Current Topic

    Concept of Living and Need for Classification
    Taxonomy and Taxonomical Aids
    Steps of Taxonomy
    Vernacular and Scientific Names
    Binomial Nomenclature
    Taxonomic Hierarchy In Biological Classification
    Taxonomical Aids
    Classification Systems
    Three domains of life
    History of Classification of Organisms

    "Stay in the loop. Receive exam news, study resources, and expert advice!"

    Get Answer to all your questions

    Student Community: Where Questions Find Answers

    Ask and get expert answers on exams, counselling, admissions, careers, and study options.
    Download Careers360 App
    All this at the convenience of your phone

    • Regular Exam Updates

    • Best College Recommendations

    • College & Rank predictors

    • Detailed Books and Sample Papers

    • Question and Answers

    Scan and download the app

    OR