Cells, Tissues & Organs.

Cards (29)

  • Cells->Tissue->Organ->Organ System->Organism.
  • An organ is a group of tissues working together to perform a specific task
  • A tissue is made up of cells that are similar in structure and function
  • The human body has many organs which work together as part of an organ system
  • A tissue is a group of cells that work together to do the same job
  • The human body has four main types of tissue; epithelial, connective, muscle and nervous tissue.
  • Connective tissue binds other tissues together and provides support.
  • Organs systems have different functions such as the circulatory system transports blood around the body or the respiratory system brings oxygen into the lungs
  • Cells are the basic building blocks of life; Cells that have similar functions form a tissue; two or more types of tissue working together form an organ; organs work together to form an organ system; two or more organ systems make up an organism.
  • The body is organised into
    • Cells
    • Tissues
    • Organs
    • Organs systems
  • The systems of the human body:
    • Circulatory System
    • Nervous System
    • Respiratory System
    • Digestive System
    • Skeletal System
    • Integumentary System
    • Muscular System
    • Endocrine System
    • Cardiovascular System
    • Lymphatic System
    • Urinary System
    • Reproductive System
  • The skeletal system maintains the structure of the body and its organs, providing protection.
  • The circulatory system, also known as the cardiovascular system, circulates the blood around the body, delivering oxygen and nutrients to organs and cells and carrying their waste products away, as well as keeping the body’s temperature in a safe range.
  • The digestive system is a system to absorb nutrients and remove waste, functioning via the gastrointestinal tract, including the mouth, oesophagus, stomach, and intestine.
  • The nervous system collects and processes information from the senses, then tells the muscles to contract to cause physical actions.
  • The respiratory system brings air into and out of the lungs to absorb oxygen and remove carbon dioxide.
  • Plant Cell- Nucleus, Cytoplasm, Cell Membrane, Cell Wall, Ribosome, Mitochondrion, Chloroplast,, Permanent Vacuole.
  • Animal Cell- Nucleus, Cytoplasm, Cell Membrane,Ribosome,Mitochondrion
  • A Plant Cell contains a Permanent Vacuole.
  • A plant cell has a rigid cell wall made up of cellulose fibres that gives it shape and support.
  • Permanent vacuoles store water and other substances such as sugars and salts.
  • Chloroplasts are found only in plants and contain chlorophyll which absorbs light energy needed for photosynthesis.
  • Chloroplast is found only in plants cells where photosynthesis takes place.
  • Cell Membranes control what substance enters and leaves the cell.
  • The nucleus controls all activities within the cell.
  • Ribosomes make proteins from amino acids.
  • Mitochondria produce ATP (energy) through respiration.
  • Lysosomes break down waste products inside the cell.
  • Vacuole stores food and waste products.