Science biology

Cards (29)

  • where is deoxygenated blood carried?

    it is carried in the right side of the heart in the right atrium
  • 3 things that cause poor healthcare
    Poor diet- can cause diabetes And obesity
    smoking- lung and mouth cancer
    lack of exercise- cardiovascular disease
  • What is photosynthesis
    Endothermic reaction
    process by which plant and other organisms produce glucose (food)
    carbon dioxide + water = glucose + oxygen
  • Aerobic respiration
    Respiration with oxygen
    oxygen + glucose = carbon dioxide +water + energy
  • Anaerobic respiration
    Respiration without oxygen
    glucose = lactic acid + energy
  • What is a tissue
    A group of cells with similar function and structure
  • What is meiosis ?
    Cells in reproductive organs divide by meiosis to form gametes
  • What is an enzyme ?
    enzymes are proteins that act as a biological catalyst to speed up chemical reactions in the body
  • Root hair cell
    Cells found in the roots of plants
    has a large surface area to absorb water and nutrients
  • Test for starch
    Iodine. turns black if starch is present
  • Test for sugar
    Benedict. turns red if present
  • Test for protein
    Biuret. Turns purple if present
  • Test for lipids
    Emulsion turns milky if present
  • Alveoli
    Millions of tiny air sacks which produce large surface area for gas exchange
  • Osmosis
    diffusion of water across a partially permeable membrane from a dilute solution to a concentrated solution
  • 4 pathogens
    Virus, protist, bacteria, fungal
  • Bacteria diseases
    Salmonella gonorrhoea
  • Fungal disease 

    Rose black spots
  • Protist disease 

    Malaria
  • Virus disease 

    Measles , HIV, covid, TMV
  • Ribosomes
    Protein synthesis
  • Mitochondria
    Aerobic respiration
  • nucleus
    Genetical information, DNA
  • Chloroplast
    Photosynthesis
  • Prokaryotic
    Single cell organism, no nucleus!!!
  • Meiosis
    Cell division in reproductive organs to form gametes
  • Mitosis
    Cell division into two identical daughter cells
  • Biotic factors
    Living things
  • Abiotic factors
    Non living things