biology all

• What is movement (biology)


  the ability of movement
• what is respiration?


  reactions in cells this breaks down nutrient molecules and releases energy
• what is sensitivity?


  Ability to detect and respond to changes, internal or external
• what is growth?


  growth, increase of height
• what is reproduction?


  process that makes organisms
• excretion what is it?


  removal of waste products of metabolism
• what is nutrition?


  taking in of materials for energy growth
• what is a Eukaryotic 


  eukaryotes dna is a form of chromosomes or found in nucleus
• what is a prokaryotes (bacteria)


  these do NOT have a nucleus their Dan is loose in cell
• what are plants?


  multicellular organisms
• what do plants contain?

  chloroplasts, cellulose and cell walls
• what do plant cells store?

  store carbohydrates such as starch of sucrose
• what are animal cells?

  Eukaryotic cells
• what type of organisms are animal cells

  multicellular
• do animal cells contain chloroplasts?


  their cells do not contain chloroplasts and are not able to carry out photosynthesis
• what do animal cells store?

  energy, nutrients carbohydrates such as glycogen
• fungi cells can or can't carry out photosynthesis?

  can't
• what are some common features shown by prokaryotic organisms?

  • have a cell wall
• what are some common features shown by prokaryotic organisms?

  has a cell wall, lack a nucleus, contain a circular chromosome of DNA examples such as lactobacillus
• what's a pathogen?


  a pathogen usually defined as a microorganism causes diseases
• what may pathogens include?

  may include fungi, bacteria protoctists or viruses
• what's an organelle?


  an organelle is a component within a cell that carries out a specific task
• what's a cell?


  basic functional and structural units in a living organism
• what's a tissue?


  a group of cells of similar structure working together to perform a particular function
• what's an organ?


  made from a group of different tissues working together to perform a particular function
• what's an organ?


  made from a group of organs with related functions
• what's a nucleus?

  center, membrane bound organelle that contains genetic material
• what's a cytoplasm?

  material that fills cell to facilitate chemical reactions and holds organelles in places
• what's a cell membrane?

  phospholipid bilayer that CONTROLS.the movement of substances into and out of the cells
• what's the difference between animal and plant cells?

  Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not.
• what is the importance of cell differentiation in the development of specialised cells?


   they are able to perform a specialised function in the body.
• What's the chemical elements present in carbohydrates, proteins and lipids

  (fats and oils)

  carbon, hydrogen and oxygen
• what do carbohydrates contain

  they contain the elements carbon, hydrogen and oxygen
• what do glucose molecules contain

  Glucose molecules contain lots of energy which can be released in respiration by breaking the bonds between the carbon atoms
• when is maltose formed

  • Maltose is formed from two glucose molecules
• when is sucrose formed

  sucrose is formed from one glucose and one fructose molecule
• when are Starch, glycogen or cellulose formed

  all formed when lots of glucose molecules join together
• what's the test for glucose?

  • add Benedict's solution
• what's the test for glucose?

  • add Benedict's solution
  • heat in a boiling hot water bath for 5 minutes
  • take test tube out and observe the water
  • a positive test will show the colour change from blue to orange/brick red
• what's the test for starch?

  use iodine to test for presence or absence of starch

  add drops of iodine solution to the food sample

  a positive test will show a colour change from orange to blue/ black