Cells

• What are parts d and e?

  D - granum

  E - starch

  
• what does rough endoplasmic reticulum do?


  Protein synthesis
• what does a Golgi apparatus do?


  modifies the protein
• What does the mitochondria do ?


  goes through aerobic respiration
• cells that secrete enzymes contain a lot of rough endoplasmic reticulum and a large golgi apparatus.

  Describe how rer is involved in the production of enzymes.

  Rough endoplasmic reticulum has ribosomes to make proteins

  Enzymes are proteins
• How is the Golgi apparatus involved in production of enzymes?

  The Golgi apparatus packages the enzyme and puts it into Golgi vesicles
• What has stacked membranes arranged in parallel and contains dna?

  Chloroplast
• What is made of polysaccharides?

  Cell wall
• What is an organelle and is not surrounded by 2 membranes?

  Golgi apparatus
• The gland cells have adaptions that include many mitochondria and golgi vesicles.

  explain the role of these cell adaptations in the production and secretion of breast milk.

  1. Many mitochondria releases energy to synthesise of proteins
  2. The many Golgi vesicles transport proteim ou go through cell!
• What are a and b?

  a-stoma

  b- granum

  
• Name the parts labelled A and B and describe their role in photosythesis.

  1. granum - chlorophyll molecules have light absorbing pigments
  2. Stoma - contain enzymes part of a light independent reaction

  
• What is the Main substance present in label c?

  Starch

  
• The diagram shows two organelles found in a eukaryotic cell.

  Name the organelles.

  Explain how the inner membrane is adapted to its function in organelle A.

  • organelles - (A)mitochondrion and (B) nucleus
  • The inner membrane has an increased surface area for respiration

  
• The name and function of w and z?

  W- chloroplast for photosynthesis

  Z-nucleus which contains dna

  
• what is the link between muscle cells and mitochondria?

  Mitochondria is the site of respiration that produces energy for muscle contraction
• explain the link between rough endoplasmic reticulum and enzyme secreting cells from salivary glands.

  Enzymes are proteins, proteins are made on ribosomes
• how does a tadpoles tail absorb as a tadpole changes into a frog?

  lysomes produce enzymes which hydrolyse proteins
• What are the organelles labelled?

  B -Golgi apparatus

  C -Mitochondria

  
• Some prokaryotic cells can divide every 30 mins. A liquid culture contained a staring population of 1.35 x10^4

  Asumming each cell divides every 30 mins calculate how many cells there will be every 3 hours.

  • how many divisions in 3 hrs so 3hrs divided by 30 = 6
  • So 6 divisions will happen where every cell splits into 2 daughter cells.
  • 2x10^6 = 64
  • 1.34 x 10^4= 13,500 cells
  • 13500 x 64 = 864,000 after 3 hours