What mode of transport do neurotransmitters use to travel across the s2hrd29 uy,o7x i/ rf4gqdl4baynaptic clef9ldfhrr g 4x4,i27/dou ay2q bt?

  What is the name of the organell fqaxfg*k6d; ;e on the surface of the rough endoplasmic reticulum that is needeq fk*gad;fx ;6d to synthesise polypeptide chains?

  Which of the followi+xfcz/1cag o,5rok 7 mng is true of centrifugation?

  The image below is a microgvk6d*p:prs- g byn1y 361xbe xraph of blood.


1.Identify the part of the cells labelled A and B.
arrow    points to the nucleus; arrow   points to the plasma membrane
2.Outline why blood is classified as a tissue.

3.State where the stem cells needed to produce red blood cells are located.

4.Progenitor cells are produced by dividing stem cells. These cells will eventually differentiate even further. Blood cells have a common progenitor cell. Describe the process that happens to these progenitor cells.

  The diagram shows prophase, an early stanfy2 ;uvq3mcp4ix-kg v+j +d:ge of mitosis.

What is the fate of the nuclear membrane immediately after prophase is complete?

  The following micrograph shows part of a h4 8cdaxw84x1 2a wnctchloride cell. What statement is true about the parts of the 4 1an2da84h c 8cxtwwxcell labelled X and Y?

  Identify the row which is co39h+pt hpe:6 zr6xaio rrect regarding the components of cells.

  Which of the following substances cannot pass through the po dx 4x/5olqq+u0/gnw tres of the nuclear membno5gux0q+/ tl4wqx d /rane?

  Which of the following processes occur in prokaryotic celw2 uk(s;nm t1hzhq.s/ sk(f1fls but not eukaryotic cells?( w.s uhknf m;s/k2 qz1h(s1ft

  Which statement applies 9:.bkyf ,exld cr/2 tb:z2vnkto a lysosome?

  Which technique was first developed to separate :-: 33ktzhsjeoaqh0tws *w/z cellular components and isolate organe3- :jwssqtozt3 : /kaw* hhze0lles?

  Which of the following accurately describes a key difference in transcri ob6leozj(1fn *k-0mx, ct+abo-7s smption between ob(06fme a-n *b o ,1o7tksx s+-clzmjprokaryotes and eukaryotes?

  The diagram shows theq( 9wdanzl + w7zpze(- process of phagocytosis.

1.On the diagram, label a lysosome using the letter L.

2.State, with a reason, whether a lysosome is an organelle or not.
A lysosome is an    because it is adapted to perform a specific function
3.Predict, with a reason, how a cell might be affected if the enzymes present in lysosomes were not stored within a phospholipid bilayer.

4.Describe how ultracentrifugation is used in the study of organelles.

5.Distinguish between prokaryotes and eukaryotes, in terms of compartmentalisation.

6.Explain how compartmentalisation is beneficial during phagocytosis.

1.Compare and contrast the structure and function of free ahde7u/, s 5ogbnd bound ribosomes.

2.Describe the steps in the initiation of translation.

3.Explain how the bonds between amino acids contribute to the structure of proteins.

  What is the fate of a ribosome after translation is comp6.h.p-w hkyc 80mbhufh)(soa leted?

1.Outline how gel electrophoresis separ5 ohbzokk,fy/:t -1jo2/olt3p hg o:aates molecules and suggest a use for this separatkt/o zh 3-o,ooy :palf2g 5jt1o k:/hbion technique.

2.Explain how compartmentalisation is advantageous to eukaryotic cells.

3.In eukaryotic cells, transcription occurs in the nucleus and translation occurs in the cytoplasm. Explain the benefits to the cell of this physical separation.