What mode of transport do neurotransmitters use to travel across the synapticnbwtpq1u2 5qw0if jvi+1 xb47 cleft7 b4q1w0qjxfp 2 5 1+bvwtiniu?

  What is the name of tw6xs(u(hu 34xec2ms:yl lej ;he organelle on the surface of the rough endoplasmic reticulum that is needed to synthesise polsxye jw(4lu63c 2;e:(hsmx ulypeptide chains?

  Which of the following is true of cen 35lvs6ao87 5dpzi lvatrifugation?

  The image below is a micrograph of blood. hvi(iwfa5-u, sgtnhlu a+(*6


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 propet8.wx ;0d gw;, liefuqiq9, bhase, an early stage of mitosis.

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

  The following micrograph shows part of a co ,7iuz rr*e-e,nxcp3hloride cell. What statement is true about the parts of thee i-euz x,rno*7pr,c3 cell labelled X and Y?

  Identify the row which is t(f./2w f)iwq1 i)ms exolo2mcorrect regarding the components of cells.

  Which of the following substances cannot pass through the porz aaity-2j.a- xo4) rses of the nuclear membrane si.yj z-aa4) 2-rotxa?

  Which of the following processes occudd1+o 4rmo)bq r in prokaryotic cells but not eukaryotic cells?q4 odbd 1+ro)m

  Which statement applnlgr0uo(:i:dtv rcj p9ec ,0ss3 u (t;ies to a lysosome?

  Which technique was first developed to separate cellular compo7t7iuc;f5 kp7ag9lb znents and isolate organeltc ;9u g7pfblakiz775les?

  Which of the following accurately describes a key difference in transcript4r 5 y q ttyc2ub5/snef:fwgg;-5m1adion be;syurt-t:mf2dn1g/bw5q fyg4 55 c eatween prokaryotes and eukaryotes?

  The diagram shows the ojgo +,ltnyu3fc;ld2q 74 saq ;1p /bqprocess 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 and bound ribosomes.h5y1-io*bpj k

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 coml v44rcqq+ p(ppleted?

1.Outline how gel electrophoresis separates molecules and suggest a use foruyk.9ika.*t th 1 8eh wn9wb os0jc9z9 this separation teiw1uhw ajcnb8 oke.9t*.t9zh s9 y0k 9chnique.

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.