What mode of transpouk+ x(ldoo+b/u j0nx,y3y m 7zhdkh+-rt do neurotransmitters use to travel across the synaptic clef ,++ o3mh+kl7 o0h xyd zu-xk(yjud/bnt?

  What is the name of the organelle on the surface of the f8 p.l6k lfbuy/jyr(- rough endoplasmic reticulum that is needed to synthesise polypeptide cfy6p r-uf8.y/lkbj( lhains?

  Which of the following is true of centrifu mi:knot+p3p:;sb ld/ gation?

  The image below is a micrograph of blood.q:) a f:ge8y 1fh5 :-ecz:*mgenjfrj s


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 stage of mitosis. 1b ti0zfl2mo9yxb, f6

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

  The following micrograph shows part of a chloride cell. We k1d ,rkdjhywpw*.i b-q-*tngu3+*what statement is true abouj qdt+nd *w3ibk,wh.- e1uyrk*w- p*gt the parts of the cell labelled X and Y?

  Identify the row which is correct regarding the comc6 mw .8wtr9ub:/oidlponents of cells.

  Which of the following substances cannot pass througu6bey) tukacw20 :3koh the pores of the nuclear mem3kt)cuk woaueb: 2y 60brane?

  Which of the following processes occur in prokaryotic cells but not d yzk lk-:xyv +44swk3eukaryotic cellsl3z-y 4ky:4 sdx+ wkkv?

  Which statement applies to a lysoscn e u*(7pgig+ome?

  Which technique was first developed to separate cellular kq +uyo -o-/ )6d ;141sxud7cz*als ddv puddhcomponents and isolate orgas)v1c o-zk ;71+hdl-dp ay */dd du6dsuou x4qnelles?

  Which of the following accurately describes a key differ9 ;al8vy hnbmh95wfb0ence in transcription between prokarybay;9h w ml509nvbhf8otes and eukaryotes?

  The diagram shows the process of phago taskof65j6 w7yeq b8lh5)oq1cytosis.

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 funcmtgu;- t b ydw3*b(0jhtion of free and 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 translation6/(l 3x*,sc fx ywyijx is completed?

1.Outline how gel electrophoresocfm:r 8l3i.zis separates molecules and suggest a use for this sepl zo 38fir:.cmaration 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.