What mode of transport do neurotransmitters use to travv hnsc56tsye(f:m)pk d-u 7v1el across the synaptic clef7h cvuyssf1-d n 6( m5tepv:)kt?

  What is the name of the organelle on the surface of the rough endoplasmic ,aqd h0a/o jcg,a e*2freticulj dq, *o0a,g/2fcae ahum that is needed to synthesise polypeptide chains?

  Which of the following is true of ceegr)+- ao lpn.n 7rwj(ntrifugation?

  The image below is a micrograph of y5p7kd tkc7p.jhky1 * 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 stage of mi(ir mmr5zhry6(o 6 9kb3+t ikdna vd//tosis.

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

  The following micrograp);xgi.l m6 w6 y3kldauvfqf * oh)h3h8 0etwm8h shows part of a chloride cell. What statement is true about the parts of the h w8hk )ffmvmx6i.68)tg d0alhe u;wq33 oy*lcell labelled X and Y?

  Identify the row which is corr-xon2 rflg a/vi.8+t xect regarding the components of cells.

  Which of the following substances cannot pass through the pores olyfv82 z2lyp /lmjl0 mx: )h5uf the nuclear mem) :llmmy jzvy0lxh/8f p5u 22lbrane?

  Which of the following pr )b*gvx p*4hsgocesses occur in prokaryotic cells but not eukaryotic cellss hx)4pv*b*gg ?

  Which statement applies to a lysezz7k yu94n 5g7 swmzy-op0 *k4zd+j mosome?

  Which technique was first developed to separqh t-bwykqsud. d91kc12 j/g;ate cellular components and isolate organellesw2u /g ky 1tdqsjcq9dk.b;h-1?

  Which of the following accul6h1jjp (q9rg ih.)parately describes a key difference in transcription between pr( 9g)jhlhq ia r6.pjp1okaryotes and eukaryotes?

  The diagram shows the process 0vphgu8yf1mwd,g 4 5yr.;qsr 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 (h+2* q92 hjtbfbebsc and function 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 trantov3ne d;n -u0slation is completed?

1.Outline how gel electrophoresis separates molecules and suggest a ujo8njlax)1 70 cfly ;qse for this separation technilayoqlf7 1xjj0;nc 8)que.

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.