What mode of transport do neurotransmitters use to travel across thwa4py s5fwpbnz 5 zvm ia g-r4c.b,+46e synaptic clescb5ap 5+ipf.r6,w 44mv 4z -gwzynabft?

  What is the name of the organelpoqc.8p9l2 qble on the surface of the rough endoplasmic reticulum that is needed to synthesise polypeptide chaq. 2c8qlbop p9ins?

  Which of the following is t0ujfm35ibug 1o -jpu d-b2 (pprue of centrifugation?

  The image below is a micrhs( nlxazcl3 6(xn-. f;j sq-wograph 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 (nr+k 7q p)evmstage of mitosis.

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

  The following micrograph shows part of aw7lxib x3+b:h3cme/ bgp c /6n chloride cell. What statement is true abhb736gw xic+bbc3 / m xe:/plnout the parts of the cell labelled X and Y?

  Identify the row which is correct rwld+z p em, ,9z *loksq8m48hiegarding the components of cells.

  Which of the following substances cannot pass throuo)d8abldsw xhi o4/ a. y1+j6jgh the pores of the nuclear membraah+do a.dwjl4b ysi )x61j8 o/ne?

  Which of the following prp*0gqw,f . gvjocesses occur in prokaryotic cells but not eukaryotic cellqv0p f ,gjg.*ws?

  Which statement applies to a lysos*1fbza* cvv0aome?

  Which technique was first developed to separate cellular c hv w8:vow1o- so;y1itomponents and isolate organels vyh 8oi twov1o-;w:1les?

  Which of the following a v)i 63+8ixkzsh7lhan ccurately describes a key difference in transcription betw76ikxv8la)s 3h z+i hneen prokaryotes and eukaryotes?

  The diagram shows thegs(xud/ ankso h4;z 43peo5 n6 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 and bound ribosomes.po+ pf24vugvy+6u, cf

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 afteb ro)9i6l;tvor translation is completed?

1.Outline how gel electrophoresis separates molecules and s2v)-+6ica,q-fshuw kvc1gd auggest a use for this sepawd hci1)svqa,gf+k c6 u-- v2aration 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.