Which statement about eukarp 3hg qkz6 y2pa5zn +4,yfl*lmyotic cells is correct?

  Which are common features of bac( ss92oq7z9r9gh huspterial cells?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is shown in the image?7bj u4y)kov;hlqal8: gnh9c 7

  Which statement(s) abounw;c .cuic/-mmmg jnc:c l7q/ z6j, p9t the endosymbiotic theory is true?
I.
It provides evidence for the origin of prokaryotes.
II.
It provides evidence for the origin of eukaryotes.
III.
It provides evidence for spontaneous generation.

  What provides evidence that all life on Earth evolved from /5 )6tacpogau ,nv wr.the same population oa.tu w)nao5v /6pcr ,gf cells?

  These photographs show the same section of a human retina. What* :x xip;i/aiiw8zym;qd 9uj38uol 2t is the reason for the difference between thm lx 2pix8:i/i8 ;3 *wti;au9qyj zuode two diagrams?

  Paramecium produces enzymes that catalyse different chemical reaction*xhn5 ll62gri)u d /l1pw z(rus taking place in the cytoplasm. u*5rlh2i1z)(nlx 6r gp/uwdl What function of life is demonstrated in this situation?

  What do the two labelled or;t(x kx)da3bg ganelles have in common?

  Which organelle has a j(nl5w ;-,xvd4 jajt;ye ddv0double membrane?

  Which row in the table correctly identifies structures which are pu.e6g w bc:l6cresent (✓) or absent (×) in prokaryoticw cc 6u:6lbg.e and eukaryotic cells?

  Which structure found in a e g+ z+y2b 4cpzedzw-lta9ht(*ukaryote has a double membrane?

  
Chlorella contains the molecule chlorophyll which makes it to appear green. What life function is exhibited in this example?

  Which of the following statem;otob8y )7yn vents are true about the structure of cells?
I. All cells contain cytoplasm enclosed by the plasma membrane.
II. The microscope was important in understanding the structure of the cell.
III. Prokaryotes do not have genetic material.

  Which of the following is r +3-k4hkrr3v/lxuh7q1n c) f0jrs ronot a function of the Golgi apparatus?

  Which statement(s) abkfa* z1rquo7r/s qs0a -;-qq oout cell structure is/are not true?

I.
Prokaryotic cells have a compartmentalised structure.

II.
Only eukaryotic cells have a Golgi apparatus.

III.
Only eukaryotic cells have membrane-bound organelles.

  The image below is a micrni8m*4 i:afluw/a0qoograph of blood.


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

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

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 micrograph below shows E. -1 *hpi(flb1 c4rszd icoli cells.


1.Identify the structure labelled I in the micrograph.

2.If the magnification of the image is x36,000 and the length of cell II in the image is 54 mm, calculate the actual length of cell II in micrometres (µm).The number=  µm.

3.State one feature, other than the structure labelled I, that can be used to identify the cells in this micrograph as prokaryotic cells.

  Which structure is found in b-fz,mhn cyu35r px-l;oth eukaryotic and prokaryotic cells?

  Mesophyll cells are found in plants. Plant cells have unique characteristics me tcwvtuk+s9d veyrr( p +e,0,/(a-kthat distinguish them from any other cell t ka ,0/erwtv ue+9+ky(pc,v mr-te(s dype.

In the micrograph above, one of the cell parts is labelled X. What is the name of this structure?

  The micrograph shows a transv6gff4k0ju 5p rhseeq5i +n+m) erse section through a leaf.



1.1.Identify an adaptation of this leaf for its function.

2.2.Identify the cell organelle that is found in particularly high numbers in the palisade mesophyll cells.
it is   .

This micrograph shows a transverse section through a pancreatic acinar cell. Acinar cells are found in the exocrine tissue of the pancreas.


2.1.Explain how the structure of this cell is related to the function of the synthesis of proteins for release from the cell.

2.2.State why an electron microscope is needed to view the ultrastructure of the acinar cells.

  Which row correctly describes the DNA and chromosomes of bacterial hluu31kqwnzrp;;w: q 0xvu / 1cells?

  Cyanobacteria are prokaryotes that can perform photosynthesis. Which structur 1rnb(f6 b9ypral feature is common to both yf(b19r6 p rbncyanobacteria and plant cells?

  Which statement provides evidence for theyp6j gz4 v m3u(()qtdd endosymbiotic theory?

  Which part of the celod.rvx5w 7h9njo i7hz x6xzj34 o+yg(l is labelled with the letter P?

  What feature of chloroplasts provides evidence for the endosymbioticfax* h,j fyhxup8: 0e, theory?

  The micrograph shows an image of a plant cell taken with a light ,u3*)5rcrkkm old/ gvmicroscope.

1.Calculate the magnification of the image, showing your work.
Magnification=   x

2.Label, with the letter N, a nucleus in the image.

3.The image was taken using a light microscope. State how you deduce this from the image.

4.Draw and label a diagram to show how the same type of plant cell shown in the micrograph would appear when examined with an electron microscope.

5.State two differences that would be seen when looking at an electron micrograph of a bacterium cell compared to this plant cell.

6.At first, the student who took this image could not see the cell when focusing the microscope. Suggest what may have caused this problem.

  The electron micrograph below shows a cell of n6 qa)hbx75g*r)a:urv ;mwa9m4 bdrvthe bacterium Vibrio cholerae. Which of the labelled structures maintains the cell’s shape and protects th x9mvn aabbw5:h6*m7grr)vr 4da ;q)u e cell from lysing during osmosis?

  Which process is most likely responsible for the origin of mitochondyv u vrcb-x;fo)a,3+sf1/gom 5 / wnezria as a eukaryotic oa/)ug,ocf/s nmr3 51wybx ;z -+vfevcell organelle?

  Which organelle is the site of protein synct(ari; fl:a 8thesis?

The diagram below shows a cyanobacteriu)mbeib1u l/heqrhi 7694 na1zm, Synechococcus elongatus.

1.1.State whether the cell shown in the microphotograph is eukaryotic or prokaryotic. Give a reason for your answer.

1.2.State two features found in both eukaryotic and prokaryotic cell structures.

1.3.Identify the type of microscope which was used to produce the microphotograph above. Give a reason for your answer.

1.4.Describe the function of X.

2.Compare and contrast the structure of the Golgi apparatus and rough endoplasmic reticulum.

  1.1.Identify an organell tv(j/9im5 ei*4f(bb 5m ubqsye visible in the figure below whose structure provides evidenc 5ej(fb4(biv 5m9 iutbs /qym*e for the endosymbiotic theory.
organelle is   



1.2.Label with the letter S an example of the organelle that you named in part (i).

1.3.Describe three features of the organelle named in part (i) that support the endosymbiotic theory.

2.Compare and contrast the structure of a mitochondrion and typical prokaryote.

  Which statements about unicellular and multicellular organisms are corhjz n0a/j w8/crect?

Below is a diagram of a motor neuron. Neurons are the longest cells in the c 3wjyl48wn,bp5pi 9dhuman ip4dw38pbj , 5wncl9y body.



1.Explain the factors that limit cell size in humans.

2.Explain how life functions are performed by Paramecium.

  The following electron micrograph a6 wij23z/-j+2odl(cxmnaes+ wr sjsa nt . +;shows part of an exocrine pancreas cell. Which of the labelled structures is responsible for the production (iw32. c l+/+ar no6n2e dtz+sw;m jjsajas- xof vesicles for exocytosis?

All organisms contain genetice e08j w7oc*sq material. The type, quantity and location of genetic material differ between kinqo0*c wsje8 7egdoms and species.

1.State if the cell shown in the image is a prokaryotic or eukaryotic cell. Give a reason for your answer.



2.Distinguish between prokaryotic and eukaryotic DNA.

3.Outline Cairns' technique for measuring the length of prokaryotic DNA.

  Which statements about chloroplxfsw */l t)d7bcm9zz+haa;4 nasts and mitochondria support the endosymbiotic theory;)fxa7sctzhlab+n*w94 /dmz ?

1.Outline the steps in calculating the magnification osdva7m n7n; wf b5re/76 -gjxcf a micrograph.

2.Describe the steps taken to focus on a specimen using the 40x objective lens of a light microscope.

  The diagram below shows a cellnrxok.u) e gx8*ne7 -77gabkh.


1.1.Deduce with a reason, what type of cell this is.

1.2.Calculate the magnification of the cell.The magnification of the cell=   x.

1.3.Outline two functions of life carried out by the cell in the diagram.

2.1.State the type of microscope used to produce the image.

2.2.Explain your choice of microscope for part (i).

  Palisade mesophyll cells produce0/a6ykc zl 3vi and release large amounts of carbohydrates. Which characteristics would you ex li/zc0 kv6y3apect to observe in such cells?

The diagram below shows a cell.w6 qh14cblqx:

1.1.Compare and contrast the structure of a mictochondrion with the structure of the cell shown in the diagram.

1.2.Explain why the cell in the diagram is structurally similar to a mitochondrion.

  Which statement applies to both mitochonhm-*se;*fpe(fr k y ,smnl 6l*dria and prokaryotes?

  What is the correct magnification of th g2b)wuhy2i a;is image?

  Which characteristic is nof+k bq1euv:q nq m-(6at true for both mitochondria and chloroplasts?

  The electron micrograph shows a prokaryotic cell, Cyclot)af:i9m .z fvrella litoralis. What is the acvz)mf9 :. iarftual diameter of the cell in this image?

  The electron micrograph sh9sswz n kj9w;/ows an animal cell.

  The electron micrograph shows a sarcomere, the smallest functacl( u6b 3cq2s+hou:i ional unit of striated muscle tissue. What is the actual length betweeu3 qch sbucol2(:+ia6 n the two Z lines?

  Which organelle is forme8 n(5cw wczgsaew1 em32r4u6ad by a vesicle derived from the cell membrane?

  Which organism contains DNA i b:moc -* /vb /kw.v vj1tz*o0vq:fyzbn exactly two different organelles?

1.Outline one way unicellular organisms can carry out each zr q 3kaq7; du(q1gn-hof nutrition, movement and ex;-kq7 r u1dqh3g (aqzncretion.

2.Draw a single mitochondrion, and annotate it to outline the role of four labelled structures.

3.Compare and contrast the structure of E. coli and a palisade mesophyll cell.

  What feature distinguishes fungal hyphae and stri44/ c w0:xaq afjzhmp.ated muscle from the two cell types shown in thf j40p.am4x z:/whcqa e images?