Which statement about eukaryotic cnxwuf-;4gu+ zells is correct?

  Which are common features of;+ai z nj6,nor bacterial cells?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is shown in th, c/ y ,cz;a6xucw3-xrss thqbf8.gl,e image?

  Which statement(s) about the endosymbiotic theory isbrv*xeh (u.q.n-n5ds 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 pd68wux)2mqa gx xi4-Earth evolved from the same population of cells?2 qp6 u)4xai8x gxm-dw

  These photographs show6:kfl+/6oif7iq k z db the same section of a human retina. What is the reason for the difference beti7kl+d 66/kzbiqf: o fween the two diagrams?

  Paramecium produces enzymes that catalyse different chemical reactionek w.ho.6/f utga;bn+s taking place+wageuh6 nf .b;.t/ok in the cytoplasm. What function of life is demonstrated in this situation?

  What do the two labelled orgsw/i -vom18 hn-cidn-,-y.pvhpi7z sanelles have in common?

  Which organelle has a doubldzs * flnf6 /3xaoxy/r2uca-0e membrane?

  Which row in the table correctly identifies structures which are puw.k(.,q cy1;hlzxo jresent (✓) or absent .j khq1;c uw.loyx (,z(×) in prokaryotic and eukaryotic cells?

  Which structure found in a eukavs/r s(2hxv:9u/e lhxryote 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 st1g,.q :z y:u (fn 2jpdwtza:qnatements 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 not al. 80--dr tuurk qjd/u function of the Golgi apparatus?

  Which statement(s) about0;,d pnd ucg 03oiak4b 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 micrograph oa:;/ ows42zteh wfm ogqw s.9:f 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. coli nami: -8 j4drcjy ,8gzcells.


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 both eukaryotic and prokaryotic cells?tafg:3mib 6+pq-3npw

  Mesophyll cells are found in plants. Plant cells have7l .hapcp: )o;ot2 kj zfmn/.w unique characteristics that distinctp j;2wkoz mno7pfa):l../h guish them from any other cell type.

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

  The micrograph shows a transverse section tb;cfld5 hu0c:xm)l +phrough 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 DNAe 9d7wn-klmo5 dfg/pt 7t,uq7 and chromosomes of bacterial cells?

  Cyanobacteria are prokaryotes that can perform photosynthec6jf ky2tm s*1d u3x qt/za/v.sis. Which structural feature is cocm/6*x d s1a/uvt z jk.2qytf3mmon to both cyanobacteria and plant cells?

  Which statement provides evidence for the entewzqeys2 +h-a,h wz j4 6q9e9 w0gvt/dosymbiotic theory?

  Which part of the cell is +y*l-abufqr+ labelled with the letter P?

  What feature of chloroplasts provides evidence for t/eicfcik;)r5 fv ;e1bqy2pzmbp :qx1gh(44v he endosymbiotic theory?

  The micrograph shows an image of a plant cell gti5z dd:3il0 taken with a light microscope.

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 the bacterium Vibrio ctj90hsyp ;+q1nm dz zfq4q71cholerae. Which of the la0f47dyq cnhp91qt+ ;qsmzj z1belled structures maintains the cell’s shape and protects the cell from lysing during osmosis?

  Which process is most likely resp;c da 8akraf+sbk5oo5/w( w:zonsible for the origin of mitochondria as a eukaryotic cell orga 8 f ww a;5+b(oak/r:oz5casdknelle?

  Which organelle is the site of protein syntm2jy 3t wf2/vyteo25jhesis?

The diagram below shows a cyanobacterium, Synechocl7woj,uh: g +hoccus 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 organelle visible in tewq :a,3z8kbnpx4h uywc 1 8e2he figure below whose structure provides evidence for the endosymbiotc,y438 2whnquxa1 zeb:kpw8eic 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 organiskz67ztfrf,;gqtsfk l e/5 :f3ms are correct?

Below is a diagram of a motor neuron. Neuronl.t he3d+je mpw 7e/+gf-v7has are the longest cells in the human p+ w7mth fh3jge evad/+l 7e.-body.



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

2.Explain how life functions are performed by Paramecium.

  The following electron micrfjcxn h;7jvfb4+/+3 dbu/:h j 2mrm evograph shows part of an exocrine pancreas cell. Which of the labelled structures is responsible for the production of vesicles f73h2f f4hb/md+vbu vn r/jjej xm: +;cor exocytosis?

All organisms contain genetic material. The type, quantity and location of gen)hawvt8cma+; w9(u1 v q; u.ri7guzf1 ri9sgfetic material differ between kingw7u ;).i (vuur8rzw; 1a1qmhti9f +sgfvac9 gdoms 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 chloroplasts and mitochondria support the endosymbiotic0 v6v-0xwamqe tx0av e 6mvqw-0heory?

1.Outline the steps in calculating the magnification of a micrograph. 5f * -myzuia)r8jb2-luv vi;h

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

  The diagram below shows a cell.2r twygtzxqz(v*l.;ai v:iea 2+q /v;


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 produce and release large amounts v/d)te 9pzj tk z,klic68x4 ;tof carbohydrates. Which characteristics would you expect to observe i8)4xp/z9tl6dkj ite cz k;,v tn such cells?

The diagram below shows a cebm)*o 5qtt xu,ll.

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 mitochondrbiz .9sw5mv5sr qjml-0r0wy0 ia and prokaryotes?

  What is the correct magnificatkli 98/ab+anl ion of this image?

  Which characteristic is not true for both mitochondria am.jlr)k83 aa4dzmz r;0 -pns ond chloroplasts?

  The electron micrograph shows a prokaryotic cell, Cyclotellaae.djm,) m;y z litoralis. What is the actu aym;)j ,edzm.al diameter of the cell in this image?

  The electron micrograph shows an animal celmc3xhq if)*g6 g, -bwfl.

  The electron micrograph shows a sarcome1;r x +w-ecbwcre, the smallest functional unit of striated muscle tissue. What is the actual length between the two Z lines? w-+xc;wbec r1

  Which organelle is formed by a vesicle derived from the cell membr oodv90nhj 2r,lk) 7/4dpwo kyane?

  Which organism contains DNA in exactly two d)fw ,(ojvjct xbb98h;ifferent organelles?

1.Outline one way unicellular organisms can carry out each of xg g4-g7 s99yysg af6 wsk3wm/nutrition, movemen496sga/ky3m x gfygsw w-9 g7st and excretion.

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 distinguzq5:zac4 e 9xtd0 l(ayishes fungal hyphae and striated muscle from the two cell types shown in the image( x4ctqaz9a 0:z5l ydes?