Which statement about eukaryotic cells is co9pbu*c)av9hbk/zp /s. ti- tgrrect?

  Which are common features of bacterial cells? ly7c4. ,xkpbigtk((ib5j5cem q :lq(
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is shown in the image? xci7 b 5;c u4wetfs,s2

  Which statement(s) about the endosymbiotic theory is 765tolqsc 7hlkj,n4s 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 the same populationd f*j6zx4z7 iq of cells?qdx4z 6zj i7f*

  These photographs show the same section of a huma imqiyewlft o+6 fqfq0)6x3 /5n retina. What is the reason for the difference between the/ 36 oqtm+)xi0fiqwf yfelq5 6 two diagrams?

  Paramecium produces enzymes that catalyse different chemical reaction57cg7 gvb,sccd s jmh( 1+its*s taking place in the cytoplasm. What function of life is demog t +cm(7gcscsj5s h,1d* iv7bnstrated in this situation?

  What do the two labelled w:b.dfbs* rmz,1 7ev zbl/f/borganelles have in common?

  Which organelle has a double membcm8drs )9sr wwn*wh/-rane?

  Which row in the table correctly identifies s22,w qnu*ezhnid0j: xtructures which are present (✓) or absent (×) in *dj,hxn ie :nu0w2z2qprokaryotic and eukaryotic cells?

  Which structure found in a eukar,;w0 r- vqpjabml 9-u8p6q xxjyote 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 statements are true1a mdw1 z zce+x2lsn1ovy8/*h 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 a function of the Golgi appar6gied/bg,pia-: 7x )fu u*v cgatus?

  Which statement(s) about cell structure ,vr,q (ltztqi*nhfkj /:t b99 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 micr 4nju3ikcs-s8ograph 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. coli cells.s- jlh hps th3.u:j21ztvg a)+


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 eukaryotic6d 7 8x4yzpj fv(xd1rb and prokaryotic cells?

  Mesophyll cells are found in plants. Plant cells have d/( 1t5 aoenuu1s5p fl4e)zcx unique characteristics that disu5xfo 11et4 zpc5nle )ad/(us tinguish 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 through a wzjr*8bx r*3zleaf.



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 tvtpa +zn32gxhps9p xv md68a *,e(r+che DNA and chromosomes of bacterial cells?

  Cyanobacteria are prokaryotes that can perform photosynthesis.lb,/; w b/pixf Which structural feature is common to both cyanobacteria aiwfl/ ,; bxb/pnd plant cells?

  Which statement provides evidu9v*p1c up)laj;*k hfence for the endosymbiotic theory?

  Which part of the cel kom82ro)u0 55fosbfk l is labelled with the letter P?

  What feature of chloroplasts provides evidence for the 1tj1e,x ena5h endosymbiotic theory?

  The micrograph shows an image of a plant cell taken with a light microscosv3yq2-oc l)v pe.

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 belowj i-7hd sy.ay+ shows a cell of the bacterium Vibrio cholerae. Which of the labelled structures maintains the cell’s shape and protects the cell from lysing during osmo-+d 7ys .aiyhjsis?

  Which process is most likely responsible fora5xu3a2 b40e v xqfm9k the origin of mitochondria as a eukaryotic cell organ kam9e0bxfq 2x4u 53avelle?

  Which organelle is the sit kd.rbwfo)* 2de of protein synthesis?

The diagram below shows a ;u q*vsgg6w,k cyanobacterium, 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 organelle visible in the jy xsl2pdtf c/ evj:+e;8wpv(rx-;q 3figure below whose structure provides evidence for the endosymbio/eptvy vs d xpq(f23xj;;-:rwc j8e+ltic 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 corr8xnkk6p-:c:bf d 3 cs--wka*9 qgcmyuect?

Below is a diagram of a motor neuron. Neurons are the longest cel (vccj*lrz0,nls in the human body. ,r(0l n vjczc*



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

2.Explain how life functions are performed by Paramecium.

  The following electron micrograph shows part of an exocrine pancreas cel/ga u41pe c(d9cin:wf l. Which of the labellecni/uec9w (ga4 p1:fdd structures is responsible for the production of vesicles for exocytosis?

All organisms containi 1p-vmu0 vyu. genetic material. The type, quantity and location of genetic material differ between kyuvuv1 mi0.p-ingdoms 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 chloro .yvaa) xt*,lm 2 w3yunwh-*zoplasts and mitochondria support the endosymbiotic theo* oy)*n3wyxvhw. ztl uaam, -2ry?

1.Outline the steps in calculating the magnificatioj0qm ,m9s4y 9 xqxb4wkn of 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 len(4e* d9 7ufdl,elgcell.


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 of carbohydratesi +c dzftv80rbg*6r,/i l p)um. Which characteristics woup,i*d+m lc0 f/vz t) 6urr8gibld you expect to observe in such cells?

The diagram below shows a celzx,8q, mfly ,a3sznf .x:fg 1bl.

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 appliebex;pf+s8z/tz j 1j;g m1i1 zhs to both mitochondria and prokaryotes?

  What is the correct magnification of this imagey *i5/jag(uew?

  Which characteristic s 6xt ik/ 0f:hw. ts6r*lczw7nis not true for both mitochondria and chloroplasts?

  The electron micrograph shows a prokaryotic cell, Cyclotella litoralis. Wh ( b0j3yu dgckac,(v ibq:uv8+at is the j:ki0cdu3qbgb 8u (v+,v (yca actual diameter of the cell in this image?

  The electron micrograph shows an awr.g3w 1y8blk 8f 8fbtnimal cell.

  The electron micrograph shows a sarcomere, the smallest functional u azkm1 ,xo7(ucnit of striated muscle tissue. Wh,( cu1axkm7o zat is the actual length between the two Z lines?

  Which organelle is formed by a vesicle derived from the cell membrane0vuj0k.vca2k*xf yq z:s8jw*?

  Which organism contains DNA in exactly two different ora uo: 2 :k )er5d/uh4:yvd8dsul6hu vbganelles?

1.Outline one way unicellular organisms can carry out each of nutrition, moveme 6h/7fgmj*( zyhn xjb/nt6/mb /(hjf*nxh yzj 7g 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 distinguishes fungal hyphae and striated muscle from the two ck1zpi)fbi yx 7q16u9kell types shoki7ubkqxi1y19 6)pzfwn in the images?