Which statement about ja;jn: db46z beukaryotic cells is correct?

  Which are common features of bacterial cewmn jxn3 7m ;th+1j6pblls?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is shown in the ima67gdbo,z.jq * 5c sixtge?

  Which statement(s) about the endosymbiotic the,gcyblp pg15b 810ow ncqg)3 kory 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 th bal) t lo0uto-9a8 oipws:)q-3f-hfbe same population of o0s- ou38)fa-bf9 pwtl:lbao) h-tiq cells?

  These photographs show the samewwz j we3x8gb2) p(1qg section of a human retina. What is the reason for the diffe1x2zqww)egjwb gp8( 3 rence between the two diagrams?

  Paramecium produces enzymes that catalyi:m- +o 9i tfuqeq:h8sse different chemical reactions taking place in the cytoplasm. Whqtf -: hou:sie+q8mi 9at function of life is demonstrated in this situation?

  What do the two labelled orgbjumwu na,f ik-l).1;anelles have in common?

  Which organelle has a double membra .vhla/enxl* ;ne?

  Which row in the table cvg 1 yetza)42horrectly identifies structures which are present (✓) or absent (×) y h a4g)et21zvin prokaryotic and eukaryotic cells?

  Which structure found in a eukaryote has a double membc-mo(rt5 f1 qvrane?

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

  Which of the following s *1c)3(rz 9k9mpgigq yl qy :1sq*eviqtatements 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 a gkqyjq 978;d(su-pxt function of the Golgi apparatus?

  Which statement(s) az7 gip6vvn;tow wf-jv* o 0+4about 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 nkl(u ab5;b;u1 j b)nhof 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 ce o f0ia53b9bhn xf76pzohp(rl) gxg5,lls.


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 prokary0i zxs* s88k )szeo h))4qubblotic cells?

  Mesophyll cells are found in plants. Plant cells have unique characteristics thhw ;pu3b3x7hxlbd, p*at distinguish the 3 7ph3p;*lx, uxhwbbdm 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 throuysx lmfq al wa)x*3155gh 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 y ymimq f*1(+ytcr n 6,rj5ef0DNA and chromosomes of bacterial cells?

  Cyanobacteria are prokaryotes that can perform photosynn(jy 4vj5k4dbr6sgw4 thesis. Which structural feature is common to both cyanoba44ksjy d5(j rw4nb6g vcteria and plant cells?

  Which statement provides evidenc4rm9dmo o2 x,9vn+6usoq/sv z e for the endosymbiotic theory?

  Which part of the cell is labellt0qm e+sa7bw2g4ff 9sr m8sq gd.pk ,(ed with the letter P?

  What feature of chloroplasts provides evidence for the enddlq a9q .8a/d o5z6aenosymbiotic theory?

  The micrograph shows anbf 5j,0/h3s*ei picis image of a plant cell 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 af945b bin2csjn60e tognchm 33k ;s5a cell of the bacterium Vibrio cholerae. Which of the labelled structures maintains the cell’s shape and5 sfbk40t n5bs3e cjic 6nah;o39m2gn protects the cell from lysing during osmosis?

  Which process is most likely responfk um cm,(.q9jsible for the origin of mitochondria as a eukaryotic cell organelle?,qmufm(.k 9c j

  Which organelle is the glm zuq-9w9l(1*ny5g tjb rh5site of protein synthesis?

The diagram below show ia-a fr swd)) y+j2obu/ao88fs a 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 organell)y(cz,knj/vud c0ddk9 v)wnyk +y( 7h e visible in the figure below whose structure provides evidence for the endosymbio /n dh)0ykkd(, 7wv)kcydv+cj9z n( yutic 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 c+ p,twq2z*n t1 ddi,evorrect?

Below is a diagram of a motor neuron. Neuronspyx0af;p(w5w2uun.5ld2 0ba 8kh xji are the longest cells in the human body. 2bd jpf0 w(hapu.2y k 8alxnxuiw;5 05



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

2.Explain how life functions are performed by Paramecium.

  The following electron micrographm,1czke0t4 ww shows part of an exocrine pancreas cell. Which of the labelled structures 4ke1 z c0,mtwwis responsible for the production of vesicles for exocytosis?

All organisms contai( f2.m ((rylaz*w8goo 2uvuyj n genetic material. The type, quantity and location of genetic material differ between kin u8rymjo .lfog(2z ya(u 2(vw*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 mitochon: vh :0paq4m9 ejvtrl4dria support the endosymbiotic themv9 l 0p4q4:a:jtvrheory?

1.Outline the steps in calculating the magnification of a micrograph.gm12x0 jcxb:x98sut u

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

  The diagram below shows a 4eq c/ar y+*lycell.


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 carbohydratevqx -c* gt.-ujelim-* s. Which characteristics would you expect to v*-gm-jilcqx ue-t .*observe in such cells?

The diagram below shows a cell.hqkk cs38 f1s7

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 ,r obhsvd13pvl*f .p 5hp:ea) both mitochondria and prokaryotes?

  What is the correct mamxgzpmg:p)k:k :afs6 4i +sy/gnification of this image?

  Which characteristic is not true for bo/b;xvr iw15 kem -9oneth mitochondria and chloroplasts?

  The electron micrograph shows a prokaryotic cell, Cyclotella w8fuj./ x9zwmp)l:yjlitoralis. What is the actual diamet9jpuyzlj8 xw. m:)wf/er of the cell in this image?

  The electron micrograph shows an animalm.c lzkgtjehd/ 4 ;.6g cell.

  The electron micrograph shows a sarcomere4 9u h )a661hpwzocu6 :(zzwmb9tohl(wnp7 ae, the smallest functional unit of striated muscle tissue. What is the actual length between the two Z lphpuwzh (9b u on9o4:z( hl16zamw6atc6 we7) ines?

  Which organelle is formed by a vesicle derived from the cell membran )0;zvq6ajic,tooliz23k i k ,e?

  Which organism contains DNA in exactly two different organ g3zm3xtde5mnfxs - ;,elles?

1.Outline one way unicellular orga 6a-pp))bpbhs7ip aw ;46tndvnisms can carry out each of nutrition, movement and excre)t6 v7)s-pp ;hp4a bwdp inb6ation.

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 distinguishez ,)cz h7i tv.fhtp13ffjwy8*s fungal hyphae and striated muscle from the two cell types shown in thzft tzhiv,f1 .*fy)jw8c7h 3pe images?