Which statement about ek+xr6z+gkplq5 ugw-4ukaryotic cells is correct?

  Which are common feature85y ednunt p.+xr1t6 ss of bacterial cells?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is sh76rsvr3srnm7 own in the image?

  Which statement(s) about thepesi4, x p0l-b 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 , m-kaaraz9f5t)v i+sh2my o2from the same population of cellsy22vk irta mas )5-hf9a+mzo ,?

  These photographs show the same section of a human retina. Wh *wvzs n,1r+wng f5ic4at is the reason for the difference b+54gsif1ww rnn ,c* vzetween the two diagrams?

  Paramecium produces enzymes that catalyse different chemical reactions r7o;)nw1pz +rmclu f(taking place in the cytoplas o1;uplf7 +)cr (mzwrnm. What function of life is demonstrated in this situation?

  What do the two labelled organelles msmd.0lwv 6- shave in common?

  Which organelle has a double membrane?(ke nk5*0v sp tdm +uvwon+5w8

  Which row in the table nbklc;+w; e9*d 5q abt i97jdbcorrectly identifies structures which are present (✓) or absent (×) in prokn 9*e;b9qw5id j +ctda kb;lb7aryotic and eukaryotic cells?

  Which structure found in a eukaryote has a double membra js8mq ucnka- b k-ir(o14y.p8ne?

  
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 true about ubuq/5- jun9rxg 9(gb 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 appam pxy47 .0n(ew:u k cr)bpp4w/hzpbt6ratus?

  Which statement(s) about cell str8pii2:g vg 5zimhq9 ;pucture 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 of bl,(6+t 4v mvy:dp2rnpcp8c j ngv0zp o*ood.


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 piwklmgi.io(0uh5,5 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 both 0.fnykwkhx,+ o r;u4w4-cepe eukaryotic and prokaryotic cells?

  Mesophyll cells are found in plants. Plant cells have unique characterf( l0cuuhe,mt4k 36ok istics that distinguish them from atmu 4klk3e(f6u, 0hoc ny 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 djs7m ,fm3 -9ftib;r2u n:(hbxaz 1vqleaf.



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 describe b:j3tpx -fo1l/mr m-es the DNA and chromosomes of bacterial cells?

  Cyanobacteria are prokaryotes that can perform photosyon40 cklcaj :8hj)*au nthesis. Which structural feature is common to bot jh*j0cnu: la4a)ock8h cyanobacteria and plant cells?

  Which statement provides evidence,cv l:oawsk5vq6jz 0/ for the endosymbiotic theory?

  Which part of the cell is labelled wi9qlxd: 5o;avu)zb.ll(9 kdgq th the letter P?

  What feature of chloroplasts provides evidence for the endosymbiotic t ;0-qi:nyq*vjs4isr lheory?

  The micrograph shows an image of a plant cell taken with a light microjo/)-oy dn3 rzc-(n doscope.

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 a( 4fnyir:x avv+ g3w(f6h0jeVibrio cholerae. Which of the labelled structures maintains the cell’s shape and protects the cell fro iw4ary gjv6(a3 hnfv:(+f0xem lysing during osmosis?

  Which process is most likely ree/e0rk(pwq+ (g)ix:i j8o nh xsponsible for the origin of mitochondria as a eukaryotic cell ori0r/8g)jeix:k( +o(ex hwpn q ganelle?

  Which organelle is the sit4v,ji)zl tnp103 t 6ndjj:nkp*.qr wxe of protein synthesis?

The diagram below shows a cyanobacterium, Synechococcus elotx/tmn879: k ulyo0 sxngatus.

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 visiblefu-il;5*rq qhz b)9 sn in the figure below whose structure provides eviden-h 5inl); *bq9sqrzfuce 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 organis pxbvl4,7u c :asg9hifkep 23,ms are correct?

Below is a diagram of a motor neuron. Neurons are the longest cells in thm2-sya* ( nhmxe human nxh-2y ms(* ambody.



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 pan8e x qu)2c): z9h hbdj,d2lrbicreas cell. Which of the labelled structures is recz d:2bbh)j2)q r, el9h8xidusponsible for the production of vesicles for exocytosis?

All organisms contain genetic material. The type, quantity anbllgah11bl,kow n;g8ysgz5 q;7 /l z1d location of genetic matekb75;sg 1llwg / 1;yanqzhbgz1l,8l orial differ between kingdoms 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 end -2vo k ew3wxhatj*col---dx(osymbiotic theh*v-(-xlwdjoko tx23 ceaw --ory?

1.Outline the steps in calculating the magnification of a 9xc ie-0oxvl5 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 ce fqlu3 vexk. c/v.8u;vll.


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 carv+7+qhqi8 i qa xi/ ,ye26.dvicj5hukbohydrates. Which characteristics would you expect6. edai/u+5c,+kq iv 7jqyvh ihqi 8x2 to observe in such cells?

The diagram below shows )-g tljxpz- wa8x6z l;a cell.

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 to8bo j hz6wctck3q90 s+d :(bz+l z8wle both mitochondria and prokaryotes?

  What is the correct magnification o4np x03 oixwr:f this image?

  Which characteristic is not true for both05mvpa j-pw 6e mitochondria and chloroplasts?

  The electron micrograph shows a prokaryotic cell, Cyclotella3 pogo9x4e w0u *djjuj./7d vayq 8;ik litoralis. What is tu q4o9dkgy ;euaw jv0i.jx j/73do*p 8he actual diameter of the cell in this image?

  The electron micrograph shows an5 +kxu mtkr k eki4g:0/z.kz6t animal cell.

  The electron micrograph shows a sarcomere, theus27qs+gy,my p m (.nhyl)t n: smallest functional unit of striated musclethq yy7lsn(.,+2sn gm uy:)pm tissue. What is the actual length between the two Z lines?

  Which organelle is formed by a vesicle derived from the cell memxzx;d*ibg 8 ;rbrane?

  Which organism contains DNA in exactly two differrz5e kzl4a 6-zn+h v:cent organelles?

1.Outline one way unicellular organisms can carry out each of nh 1w 3 bds9kt8l5ivh-kutrition, movement and exc8h 9b3li kkdvhs-5tw1retion.

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 fun7d*-kstg9u 8 1 fhjddolik w5-gal hyphae and striated muscle from the two cell types shown in the ima9td85- ijg1d7dul o -skkw* fhges?