Which statement about eukaryotic cells isgqsn ,z* 0;iq8eboq.hn3 v yz* correct?

  Which are common features l;gkb rbfg3 .g4y9cq )of bacterial cells?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is shown in the imagzs4;8y0cce1zrw r ; sge?

  Which statement(s) about n: dw6(+gaxfg1ha .zcthe 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 the samzx ryd7me(c,:7;m pc pe population of cellpc cmrxe:;, pzm(d7y7s?

  These photographs show thvrus;k(8u* v ue same section of a human retina. What is the reason for the difference bev8 r;uskv*u( utween the two diagrams?

  Paramecium produces ei osa+ ;8n) 4,u;1xyynlmb tv0acxp 0xnzymes that catalyse different chemical reactions taking place in the cytoplasm. What functatmva io0;+p1x x4 xny;uy0bn,) s8lcion of life is demonstrated in this situation?

  What do the two labelled organelles have in common?miprmqv 8 3w-2

  Which organelle has a doubly*zqcp()zs aq k;1s *te membrane?

  Which row in the table correctly identifies structures which are present (✓)7tgz c*c*:nyn or absent c:*znync g t7*(×) in prokaryotic and eukaryotic cells?

  Which structure found in a eukaryj a p..qk7 x19 9jmo/imkdeb 7editd()ote 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 true about the structure of cells? 1 xp)(csxnzcy(emqg3de,9:cxb u/c5
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 n49*nxl8 wokff62c yo apparatus?

  Which statement(s) about cell structure is/are not tru ;tqf p)-jh .whxlj3 iqsl-9g4e?

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 * , bn oomz2z5nmysqr9b(47wy 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 cellwp5f6j wp oz-2sm-vs0 s.


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(9g.zxdftm fdy(ekyw/ v 5geukaryotic and prokaryotic cells?

  Mesophyll cells are found in plants. Plant cells have unique characteristicqrwg r8j;v )g5s that distinguish them from anyg jrwr;85v) qg 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 transve8xx*tn3 l fqh1rse 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 *;f8jr p of0k 5rygx5sand chromosomes of bacterial cells?

  Cyanobacteria are prokaryotes that3tvc fb: u,a )q7kprk6- uc3zu can perform photosynthesis. Which structural feature is common to both cyanobacteria and plantz tfc:a bv)7,r3pkucq -6uku3 cells?

  Which statement provides evidence for 3f9; z4fyb5zqtr.qxqjfoo 28the endosymbiotic theory?

  Which part of the celmp+x( hye7v,f)bb( w pl is labelled with the letter P?

  What feature of chloroplasts provides evidence for the endosymbiotij -9k *wqyah/zs)o rkx hes,0,c theory?

  The micrograph shows an image of a plant cell taken with a light microscrp; r4s,u p2zh0jwl1g ope.

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 Vibrqszy*7db4u(-(yyxx m io cholerae. Which of the labelled structures maintains the cell’s shape and protects the cell from lysing d*my7xy b-d(u (yzxqs 4uring osmosis?

  Which process is most likely responsibls 8;dierop5p+uf lj1rb*xl -9e for the origin of mitochondria as a eukaryotic cel rjboxulf+*pd9 s1 ;pir-85 ell organelle?

  Which organelle is the site of protein synth-rico; 95*9yhsgu x anesis?

The diagram below shows a cyanobacterium,07duwl *a;*rxv; hcgs 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 fiut:s wu :,f (g0pzwy-f -ynz +tkdvi/4gure below whose structure provides evidenctz(giu-n/pzu4k0dyvt:fw f s - y:+, we 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 unicanm j 5ulta*;; id8b9lqdi+x, ellular and multicellular organisms are correct?

Below is a diagram of a motor neuron. Neurons are the longe0fa:bfo +,lnk st cells in the human body. :l, n o+f0fbak



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 8:tv6 sg b1sxxan exocrine pancreas cell. Which of the la g8s1xbvt s:x6belled structures is responsible for the production of vesicles for exocytosis?

All organisms contain genetic material. The type, quantity and ltketu1eki7 a9 8a +jh9;(doohij-b2x ocation of genetic material differ between kingd8a(k e;x tu-j29 jh7 +ko9heaiiodtb1oms 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 chloroplav3x+u:.3 w7gysenjon sts and mitochondria support the endosymbiotic theory?n37o u3nw+gesxy: j .v

1.Outline the steps in calculating the magnification of a microrf9xi/*v)w t118 bisl,sny ov graph.

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

  The diagram below shows a cel;fx1 jglr 2ll4l.


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 re-(/kjqad0 7no ui dmwime)zsv;;w :,clease large amounts of carbohydrates. Which characteristk-mn0wud; ievd q)w is /7mj, ;:(ozcaics would you expect to observe in such cells?

The diagram below shows a ce.z2il1a7 8rmrnpf q/ all.

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 mitochondria and prokaryotedj 9atnf2 r*m8ntwu31s?

  What is the correct magnig/xrur mv hfgf( 4* *458hipsffication of this image?

  Which characteristic is not true forvzcj7 )l;0awav;3r 4em lt;d i both mitochondria and chloroplasts?

  The electron micrograph-75vyq 4o s1dxomfl1 h shows a prokaryotic cell, Cyclotella litoralis. What is the actual diameter of thef1 1qyxl54od oms-v7h cell in this image?

  The electron micrograph shows an animalj, bpur1rue)jyazu 4f23 c ;4z cell.

  The electron micrograph shows a sarcomere, the smallest functional unit )+* 2rgbp,pr2e;/nnq cfoylx of striated muscle tissue. What is the actual length beyg,foqc*rxbn)n;l2 e p 2 r/+ptween the two Z lines?

  Which organelle is formed by a vesicle derived from thed qavu.-ba fq2 yuqk/2 g50i)hk 5(ltz cell membrane?

  Which organism contains DNA in exac4-u c+9vizoeqtly two different organelles?

1.Outline one way unicellular organisms can carry out e,pr/p;b: ceusach of nutrition, movement and excretion. /rs; ucpebp: ,

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 hypthv+.x.t q2+njv y0kshae and striated muscle from the two cell types s+2kqty .v +sxtnjvh.0hown in the images?