Which statement aboufra+)o e7ii :5 u sh2hcw+2gfpt eukaryotic cells is correct?

  Which are common features of bacterial celdb9 8v sdogz(5i f148rbswqj3ls?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is suw e-n(bi na4i.v+pepzg8y) 6hown in the image?

  Which statement(s) about the endosymbiotic theory is tmek12t-yn pt.4q ;/jotac, kifou , j4rue?
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 population oyz7w 90+loe m(dmx 7yef celwzym77ld 0 eyo9 +(mexls?

  These photographs show the s 29dmcgya//qk ame section of a human retina. What is the reason for the difference between the9/y/ 2 dqckgam two diagrams?

  Paramecium produces enzymes that catalyse different chemical reactions tak/k -z26yns3xkk, zxf ring place in the cytoplasm. What function of life is dekfxs kx- z3zk y,2r/n6monstrated in this situation?

  What do the two labelled organelles have intdvtpa.)/c4 o common?

  Which organelle has a dofru4r 0.7zz j5 klx g+,xpn7bcuble membrane?

  Which row in the table correctly identifiesyue lb0wnl2fam 0k+kb/(l 5x1 structures which are present (✓) or absent (×) in prokaryotic and eukaryotic c12ae 5wnk+/y lm0 u(0bflkl xbells?

  Which structure found in a eukaryote has a doy p/ f+78typmguble 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 ods n9d i hol1.b1, bhe:l.vgc6f 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 apparatus?q.tr 8ybc-m*o

  Which statement(s) about cell s twh y/hpstzz 0 x)((;-sps7xgtructure 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 blood. mb1)1oj7l ea e


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. colio2873faz ls1 tzu +ximh5l-fv 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 ;deug p40l-oaboth eukaryotic and prokaryotic cells?

  Mesophyll cells are found in plants. Pla;(qvpo 5mx *yndg q0fi;h5x z/nt cells have unique characteristics that distingq;;hoq zg(*i 5nxp/5y fdmvx0uish 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 le3 c6 yu,/raeq8yu-no rf3f5 fxaf.



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 and chromoso g;n4o8 w64xaags1ahhmes of bacterial cells?

  Cyanobacteria are prokaryotes that ry(iu2oz m(bfnr.7.e can perform photosynthesis. Which structural feature is cim n ru.2z(7bf.y oe(rommon to both cyanobacteria and plant cells?

  Which statement provides evidence for the endosymbiotic th968 f; bmapji6xoetda v)r,.i o+e 7azeory?

  Which part of the cell is labelled with the letter P?;dfle/d+b3i( 6qm/ q ijm3(t3vcydax

  What feature of chloroplasts provides evidence fci,32 xk4x nbny +f7mcor the endosymbiotic theory?

  The micrograph shows an image vrpgj;m8);x5t akn w5mu: lcnz08qo 0of 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 a cell of the bacteri,f+v*, dtch,ydg rnnl;e 3y6 num Vibrio cholerae. Which of the labelled structures maintains the cell’s shape and protects tn6d +gl3*f hynn v, cr,tde;y,he cell from lysing during osmosis?

  Which process is most likely responsible for the origijwv 52i: 6q zpybz)lf2n of mitochondria as a eukarlf jq 6:zvwzpy5 2)2ibyotic cell organelle?

  Which organelle is the site s fgsn w-2zy,82l-sxh of protein synthesis?

The diagram below shows a cyanobacterium, Synechococcus elol nz7t;)zc44 8oouq vsngatus.

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 organ,b+qhuga75 u1xn x(ni8ywm5melle visible in the figure below whose structure provides evb u ,557x wan(qiyxmu n1gm+h8idence 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 organismw3y7 q77j ocochj2qt9s are correct?

Below is a diagram of a motor neur/-jzb+miy.lpy2 qp ump:)/7ghl m 3 ixon. Neurons are the longest cells in the human bp7+zi p/hyyu m b3)qm.jp2xg-/lm:ilody.



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

2.Explain how life functions are performed by Paramecium.

  The following electron micrograph sy-ul7/nt: rh;zynf5 slf k+a(h4r gf.xums 04hows part of an exocrine pancreas cell. Which of the labelled structures is responsible for the production of vesigfz4shhx :lf/ ayr;nly+- fm( 4 7sk5u.0ut nrcles for exocytosis?

All organisms contain ;t556:ql w 6hbfsqzamgenetic material. The type, quantity and location of genetic material differ between kingdoms and s5sa5qzt ;:lb mfw6qh6pecies.

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 endosymbiotic ncv, +.bjhw+ntheor+nn whcj,+.b vy?

1.Outline the steps in calculating the magnification3fk)5l i cmh)n 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 cm3,aup )f 7xu7x7s)klrcz1l v,dlae) ell.


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 releaseu1 p7i4/ * d)g(cnsylyw6qqkj large amounts of carbohydrates. Which characteristics would you expect to observe in such cqlgwn7ki*d/cy )1u q j64py(sells?

The diagram below show20h0l0j zka1ky) qss kefyu/9s 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 to both mitos6c f8zy (m:(gakgjs 6chondria and prokaryotes?

  What is the correct magnification of this ima i/ph;ln3wiclq)6df (ge?

  Which characteristic is not true for both mitochondri lfqv3ithr; dj 1g( 96jebo9z4a and chloroplasts?

  The electron micrograph shows a prokaryotic cell, Cyclotella litoralis.uv23,0-h- eahf3 t0nav kjbje What is the actual -0t j-unh 30he3akjva2e,vbfdiameter of the cell in this image?

  The electron micrograph shows an animal cntaz25 0 mnbq6ell.

  The electron micrograph shows a sarcomere, the smallest func-+m27o)eouj yoewjz )a2 m sk2yrq(j. tional unit of striated muscle tissue. Whee2ms)kzmy- o7 o2oju+ y) q.ajrw( j2at is the actual length between the two Z lines?

  Which organelle is formed by a vesiclebdj3u +x6o5 mso**wts derived from the cell membrane?

  Which organism contains DNA in exacao:l;o tuj3d88rv2di(x+ e xltly two different organelles?

1.Outline one way unicellular organisms can carry out each of nutrition, mo4)idqdp x2r0a7 zgm+s4 fmrq-vement and excret 0arfdz24g+s m qrq4pd-x )7miion.

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 0e ,wzx(.qddjfungal hyphae and striated muscle from the two cell types shown in the image (0x, jqe.ddzws?