Which statement about euz 1uw*mi1, 7jjpbz6 mhkaryotic cells is correct?

  Which are common features of bact24:8jm4(x:hy8kmnshd mz 0u9ddfa9we 6b fk serial cells?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is shsx ) -q*oewkw0*i9 *1uq9gva :bczrvnown in the image?

  Which statement(s) about the wve m5rh:dl:l9qg24 gcaka9, 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 same popuft6zq-s om*xqa6 b/9/s whm;qlation of celtq*fb6m -o;s 9xa/q6/w zshqmls?

  These photographs show the same section of a huma4c*wm2;bg 4aw sz ogw 45 jovq9:y1pucn retina. What is the reason for the difference between the m 2wcq4:v5wugaogso1 bjc4;9z4 *wpytwo diagrams?

  Paramecium produces enzymes that catalyse different(f,s.y +ohj8 a4fbkbe chemical reactions taking place in the cytoplasm. What function of life is demonstrated in this situatihs4f+f,bo8 ajk (ey b.on?

  What do the two labelled organelles have in com d /wxwvykibi,z+-e 4x4(b ok,w6x 3uwmon?

  Which organelle has a double+ pmyjo3 /mr,a membrane?

  Which row in the table correctly identifies structures which are present (✓iuovr*c) .v -6g stlw+) or absent (×) in prokaryotic )vov*i grtc lsw6.- +uand eukaryotic cells?

  Which structure foun 2vy+xnjv1 aj5 7a7/o:isg ijad in a eukaryote 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 artc k q17fsur4c-3us fa2wp) 9ie 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 function of thet1 pu; v,(c:t tq+qpjk Golgi apparatus?

  Which statement(s) about cell structure is/are not tr1 7wrp,dqa:mb ue?

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 mq upw.5rg zzl04+ 1aslicrograph 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 belowtfq- t90 bbsi*bmq 1jqd/2nlbc 3ng(6 shows E. coli 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 e:;i0 y0qa zswyukaryotic and prokaryotic cells?

  Mesophyll cells are founny( et s zwha(nd:8,x5d in plants. Plant cells have unique characteristics that d8t: ,nsd5( wny(axzheistinguish 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 throvih: :*/, )fvgm rqnejugh 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 and chromosomes of bacterial cellsui4 eonkb3:). l04lj z k8cclo?

  Cyanobacteria are prokaryotes that can perform phouib*(0ik l0 gatosynthesis. Which structural feature is common to both cyanobacteria and plant*kai0ul i (gb0 cells?

  Which statement provides evidence for the endosymbiotic theory?eno3/ r:b*h)jmhe k9f

  Which part of the cell is labelled with the letter P?9*n zu:z +81ko d.gc zyzmqq*v

  What feature of chloroplasts provides eviden fbnzg+ dwnma63fw6ty0 4 81hiuj13b mce for the endosymbiotic theory?

  The micrograph shows an imagebeg*v /i04ajl+ fd nx; 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 a cell ofzm8:fk glz: ;mnjt 9s. the bacterium Vibrio cholerae. Which of the9 j:zng8z :lk; .smtmf labelled structures maintains the cell’s shape and protects the cell from lysing during osmosis?

  Which process is most likely responsible for 5p+yd dkbjad9f,25 idthe origin of mitochondria as a eukaryotic celdd9dajby + d52,ki pf5l organelle?

  Which organelle is the site of protein sy 2-7/ceyhk *z1vqt jd) brwpm;nthesis?

The diagram below shows a cyanobacterium, gd9 eh hz5.e8rSynechococcus 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 figure below whose structure provides eq0.8nxesk-y;i cb mk (v (.skqmk8 n;xcie0-b yidence 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 unicelz md-k6++7za bzm.rh.w up-x plular and multicellular organisms are correct?

Below is a diagram of a motor neuron. Neurons ar . ix3+c7r cylz94uveze the longest cells in the human bouxc9+zze73 i.ycrlv4 dy.



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

2.Explain how life functions are performed by Paramecium.

  The following electron micrograph/c 6j8e+cehgq shows part of an exocrine pancreas cell. Which of th +q/ch8ec ge6je labelled structures is responsible for the production of vesicles for exocytosis?

All organisms contain gexzf;i9a1c2h: x z4-bmcwp:o unetic material. The type, quantity and location of genetic material differ o :iaf w-9zzhx4;b x:mc21up cbetween 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 endosn.u9 p,gs a1c;, s+kl/if b9 lnlrihczv9* m.symbiotic theora9 sn9cc bhm 9 p. rl,ulgil1,*+f;/i.zvknssy?

1.Outline the steps in calculating t kv vk-s6xrouxd g;:urz7pp: 9 ym6y+6he magnification 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 cell. wm6fg q-n(s5+ 6gx n;:y,.venaqc y jv


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 ycyoly .hxg9s,t45 xg xgg1i 9 tqg;:2and release large amounts of carbohydrates. Which characteristics would you expect to observe: g gtx1ctgg5ghyi92qxy;, 4ly s9 .xo in such cells?

The diagram below sho6wujztz m9fb gx yf.9u26 f0v)ws 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 mitochondria and *g n v(p,go6jthjl y36+mnmo .prokaryotes?

  What is the correct magnification of this image? fv c:4ziqxyxifj 8) )7q5ari6

  Which characteristic is n mrk (kza)wy(5zh,juq9cv o q821a(hqot true for both mitochondria and chloroplasts?

  The electron micrograph shows a prokaryotic cell, Cyclotella .((6plimw/b pik*tff (x :katlitoralis. What is th t:f(xii6kmpft */lkp .a((wb e actual diameter of the cell in this image?

  The electron micrograph mpt,;r )f, khim4))lw.r bpdushows an animal cell.

  The electron micrograph shows a sarcomere, the sm ),,wd rb9tu,ml0onpnw7+z i1vys 2vmallest functional unit of striated muscle tissue. What is nl0ypw, z,9 2suv)n,rim+wbtdv1m7othe actual length between the two Z lines?

  Which organelle is formed by a vesicle derived from the cell membrad gy +x+8:zfsr+z4he7 cyr0 wvne?

  Which organism contains DNA in exactly two different o3rr *s( fb;ossrganelles?

1.Outline one way unicellular organisms can carry out each of .tl c: rwh247acyl p5mq .uo9cnutrition, movement and excretio5 co7cqph.m4 ayw2 t.l 9rc:lun.

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 dcbzb;82c lvea q) k ,d:oow.4striated muscle from the two cell types shown i8ek4a bcz dvb,c;2 wq do)l.o:n the images?