Which statement about eukaryotic jp v6+et2yx n1cells is correct?

  Which are common features of ba+fuvn j3t+e; x/htyfm8i*pp 0cterial cells?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is shown in the imuhkdz.ie)07p5h+gu jl w8 1fm age?

  Which statement(s) about the endosymbiotic 1ob,, k nu3oxotheory 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 frk/)l +9ag cmre1u8 nkrom the same population o8+n )/kr rgc1u mae9klf cells?

  These photographs show the same section of a human retina. Wh x5oc5wwl.s:c lmyf0 0at is the reason for the differey.w0f5wx5 mlol0scc : nce between the two diagrams?

  Paramecium produces enzymes that +pph 9kmxg9b1catalyse different chemical reactions taking place in the cytoplasm. What functipmx +k19pgb9hon of life is demonstrated in this situation?

  What do the two labelled organelles hav7:qp) mgdbge *i2dr1re in common?

  Which organelle has a double membrx;6pxl o2ja9 xane?

  Which row in the table correctly identifies structures which are present (✓) or .o,rskln oe ,/absent (×) in /l,r, k.snoeo prokaryotic and eukaryotic cells?

  Which structure found i617 spvy 2dx)zs2bwejn 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 are true about the struc-en +5n ab/zcgture 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 no,m/tl3 4/tpdw * qrownt a function of the Golgi apparatus?

  Which statement(s) about cell structure 9ev :cyyys:k7 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. 9i+ 8peyn th8:j 3kar6;w xb6frl7ali


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+k1.6u s cikdulls.


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 foundejpy8 77ag4 ub in both eukaryotic and prokaryotic cells?

  Mesophyll cells are found in plants. Plant cells have unique (sl ax04o9 nuwcharacteristics that distinguish them frlu 4ow (x09nasom 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 sec(b o9fz+) tw5a 26gk )fam 3hawx,yspytion 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 and chromosomfha6 pj 45nyv3 gb7cy in.q6*jes of bacterial cells?

  Cyanobacteria are prokaryotes that can perform photosynthesis. Which structural epp/fa(2/wwk: ye8d j 2a,wzqi vv.z/feature is common to both cya:w8/aiwaz/p2e,j2 w/z vvqyk ed( p.fnobacteria and plant cells?

  Which statement provides evidence for the endovdqop,eah4)u ;wvh);symbiotic theory?

  Which part of the cell is labelled with the le:;xg, he z9+ul sg6rlitter P?

  What feature of chloroplasts provides evidence fo7i u*as d lp5mzahh4aut3-t 59r the endosymbiotic theory?

  The micrograph shows an image of a plant cell taken with a lig zad,3xdvo 2g+2pu+ahht 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 bac0dwaw2 idu-i* nk:cbs0r;+zfterium Vibrio cholerae. Which of the labelled strrkw b d2iwnf; 0 az:*0di-c+usuctures maintains the cell’s shape and protects the cell from lysing during osmosis?

  Which process is most likely responsible for the origin of mitoch(fiq 1jt3)sl8binw: uondria as a eukaryotic cell organelleunijsw8)3: 1l t bfqi(?

  Which organelle is the site of pro5n3tx7ul5 fboxg o3b 1tein synthesis?

The diagram below shows a cyanobacterium, Synechococcus elongatus.9y: s 1vxdvb1slwh:; bhj+ 3qu

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 visibl(rcjf xtxt5g vku)ab3g7v 2dhp1(:y8 e in the figure below whose structure provides evidence for the endosymbiotic theory. j :d yrt 1vca2) hfxv5pg8x(3(gbutk 7
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 unicelllwbu)n u e ajx(d,*39dular and multicellular organisms are correct?

Below is a diagram of a motor neuron. Neurons are j.6m uzb d 2ue;kav5q ur+7h+kthe longest cells in the human boeju ; +z 52.7+u6kaubqhvmdrkdy.



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

2.Explain how life functions are performed by Paramecium.

  The following electron microgra 6 92tt49wuwvtsndsajd2;w/mt lkj;5y g 6v+rph shows part of an exocrine pancreas cell. Which of the labelled structures is responsible for the production ogkw+92j wvd tmawy/tv6n r;s6 49lu2t5 t;sdjf vesicles for exocytosis?

All organisms contain genetic material. Thei +8;- bbwwpxq type, quantity and location of genetic material differ be; +w qp-bx8iwbtween 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 chloropla 48;rx fuf jjbmt2 hauj-,q:4,t; jmossts and mitochondria support the endosymbiotic theory2-4jb r 4xh;oa, f m,fjuj:tq ;8jmtus?

1.Outline the steps in calculating the magnifib3bo qpe/eb+zpf 1m 7.n7ttq+cation 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 shn k7p j5kr;,aioxk9r7ows a cell.


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 releaseh4dn 6 3 .osiol.fxzx( large amounts of carbohydrates. Whicf4 xo(.i n63zl soxd.hh characteristics would you expect to observe in such cells?

The diagram below shows a cell. 0h9 akycmc r91k)) zx 63(b mfczvmtj5

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 bf2jv9 dzej )xtkr7a6 :06wi.c0w divloth mitochondria and prokaryotes?

  What is the correct magnification of thtek n01slja-y fx+h1e5b :qs9 is image?

  Which characteristic is2b9pr7 qcut r9 not true for both mitochondria and chloroplasts?

  The electron micrograph shows a5 +l j6pyux(rmg 5zul0*bd mw7 prokaryotic cell, Cyclotella litoralis. What is the actual diameter of the cell in this up67bj*rx(u0+l mgzlw d55ymimage?

  The electron micrograph shows an animal cxe0ic7k( 4zx+w6 hebzell.

  The electron micrograph shows a sarcomere, the small rro4fcr vo9; 3r/:qx60ocit1rv qy( nest functional unit of striated muscle tissue. What isc r6:qr3 1rovr(4c yxi;9oov0/f qrnt the actual length between the two Z lines?

  Which organelle is formi5cpx 6i 41yaned by a vesicle derived from the cell membrane?

  Which organism contains DNA in exactly tw .z;c/nze n70n3e rcsmo different organelles?

1.Outline one way unicellular organisms can carry out q noih9-( k-pheach of nutrition, movement ak-in hp-h9q( ond excretion.

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 striated muscle lsogg2jnm4 9 -2piae; from the two cell types shown ipeg ins 4;mo -ajl2g29n the images?