Which statement about eukaryotic cells is corre m 11cdvvo;:5 ubymin8ct?

  Which are common features of bacterial cez nings ck5 w38vx6qqu)+)v .clls?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is shown inu - dyi,i3t vv,9uk9jv the image?

  Which statement(s) ab:; .+r iugh po,wipn(iout the 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 samejd l)e n .+cut2mj9s;r population on;+l2ud)9jr tc j e.msf cells?

  These photographs show the same section of a human retinm bk1cd494wgq gt w0x9a. What is the reason for the difference between the gk0 g49mtwx cd b91w4qtwo diagrams?

  Paramecium produces enzymes that catamio:/0c+nvc az xig 8sd1h(*klyse different chemical reactions taking place in the cytoplasm. What function ofgzsm 8*(vk0+n:ach1x id/oc i life is demonstrated in this situation?

  What do the two labelled organelld finq:li8v3*3cfn,s . x.c;; kjoyg kes have in common?

  Which organelle has fld1js7 uxjs0a.o5 4jf3zi (aa double membrane?

  Which row in the table correctly identifies structures which j kecot-t 6u/(are present (✓) or absent (×) in prokaryotic and eukt/k6t- e(u cojaryotic cells?

  Which structure found in a eukaryote has a double7m vys(b4et787alm bhock 2h; membrane?

  
Chlorella contains the molecule chlorophyll which makes it to appear green. What life function is exhibited in this example?

  Which of the following sta6 27de3nurlrz0 cz/ohh :)gl+d edb)c tements are 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 functionub .zn,z r9w2ly(b8li of the Golgi apparatus?

  Which statement(s) about cell structure is/are not tr 5clp8 3p+vrqdue?

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 b9,:sxu(wm q tzlood.


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 belowuw vt.w zvx+m3*;gzw3 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 eukaryotic and prokaryotk7 vzm/n (h;cwic cells?

  Mesophyll cells are found in plants.osdhru -1x,r 3dn,pngq7;- ty:-gpbz Plant cells have unique characteristics that distinguish them from any other czn-o1rh- d ,rppuqs7xndgb;- , yt3: gell type.

In the micrograph above, one of the cell parts is labelled X. What is the name of this structure?

  The micrograph shows a transversepdz .7dw1p y3v 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 dr ,ijfx-.k g)hk 2qxt o97pda9escribes the DNA and chromosomes of bacterial cells?

  Cyanobacteria are prokaryotes th 218.t wmkb u64h;u 7amitrkqrat can perform photosynthesis. Which structural feature is common to both cyanobacteria and plant c2m1bhk; 8i6q u7w4km u.t trraells?

  Which statement provides evidence for the endosymb,+v :vg tgw6u c2 8cy+fx*walyiotic theory?

  Which part of the cellh+hhvt3tt* mrt7 i f3zh hu*55 is labelled with the letter P?

  What feature of chloroplasts provides evidence for the endosymbioxq:0c ra.qoh)(n6 *uj x+v1mq*t igtctic theory?

  The micrograph shows aq)o3 n0 pyusb/ ie)u/rn image 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 of thri r)f atio(0,e bacterium Vibrio cholerae. Which of the labelled structures maintains the cell’s ,)irio(f 0atr shape and protects the cell from lysing during osmosis?

  Which process is most likely responsible for the origin of mitocho gmf.i-l-p7 gqndria as a eukaryotic cell orgam.7-pi q l-gfgnelle?

  Which organelle is the site of prot(p.y fwkhswwexxw x*.)4 i)u9ein synthesis?

The diagram below shows a cyanobacterq7a)/0cca3iyg e naxlv4d 82 tium, 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 organ7szk.zd es,5fo,g6c q)yf2of elle visible in the figure below whose structure provides evidence for thf2 kz osy)g7e.osfz,f5, c q6de 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 un/8pb8vas:v f1 jqj)loicellular and multicellular organisms are correct?

Below is a diagram of a motor neuron. Neurons are the longest cells in theur47 u gk spnc(:o../yi pqwn7 human body. :wu cipn77g4/y k un.r soqp.(



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

2.Explain how life functions are performed by Paramecium.

  The following electron micrograph s;y dg o/y 14z ky-temy4k;cjf7qv:r l1hows part of an exocrine pancreas cell. Which of the labelled structures is responsible for the production of vesicles for exocytosis? je gy1y1cz:yyk/4r lk;fq v; -od4t7m

All organisms contain genetic material. The type, qual+,k*f39b q6 fwr0u*mxhp tqs y)wqy. ntity and location of genetic material differ between kinl)m 3+fr* byk0 s* qhw9fyqw6t.pu,xqgdoms 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 endosymbiotic1sgoj2toy6ea8 tp; i7 theootea7 j; g1s8t6o2p iyry?

1.Outline the steps in cag1y.6mgy;xcmv -9 x znlculating the 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 cellrpf6l/ t8o6fx1v:t a b6hcx z8.


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 carbohydraxbj j8zps :-wp/u.lq .tes. Which characteristics would you p. p-j bsz 8lqj/:wx.uexpect to observe in such cells?

The diagram below shows a celxg 0v+cn624ndedw h(um-j: to l.

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 mitoch5vc7t *i42w ikr10ht f p4dhqlondria and prokaryotes?

  What is the correct magneyqz8c+9 u3dwf 4qixil2, 2h dification of this image?

  Which characteristic is not true for bo7 4h8/e fsbekocqdr03je4 i+nth mitochondria and chloroplasts?

  The electron micrograph shows a prpl1 h:ankkru ;u 6px57 *4)i/lzj njwuokaryotic cell, Cyclotella litoralis. What is the actual w *inl;6)upkz ul5: a/7jj4ukhxnr1 p diameter of the cell in this image?

  The electron micrograph shows an a -uqrvnqo 2y3;nimal cell.

  The electron micrograph shows a sarcomere, the smallest functional unit oei .5nq/gagwa/ s-0tof striated m e0t/aowaiq/g 5-.sg nuscle tissue. What is the actual length between the two Z lines?

  Which organelle is formed by a vesicle derived from themn fn;thr6*t . cell membrane?

  Which organism contains DNA in exactly two d6kuy sch ,(4ffifferent organelles?

1.Outline one way unicellular organisms can carry out each of nutri-+qh:*w ms 2c ibq4 zq-z3:drcm /3 pwklbizp8tion, movement and excresq:cl 4k3bz/* +mwzq i: ic-d8zrm qb php-w23tion.

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 from the two ce96*pfq6wm rn8 tjz9mkll types shown in the n9t 8rw6 k*m6qpf9zmj images?