Which statement about eukarqarn0v3; i-rtx 0( wjbyotic cells is correct?

  Which are common features of bbyhb7 jhb u3*t23aw1xbhj63 uacterial cells?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is shown in t y2/p-kvcc+t,4ggvzpr wi4 7i he image?

  Which statement(s) about the endosymbiotic theory is o/.aaqok04 bs7uv 1)w ;ifa petrue?
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 evol:casxw2 zfxw1l vq /f 1u,2pe8ved from the same population of/,v 1:1fauxxz 22w8 eqlsfpc w cells?

  These photographs show the same section of a hg-f 0yj;7xve 1q6eix ef0wlw .uman retina. What is the reason for the differencexj-yi e1qxvfg0 w07.l; wee 6f between the two diagrams?

  Paramecium produces enzymes that caxh28v.y2*pooa qwv 2atalyse different chemical reactions taking place in the cytoplasm. What function of life is dea2payoow*v.x28 h2 vqmonstrated in this situation?

  What do the two labelled or6q m884hz0ffzeh*kc u50p vdvganelles have in common?

  Which organelle has a doub6,6.1h fq f/bi uim:kzk nix.nle membrane?

  Which row in the table correctly identifies structures which are pres;mxo)vr(dlb 1ljl lk40 -rx) gent (✓) or absent (×) in prokaryotic and eukam-grlbv) 0o;xllrl k(j x)4d1ryotic cells?

  Which structure found in a *oc 7 p hrjzuc-phi22x3 g(6rzeukaryote 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? 8fg8 ylhem,em7br 6+8esv7aa
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 8x-.f qr rxtwup4;su(/hrn ; ois not a function of the Golgi apparatus?

  Which statement(s) aypr /xbsomz fl,-50i f +kq 44(.o4zniovno0wbout cell structure 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 ad+u ib5ez xx7; micrograph 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 below showstqnlq e1am:6b2 o/6ax 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 prb fz.fg1gb9yukc7 n2 7okaryotic cells?

  Mesophyll cells are found in plants. Plant cel2xqn 1rez 9gv*cz;ic6 ls have unique characteristics that distingugv c6c9*nrze x1i2 q;zish 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 transvers ;m6xdaw6 z 1bfu,y2lze 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 and chromosomes xay-jt j03 p,hp0l1z kof bacterial cells?

  Cyanobacteria are prokaryotes that can perform photosynthesis. Which strg,+7af 8biqhio)w w-sjmf:+vuctural feature is wj8mvq+w:if+ohb i-,ag)s 7f common to both cyanobacteria and plant cells?

  Which statement provides eviderr/pc24nc7 sr nce for the endosymbiotic theory?

  Which part of the cell is labguj:v+; hzr:w elled with the letter P?

  What feature of chloroplasts provides evidence for the endosymbi4tm0 bj3uye1motic theory?

  The micrograph shows an image oqohbycst8yf y (e.21,f 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 rswi gv2.1 5kdshows a cell of the bacterium Vibrio cholerae. Which of the labelled structures maintains the cell’s shape and protectkvdw.g1s52 irs the cell from lysing during osmosis?

  Which process is most likely res;e eg4mgequ) ;ponsible for the origin of mitochondria as a eukaryeeegq;; g )u4motic cell organelle?

  Which organelle is the site of protein synthesi2 jla16z;by5pe5 o/t f0tsioy s?

The diagram below shows a cyanob x9w;* 58-pl hfsnij.cs7fpxsacterium, 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 figure below whose s7.d oizy 9i* dvg;h.x)l pgfw.tructure provides evidence for the endosymbiotic theorygw .i 7l*i9ohgxp zdf.v) d.;y.
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 organisms are correct?;ew jltg y247uuw6z7p

Below is a diagram of a motor neuron. Neurons are the longest cellkts /4fqrx5 pp-i. mt+ot-/nqs in the humant xp5./nrt- t qqm i4+os-p/kf body.



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

2.Explain how life functions are performed by Paramecium.

  The following electrolt)4vhfd 5h 7avdj) -fn micrograph shows part of an exocrine pancreas cell. Which of the labelled struct)hf7d jtv5)hdf -v4laures is responsible for the production of vesicles for exocytosis?

All organisms contain genetic material. The type, quantity and location ka( iettp6j87x c*ge:t;hk1s of genetic material differ bsk *;htxck81 e t6ige(t :ja7petween 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 mitof i3z8zws8k0n chondria support the endosymbiotic th80 83wf zkisnzeory?

1.Outline the steps in calculating themxga8* .uv- di 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. ,g:rseukn/t2 /n pu3d i, qic6


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 cevhxdqw2j(939r) ;2 uqwb7vqug0 fyx ells produce and release large amounts of carbohydrates. Which characteristics would you expect tox ygwbh2uxq;2er v9u 7q3f)d0qj( wv9 observe in such cells?

The diagram below shows a c0g) :zvjbd-ni ell.

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 mi 3v/ g.to 6fbiih-0l2nh rmv+vtochondria and prokaryotes?

  What is the correct magnification of this i,g8dgl41e v +nep)rbamage?

  Which characteristic is not true for both mitochondria and chloroplast :f(b)u;olh 2lw:f0b93 kag xw-kg ribs?

  The electron micrograph shows a prokaryot,ff* up6e4frcpsun+r7ip ,*ric cell, Cyclotella litoralis. What is the actual diametep rusnrp*c6rp 4f, ,f7*u+fi er of the cell in this image?

  The electron micrograph shows an ayv 2d a4h6uc11o3wpganimal cell.

  The electron micrograph shows a sarcomehmuj*57z,l tsp+ en4ure, the smallest functional unit of striated muscleh*utzm j ,754u psle+n tissue. What is the actual length between the two Z lines?

  Which organelle is formed by a vesicle derived from the cell membrane?v6y+5 r;zxmwi d asa21

  Which organism contains DNA in exactly two different org+ r9 /cq(alc/rcetesyt6+zfb) 2j q -xanelles?

1.Outline one way unicellular organisms can carry out each o;p3 v4rvxqr7fns5hw8 ,mbcry/r:f:wat z 1/ df nutrition, movement and excre hqs8 t1xf rdv7/;w5ybcw 34a:vfp/,:r rrmnz tion.

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 distingu* e3y+zr )u8bqn8n tlbhj e*l,ishes fungal hyphae and striated muscle from the two cell types shown inrbe8 h,*bl zen yj3nlt+) u*q8 the images?