Which statement about eebupu6 cuq ui) 9(d..vukaryotic cells is correct?

  Which are common feat.kl z 8a)epe5yures of bacterial cells?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is shown in the imokz-)u 1 6j d a1hhwi-keqc,q m:*;qypage?

  Which statement(s) abo ktwyf6v0tv 9)ut 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 same z, v ymt6*rzr:population of ce:vtz6zm yrr* ,lls?

  These photographs show the samm)ai*lz .uq m;e section of a human retina. What is the reason for the difference between the two diagmq* m)l;au.i zrams?

  Paramecium produces enzymes that catalysr/vy(z3df + wbe different chemical reactions taking place in the cytoplasm. What b3 zvw(rfyd+ /function of life is demonstrated in this situation?

  What do the two labelled organelles h lp4*v xp-ggwae z..;gave in common?

  Which organelle has a double membrane;pble :er 6ar -+jc7wf?

  Which row in the table correctly identifies str+i f0u o*-yrn2 2v 3xpf1tz:kew)k xleuctures which are present (✓) or absent (×) in prokaryotic and euk*k1ely+ki) -fno:rxv t z22uw3 fp0xe aryotic cells?

  Which structure found in a eukaryote hao)am5l+lvl r hwhw:7u 8;t0mes 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 cel/6dkrqw.ps +*v wl1 mnls?
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 appara7*e :xg2) q.e quy,vx8;c) kpsrrg oijtus?

  Which statement(s) about cells/ x eyn9me+98gwvdj5 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 a mil-wwj89dmy lao 9.xe.k*dkcn0+g )vy crograph 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 shows Es/d4++ ycjkh l jju;l8. 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 hz nb/*g-k;gt(c *drmukaryotic and prokaryotic cells?

  Mesophyll cells are found in pl:d:utp04 y gheants. Plant cells have unique characteristics that distinguish them from a:y04p t:egh duny 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 wrgraybtv)i-0; 2y8 5tvysj0transverse 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 of bacte9w 2x h us.o44yd /yd(btvwu/yrial cells?

  Cyanobacteria are prokaryotes that can perform photosynthesis. Which +8x*ojo)fdbdda0n m*ob+l( k structural feature is common to both cyanob+d*ob)d8*0on m+b a (kjlodfxacteria and plant cells?

  Which statement provides evidence for the endosymb. d4e1t(;mrwt s-yffmiotic theory?

  Which part of the cell is labelled with thsc dps .e9gj4w4sxm0nt 04ba (e letter P?

  What feature of chloroplasts provides evidence f0.p lnyw2pn0 n+q oa/t6q k.btor the endosymbiotic theory?

  The micrograph shows an image of a plant cell takf(-ufvk6 uv;b1vf jl3en 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 d n5/hs 9gri6wy8vkt. cell of the bacterium Vibrio cholerae. Which of the labelled str gkyhn6d/v.st9r5w 8 iuctures maintains the cell’s shape and protects the cell from lysing during osmosis?

  Which process is most likely responsible for the origin of mitj mc/ogpl)9; pochondria as a eukaryotic cellpc)gm9o/ jp ;l organelle?

  Which organelle is the site of protein synt3yern)3+uid l hesis?

The diagram below shows a cyanobacterium, Synechococcus elo2b1 m42g qm-hmkbjzp -ngatus.

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 -q5r8f fw o eqn5o8v-levie v8-nq or85ffw qo5l-dence 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 organ77dc jf3 ,34geqoure wisms are correct?

Below is a diagram of a motor neuron. Neurons are the longest cells in t b*ggf5 ap*z 1 cfb)v(/un:ylyhe human */fb fyl)(gg:uyb 5ca*p1vznbody.



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

2.Explain how life functions are performed by Paramecium.

  The following electron micrograph shows part of an exocrine pehopo d8.h 4-uancreas cell. Which of th4ep o-. od8uhhe labelled structures is responsible for the production of vesicles for exocytosis?

All organisms contain genetic material. The type, quantity and location of gei ql-;.r -+c :t*gvct+ 3zrlgt jefqi+netic matertvtq-rirl-jl z :qfti+.3c*c gge++;ial differ between 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 supp x:o 2cvm8 vg je+ad/h1gu- 9*bpufn*oort the endosymbiotic theory o:bjop *n9mf+gh /e8g*x-u21vu cvad?

1.Outline the steps in calculating the magnification of a micrograph.nj/ 4nfx w2-zvfuq w y3o+u7h8

2.Describe the steps taken to focus on a specimen using the 40x objective lens of a light microscope.

  The diagram below shows a cellqtrmjt;(tf it7 qy 6,8g 4cwu-.


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 p8pt p nb/szuum w( 9i1g5a)kl(s-j i(/ al)xxuroduce and release large amounts of carbohydrates. Which characteristics would you(inxgb tj/l(/a8 m z9lux1u)waui sskp5-) p ( expect to observe in such cells?

The diagram below showsr5v0a)g2 tyg : l la5,xf s9mp+orwop/ 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 and1dasq-*ctl 8g,q: wxkikk)1c prokaryotes?

  What is the correct magnification ofhrs)n i/db 4u* this image?

  Which characteristic is not true for both mitochondria and chloroplasts?us(nm /f+ : zn. cm(vd5ka9djn

  The electron micrograph shows a prokaryotic cell, Cyhaxj8a j/08x bhtv1z0 y-8 e,eve3yecclotella litoralis. What is the actual diameter of the cell in thisj va/txhx cz j8ee-e8ea,h01b3vy0y8 image?

  The electron micrograph shows an animal cell. u*xp e/xqx 1q3

  The electron micrograph shows / kn6gtmwfh;j70 -w: v-kljuga sarcomere, the smallest functional unit of striated mus7g:- f06ku;lj-kwgjvh/m twncle tissue. What is the actual length between the two Z lines?

  Which organelle is formed by a vesicle derived from the cellutf t;jn,3 e v:hoqm:3 membrane?

  Which organism contains DNA inmthd r/dp9j-1 ui i4t. exactly two different organelles?

1.Outline one way unicellular organisms can carry out each of nut /y5 pqze;gwbo ..r(rerition, movement and erry;o(g qb/e zp5. w.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 from th(at1jt-t0s1:qbzaqp e two cell types showbj z1ta qp tq01t:-(san in the images?