Which statement about eukaryotic cells i( 86apg jhya0us correct?

  Which are common features of bacterial cellsn2kawu i+hq+. ?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is sjo :f9eoz*eh 7hown in the image?

  Which statement(s) abou 2rtw+gbv- y4)izpq(kits 2 x1t 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 evidenc+em,asmlv y 66e that all life on Earth evolved from the same population of cvyae,s6lm +m 6ells?

  These photographs show the same section of a human retina. What is the hbe 9.0ylws7)-glwzb reason for the difference between the two diagraws9bbl 7.-0y) gezlh wms?

  Paramecium produces enzymes that catalyse diff*: m*i8cfo kzo;tyga3z.j*fz erent chemical reactions taking place in the cytoplasm. What function of life is demonstrated in this si*ig:mojofy.* z83kt ;zz*a fctuation?

  What do the two labelled organelles have in comm iwp(d4ogpmnc,x i) w10mx ;.mon?

  Which organelle has a +b/huz b (mt0.hs8hoe,kr 7tnf) k) mfdouble membrane?

  Which row in the table correctly identifies structures which are present (*y n1,pe mywf-✓) or abf e1my- y,*pwnsent (×) in prokaryotic and eukaryotic cells?

  Which structure found in a eukaryote has a double mem49m gs3k)jh-thgdo o ;brane?

  
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?:; igbcoa,;crf;e/u3bdjd )mq+y,c x
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 fv40,izduex)lzn r k h+*y-dp8 unction of the Golgi apparatus?

  Which statement(s) abou8l de*ilzy z 3et8nh-5t 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 a micrograph of blood. hwzp.x 2 ; d 21(mod1xlto3.qek3ixlh


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 cellsdhf8/rt;ismd0 q31s t/jo ( to.


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 prokaryotic cellsnns:y:u *n*s.dvshh: c a.dd :?

  Mesophyll cells are found in plants. Plant cells have unique ch9 0k1tz/bm.-pk+t vnqxc0hdq aracteristics that distinguish them from any 00ktzmp -xdqh1 + .t cvbkq9n/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 ses w5nta etn 99k -sk-85i f*pfmrqer79ction 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 bacterial cel,o yuik3. bhw8ls?

  Cyanobacteria are prokaryotes that can perform photosynthesy h md70(sbm2bis. Which structural feature is common to both cyanobam bd20ym hs(b7cteria and plant cells?

  Which statement providesxqcgw3.kuh v.312 qw/h6ff o b evidence for the endosymbiotic theory?

  Which part of the cell hn ago6ti7ye -7p-/fhis labelled with the letter P?

  What feature of chloroplasts provides evidence for the endosymbiotic theo+-+k6 vw /6nycupix ofry?

  The micrograph shows 6vlzh01g acl4ix5wx9an 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 shobpu) /kfw4eg4w9+xt 2 m skk,cj z4i1iws a cell of the bacterium Vibrio cholerae. Which of tbkkx1u4es 94kw4 fjcpi +/2w,z )gmithe labelled structures maintains the cell’s shape and protects the cell from lysing during osmosis?

  Which process is most likw( ;z9pjunq:uely responsible for the origin of mitochondria as a eukaryotic cell org u(jpq9u; znw:anelle?

  Which organelle is the site otf(87 w wikpg/)pkpx 8f protein synthesis?

The diagram below shows a cyanobacterium, Synechococcus elongatus.4:ed8 5n /forqtgvgfh4 jd: o,

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 h1rfla 6ok1pc1prk. z:)vw5 y )1gc knevidence for 16kfo 5.rck1 pn :vha zkl)yp w11grc)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 organil li0 t e5rixjc+0(z46zp d/hesms are correct?

Below is a diagram of a motoo9(;)vetgk m-lfxzg: pf4 x :mr neuron. Neurons are the longest cells in the human bp zxt9ggkf()e;-lm:m:fx v4oody.



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 pancreas cemu.8qxb2vkr 0i /e,*. xw3lhn t ded9gll. Which of the labelled structures is r ln /t xq v d*8k.mrg2bwxh,0iude.93eesponsible for the production of vesicles for exocytosis?

All organisms contain genetic material. The type, quantity and location o e*orlp: u), vedmu(0gf genetic material differ between kingdoms and species. ,m:v(0udu o)gee*lpr

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 mlqxhpjr(3aue6j2 3ei9/oyg x adj). :itochondria support the endosymbiotic th:(pjidje3u93 lx2 eja )yxarog6 .q/heory?

1.Outline the steps in calculating the magnificatio)y bf6bve91 gk+ur out1qtqm+jc; vf -q8,g k7n 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 w3em u)5j s(loa 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 celdsr-z:p k:bfrt 7 2x6q5j njl8ls produce and release large amounts of carbohydrates. Which characteristics w:86nj pqb ft l:zkjr5-xd2 rs7ould you expect to observe in such cells?

The diagram below shows al itoky mh3:6rty5a0- 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 1y b2sx(4prtoprokaryotes?

  What is the correct magnification of this image?xk-olsb+:/js pno zkg5;v(3q

  Which characteristic is not true for both mitochondria and chloroplastm89jk ;s9/il) qcuj+wmgmg ,tv-p0 qas?

  The electron micrograph s ga)g3:++hww0zj aiu0tb mb9zhows a prokaryotic cell, Cyclotella litoralis. What is the actual diameter of the cell in this image?ti3 u0bwz9jag:zba+wmh+0 )g

  The electron micrograph shows an anixoojf- 7fi )) skhan07mal cell.

  The electron micrograph s,sgfn 7m9px: fhows a sarcomere, the smallest functional unit of striated muscle tissue. Wham:n p9ffsx7,g t is the actual length between the two Z lines?

  Which organelle is formed by a vesicle derived fr+ cvzyah 1e;;vom the cell membrane?

  Which organism contains DNA in exactly two different organelleex:lm ,rgu+.9 gkvsf *s?

1.Outline one way unicellular oxom x (j:1r fa/2hviw2rganisms can carry out each of nutrition, movement and excretionx woj:/ f22xhim(vra1.

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 andq95du jqgsk8t 9kr6 8r striated muscle from the two cell types showj85q k krsgd89 qtu9r6n in the images?