Which statement about eukaryotic cells 4qrdw/n(u r,f is correct?

  Which are common features of bacterial cells? k8j +gkjuqy62h 5qve0
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is shown inv8c k vyxj7)4g.ur .9,zsqxll the image?

  Which statement(s) about the endosymbiotuqbxt6o6u c365u,cn jesde+7 ic 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 ow3+ntxm ;r lx-7. fw u.izdr7Earth evolved from the same population of nz-;t.7f+ d3rx7 ixmlourw .wcells?

  These photographs show the same section of a human retina. What is the uo 4sd+hut xy,,jy/,zreason for the difference betweey ushd+t u4jy,x o,,z/n the two diagrams?

  Paramecium produces enzymes thag/yvf7ge4 a-75c*u4k eldogd/ ;ufuv t catalyse different chemical reactions taking place in the cytoplasm. What function of lifedg 74/ve *egflof d 45kaygv7u;cu/u- is demonstrated in this situation?

  What do the two labelled organelles have in commo0 2pva nszjy fuw c+38vsm:5+nn?

  Which organelle has a double memv1re :4f0b 1gf8 f1eawi n2leqbrane?

  Which row in the table corr+kw+ kr+xg9s tectly identifies structures which are present (✓) or absent (×) in prokaryotic and eukaryt+9gsxk+ k +rwotic cells?

  Which structure found in a eukaryote has a6k a-von pc)u1cu7flc2:d jt. 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? onxp/ lkhe*isf( 2p (hg*to6 a2c)df)
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 funcms-l.tbw0 u5bz5yq 6 ation of the Golgi apparatus?

  Which statement(s) about cellnb;63 eb8u 7xs2nmxhm 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. w7gmt 1mp0wcjjua4njo031 2g


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 shomtk, dah-b-a30 cao6 prj5tk)ws 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 prokaryoeltjez0 3)*7jr : .ncakl/v fntic cells?

  Mesophyll cells are found in p tgr:h1,-ci6p p34 puxjhkix +lants. Plant cells have unique characteristics that di -ph4,kph1xr:g piit36c+x j ustinguish 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 transverse section through a lea;6q9x zzpfmk,4rl7e yfzz- 1zf.



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 chromosom+ lr1*1c9l x 6tgo8qp6yh vrbwes of bacterial cells?

  Cyanobacteria are prokaryotes that can p7d*yb8r;ejkg*xgla q9 rqu 2 7erform photosynthesis. Which structural dkr7ygg2 j 9q*lr a8uxbe;q7*feature is common to both cyanobacteria and plant cells?

  Which statement provid r3(ln;rw3u bnm6o (+uo p-ggles evidence for the endosymbiotic theory?

  Which part of the cell is labelle5; ,orviwhi; ra b2f/yd with the letter P?

  What feature of chloroplasts provides evidence for the endosymbiotic theor2cz,5jew di3 ql(obqb23;ro l y?

  The micrograph shows an image of a plant cell taken with 4i ks v9v-axj8a 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 the bacterium Vibrio cholerae. bbel z9 17zw3pcmir+ 2Which of the labe+1lbbpz7zi c 9mwr2 e3lled structures maintains the cell’s shape and protects the cell from lysing during osmosis?

  Which process is most li(0o+x )g*v0jw.n4rorq v n kthkely responsible for the origin of mitochondria as a eukaryotic cell organel. w0 rhn gk+(ox0n4v rj*o)vqtle?

  Which organelle is the sitejlpu ge:* ,pmjp crpni1f(+6) of protein synthesis?

The diagram below shows a cyanobacterium, Synechococcus elongatus. m(:8oj j; hkby

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 -n y,h1gqb4.t p4kno xbelow whose structure provides evidence for tnnpbhgt-y4 1, xk4 q.ohe 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 aboublh)gn(ncbp.vq94c )a r 6vv/t unicellular and multicellular organisms are correct?

Below is a diagram of a motor neuron. Neurons are th4 .nnyb9ma -owe longest cells in the human4 9.n nm-woyba body.



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

2.Explain how life functions are performed by Paramecium.

  The following electron micrograph shows par)t2zdhkv ric83iz+- st of an exocrine pancreas cell. Which of the labelled structures is responsible for the production of vesicles for exocyto d3riz) s+cvhk2tz8-i sis?

All organisms contain genetic material. The type, quantx3ssij 37vcf2wq+c 2city and location of genetic material differ between7xw+jc fqc3cv si 23s2 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 support the j;wc/+emol )iw x69 efendosymbiotic theee ;m of/j)cw x9li6w+ory?

1.Outline the steps in calcu)vs8*s d1a jxslating 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 w/)4i:xpb j1 qwnib t8a 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 release large amounts of ca si5mai9 gf7t/t.7hvlrbohydrates. Which characteristics would you expect to o aim5s9 t77ig/fh .tlvbserve in such cells?

The diagram below shows a cell. 3pi 4w46hhvmq

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 applir4owa+7;ntz i v5pke 6es to both mitochondria and prokaryotes?

  What is the correct magnificat kl9z4oxh /9ovion of this image?

  Which characteristic is not true fort4eu*p q n t 8p2vnjg04+c.mzu both mitochondria and chloroplasts?

  The electron micrograph sj 8s 6xqmoqx.x0ie5y4 hows a prokaryotic cell, Cyclotella litoralis. What is the actual diameter of the xxj .x eq640isoq5m 8ycell in this image?

  The electron micrograph shows an animal celliclejai*s+j16 x,3hilu0( klft f:5- :tzoqb .

  The electron micrograph shows a sarcomere, the sdgy cht u 7afq41+k7v*mallest functional unit of striated muscle tissue. What isfc 7gh ku*t4a+d7vy1q the actual length between the two Z lines?

  Which organelle is formed by a vesicle derived from the celv5nf) nyg dhog/ 1c*+ orl6w-ol membrane?

  Which organism contains DNA in exactly two different organelld vcndqq8s9n u)r z*(1i4)egp es?

1.Outline one way unicellular organisms can carsaw 57s;, ed+i;. tvbj8uupr pry out each of nutrition, movement and e 5d7p s;avitp8u+u,e r. wb;sjxcretion.

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 0c 7;8pslim zmmuscle from the two cell types p8sz0m7l ;imc shown in the images?