Which statement about eukaryotic celluhpj)wt fg:*- s is correct?

  Which are common featuuz vl+gg h)9l f69ox+lres of bacterial cells?
I.
Have a single chromosome
II.
Have plasmids
III.
DNA associated with proteins

  What type of cell is shown in the image? v )b7vtg ew)ejj,a 46y

  Which statement(s) about the mwe()isknk m 5nx,v6( rz k6t5endosymbiotic 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 bbiqq cx-byjb8l)u4q3q80 m8 that all life on Earth evolved from the same population of celbibbbjqx)8qqc3 l0-84 q yu8mls?

  These photographs show the samaubk zo n127cw2zm2. se section of a human retina. What is the reason for the difference bbau2zozk nws2m 1c. 27etween the two diagrams?

  Paramecium produces enzymes that catalyse different chemical reactions taking p,z 2wm8ksz 5l-3tovrsr0g eusf2 (b+ place in the cytoplasm. What function of life is demonstratesz w8 p l(z v03tfg,merr2sks+b25u o-d in this situation?

  What do the two labelled organelles have in common? 5m(7ss(l g p5htp xoci;xci) 5

  Which organelle has a double membrane?ti;0v0mee6k z

  Which row in the table correctly identifies st9sx 8bbp+j3w gt*rt6r ructures which are present (✓) or absent (×) in prokaryotic art x3r8 p9b 6+btjsgw*nd eukaryotic cells?

  Which structure found in a eukaryote has a double membrane?vmh 8i- ocn76kyvf9r:c6l rd 9

  
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 str1j8-af.kcvi fofbl (0 y*/ xijucture 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)c1ht i1;- m2jr n e 2xefvwvd2*as5hi is not a function of the Golgi apparatus?

  Which statement(s) about cell structure is/are not true? u;vog 50b uwzl-ztz +7

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 ai ny5f(w;(zn l 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 s2vnn fp ul;.u)h)+fd lhows 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 p0bu;n(kvjqx.i, f n-1;aizs qrokaryotic cells?

  Mesophyll cells are found in plants. Plant6;0wvem7 4qrcful)hc cells have unique characteristics that distinguish them from any other 6cqh4c f 7ewru)lv;0m 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 4yiub w:cm6h ( 41bcqvsection 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 ds s5u*ylm 7;tp0r rp(qescribes the DNA and chromosomes of bacterial cells?

  Cyanobacteria are prokaryotes that can0e te 111ia, 6ja(et5hwoo uak perform photosynthesis. Which structural feature is ci0thto5aoea e6aej1(u, 1w k1 ommon to both cyanobacteria and plant cells?

  Which statement provides evidencegu1x8fi:s nq7 ) jus1j for the endosymbiotic theory?

  Which part of the cell is labell5u5q1we 6 myxqed with the letter P?

  What feature of chloroplasts provides evidence for the endosymbi //eafscvr2 j)otic theory?

  The micrograph shows an image of a plant cell taken wx6s7hv7 m1gj 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 the bacterium Vibrm o5lstm/wk e gnl g*b(br;49;io cholerae. Which of the labelled structures maintains the cell’s shape and prok 9e/ 5 m*t;;bn4gblrsom lw(gtects the cell from lysing during osmosis?

  Which process is most likely responsible for the o y2rnso8lc4jw :iqg :6g;mh .jrigin of mitochondria as a eukaryotic cell orgjn sryql h2io:gw6gjm84; c. :anelle?

  Which organelle is the site of protein skhnu.(;wg*ujxt 59;* em jh4q4tm vd kynthesis?

The diagram below shows a cyanobacterium, Sy 8p5pzowvn ;)3lzu(p hnechococcus 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 orgahgtxu 99grc+8nelle visible in the figure below whose structure provides evidence for the endosymbiogt8gh9x cru9 +tic 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 azhr y-z(a5:82 ue:,ntiifwfmnd multicellular organisms are correct?

Below is a diagram of a motor neuron. Neurons are the longest cells in the humanzhi/x 8:h7lhf b7zlhi:f8h /h xody.



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

2.Explain how life functions are performed by Paramecium.

  The following electron micrograph shows.*7rioahk4hk *up w4h part of an exocrine pancreas cell. Which*r a.h*u khw4k 7ihop4 of the labelled structures is responsible for the production of vesicles for exocytosis?

All organisms contain genetic material. The type, quantity i( d 5qk/pzv7tand location of genetic material differ between kingdoms and pq vti (k7dz/5species.

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 chlorx;h4j6* dl fzqoplasts and mitochondria support the endosymbiotic theorz* qh; f64ljxdy?

1.Outline the steps in calc1jeo 1444 atx ,cnkgcxulating 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 sh7oi 8r 8fzw*oqt4 rl:jows a 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 carbohydrates. W,cg6z5no ot.krpteew4e6p 3rm b (;o(hich chargce4 t(ebkpomz5op rrow63(t en;,.6acteristics would you expect to observe in such cells?

The diagram below shows a cei0y2ud(aj 1r ,ceij+/hu6 ax qgo)p3n ll.

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 u )f e,okbcx2h*q71ce both mitochondria and prokaryotes?

  What is the correct magnific f zxfd 5,xj);,kb(xcyv02b8e.iycxj ation of this image?

  Which characteristic is not true for bot(zvir r:wmnp-z)p .z 9h mitochondria and chloroplasts?

  The electron micrograph shows a prokaryotic cell, Cyclotella litoralis.6fnm6a h a1sv(n;s-lgv , 1hcy What is the actual diameter of the cell in thin v c6v;(hga- s6h l1ysfanm,1s image?

  The electron micrograph shows an animal gx7zlx 1mb2vkszzg:tj )5w)+ cell.

  The electron micrograph shows a sarcomere, the smallest functional uni6ewcx+p ,sm t;* yxy1myow4n 0t of striated muscle tissue. What is the actual length+pwy t4;1xm wcos0nyye, 6* mx between the two Z lines?

  Which organelle is formed by a vesicle derived from (f2q vaut tck) c48ie0the cell membrane?

  Which organism contains DNA in exactly two differentw9rbse6 l. 2dm organelles?

1.Outline one way unicellular organisms can carry out each oflli67; iv(d ;nc8w znt nutrition, movement ai 8nn twldl;(v6;c7zind 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 distingub c.aiszx g2j8 5c/u8uishes fungal hyphae and striated muscle from the two cell types shown in u 2s zacugx/.jc85b8 ithe images?