AS Biology Chapter Test - 3 Chapter A: Cell structure Name: Roll No. Time: 1 hour Date: Marks out of 60 Subject Teacher’s Signature Guardian’s Signature (Answer ALL the questions in the space provided) 1. The table below describes the structure and function of organelles in eukaryotic cells. Complete the table by filling in the empty boxes A, B, C, D and E Organelle Structure / Feature Function of feature Nucleus Nucleoli present A B Inner membrane folded into cristae C D Vesicles containing hydrolytic enzyme Breakdown of old organelles. Cell lysis Smooth endoplasmic reticulum Consists of flattened membrane- bound sacs called cisternae E [Total: 5 marks] 2. The table below refers to a bacterial cell, a liver cell and a palisade mesophyll cell and to the structures which may be found inside them. If a feature is present in the cell, place a tick (√) in the appropriate box and if a feature is absent from the cell, place a cross (×) in the appropriate box. Feature Bacterial cell Liver cell Palisade cell Nuclear membrane Vacuole Cell wall
Transcript
AS Biology Chapter Test - 3Chapter A: Cell structure
Name: Roll No.Time: 1 hour Date:
Marks out of 60 Subject Teacher’s Signature Guardian’s Signature
(Answer ALL the questions in the space provided)
1. The table below describes the structure and function of organelles in eukaryotic cells. Complete the table by filling in the empty boxes A, B, C, D and E
Organelle Structure / Feature Function of feature
Nucleus Nucleoli present A
BInner membrane folded into cristae
C
DVesicles containing hydrolytic enzyme
Breakdown of old organelles.Cell lysis
Smooth endoplasmic reticulum
Consists of flattened membrane- bound sacs called cisternae
E
[Total: 5 marks]
2. The table below refers to a bacterial cell, a liver cell and a palisade mesophyll cell and to the structures which may be found inside them. If a feature is present in the cell, place a tick (√) in the appropriate box and if a feature is absent from the cell, place a cross (×) in the appropriate box.
Feature Bacterial cell Liver cell Palisade cell
Nuclear membrane
Vacuole
Cell wall
Microvilli
Chloroplasts
Mesosomes
Glycogen granules
[Total: 7 marks]3. (a) Describe how particles, such as bacteria, are taken up by phagocytes. [2]
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(d) Phagocytes contain many lysosomes. State the function of lysosomes in phagocytes. [1]………………………………………………………………………………………………………….
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[Total: 3 marks]
4. Fig. 4.1 shows a transverse section of a root nodule of a legume. Fig. 4.2 is a drawing of a cell from the centre of the nodule made from an electron micrograph.
Fig. 4.2
(a) Name three structures that are present in cells in the cortex of the root that are not present in bacterial cells. [3]
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(b) Explain the advantages of studying cell structure with an electron microscope rather than with a light microscope. [2]
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[Total: 5 marks]
5. Fig. 5.1 is a drawing made from an electron micrograph of a cell from the ciliated epithelium of the bronchus.
Complete the table below by writing the appropriate letter from Fig. 5.1 to indicate the structure that carries out each of the functions listed. The first one has been completed for you.
function structure
facilitated diffusion of glucose B
creates a current to move mucus
aerobic respiration
makes ribosomes
a site of transcription
packages proteins into lysosomes
[Total: 5 marks]
6. Fig. 6.1 is a drawing of a transverse section of a leaf.
Fig. 6.1(a) Use label lines and the letters X, S, E and D to indicate the following on Fig. 6.1: [4]
X – a xylem vessel S – a phloem sieve tubeE – a lower epidermal cell D – a palisade mesophyll cell
(b) Calculate the magnification of Fig. 6.1. Show your working and express your answer to the nearest whole number.
7. Fig. 7.1 is a diagram of an electron micrograph of a plant cell. Fig. 7 .2 is a diagram of an electron micrograph of an animal cell. Both diagrams are incomplete.
Fig. 7.1 Fig. 7.2
(a) Explain how Fig. 7.1 can be identified as a plant cell. [2]………………………………………………………………………………………………………….
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(b) Some organelles are missing from Figs 7.1 and 7.2. Information about these organelles is shown in the shaded boxes in Table 7.1. Complete the empty boxes in Table 7.1 by adding the correct information below each column heading.
Table 7.1
name of diagram of organelle(s) as one function of organelle cell type(s) in which
organelle seen under the electron organelle is located microscope (not to scale)
mitochondrion animal and plant
assemble microtubules to produce the mitotic spindle
rough protein synthesis endoplasmic reticulum
Golgi animal and plant
apparatus
photosynthesis plant only
[8][Total: 10 marks]
8. (a) Phagocytes and lymphocytes are both involved in defence against infectious diseases. Active B lymphocytes are known as plasma cells. Fig. 8.1 shows drawings made from electron micrographs of a phagocyte, A, and a plasma cell, B.
A B
Fig. 8.1
Complete the table to show three visible structural differences between the cells A and B. [3]
(b) Calculate the magnification of the cells in Fig. 8.1. Show your working and give your answer to the nearest whole number.
9. Fig. 9.1 shows a drawing made from an electron micrograph of two adjacent cells in a leaf.
Fig. 9.1
(a) Structures A and B are both visible using the light microscope, but the internal detail of these organelles shown in Fig. 2.1 is only visible using the electron microscope.
Explain why the internal details of structures A and B are only visible when using the electron
microscope and not when using the light microscope. [3]
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(b) Name in full the structures labelled C, D and E. [3] C ………………………………………………………………………………………………………….
D ………………………………………………………………………………………………………….
E ………………………………………………………………………………………………………….
(c) State one role of vacuoles in plant cells. [1]
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(d) Structures F and G have very different permeability properties. Explain how the composition of
structures F and G determines the permeability properties of these structures. [4]
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(e) Fig. 9.1 shows two plasmodesmata connecting the adjacent cells. Describe the roles of plasmodesmata
