Download Cell structure and transport

Science Home Learning Task
Year 9
GCSE – Cell structure and transport
Name
Tutor Group
Teacher
Given out:
Tuesday 18 April
Parent/Carer Comment
Staff Comment
Target
Hand in: Monday 24 April
Investigating science
Welcome to your science homework booklet. This booklet is designed to give you some
extra practice on the key areas in Biology Paper 1, the “cell structure and transport”
section of the GCSE course.
You need to carry out tasks 1, 2, 3, 4 and 5. Then to assess your knowledge of the topic
try task 6.
Don’t forget to fill in the last page and ask a parent/carer to sign the box on the front
TASK 1- Multiple choice quiz (level 3-5)
Try the multiple choice quiz below. Tick the correct option from those below.
1. Some cells are specialised in order to carry out particular jobs.
The following structures belong to particular specialised cells. Which of the
options shows the correct functions of these structures?
2 What type of cell is shown in the diagram?
Animal cell
Plant cell
Bacterial cell
Yeast cell
3 Which of the following correctly defines active transport?
Substances move from a region of high concentration to a region of low
concentration
Substances can move without the use of energy
Substances move against a concentration gradient across a partially permeable
membrane
The movement of water molecules only
4 Which of the following structures is found in plant cells, and not in animal cells?
Cytoplasm
Ribosome
Permanent vacuole
Nucleus
5 Which of the following cells would contain a lot of mitochondria?
Ovum (egg cell)
Muscle cell
Skin cell
Leaf cell
6 Which of the following is a correct definition of diffusion?
Diffusion is the spreading of particles resulting in a net movement from a region
where they are in low concentration to a region of higher concentration.
Diffusion is the spreading of particles resulting in a net movement from a region
where they are in high concentration to a region of lower concentration.
Diffusion is the net movement of particles against a concentration gradient.
Diffusion is the net movement of water from an area of high concentration (of
water) to an area of low concentration (of water) along a concentration gradient.
7 Where in a cell are proteins made?
Nucleus
Chloroplasts
Ribosomes
Mitochondria
8 What type of plant cell carries water around the plant?
Root hair cell
Xylem cell
Phloem cell
Photosynthetic cell
9 Which of the following diagrams shows a correctly labelled animal cell?
TASK 2 – Animal and plant cells
1. In the boxes below, draw and label the general structure of a plant cell and an
animal cell (level 3).
Plant cell
Animal cell
2. Complete the table below about plant and animal cells by filling in either the
name of the organelle or its function (levels 4-5).
Organelle
Function
A liquid gel in which the organelles
are suspended. Chemical reactions
happen here.
Nucleus
Controls the passage of substances in
and out of the cell.
Mitochondria
Ribosomes
Contain chlorophyll. Needed to
absorb light so the plant can make
food by photosynthesis.
Made of cellulose. Strengthens the
cell and gives it support.
Permanent vacuole
3. State 3 structures found in plant cells but not animal cells (level 4).
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4. What is meant by a eukaryotic cell? Give an example (level 4).
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What is meant by a prokaryotic cell? Give an example (level 4).
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Describe the difference between the genetic material in a prokaryotic and a
eukaryotic cell (levels 5-6).
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5. What is a specialised cell? (level 4).
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Name 3 specialised animal cells (level 5).
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Choose one of the specialised animal cells you have named. Make a sketch below
of the cell you have chosen (levels 3-4).
Write down the function of the specialised cell you have drawn above and state
any adaptations it has to help it carry out this function (levels 5-6).
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Plants also have specialised cells such as the root hair cell. Draw the structure of
a root hair cell in the box below (levels 3-4).
Write down the function of the root hair cell and state any adaptations it has to
help it carry out this function (levels 5-6).
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The phloem and xylem cells are two other examples of specialised cells in plants.
Choose one of these two cells and write about its function in the plant as well as
any adaptations it has to carry out its role in the plant. Include a diagram or
picture of your chosen cell too (levels 4-6).
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TASK 3 – Transport in plants and animals
1. What is the meaning of diffusion? (level 4)
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Give an example of where diffusion happens in the body and describe how it
happens (level 4-5).
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State one factor that can affect the rate of diffusion and explain how it causes the
effect (level 6).
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2. What is osmosis? (level 4).
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What do the terms hypertonic, isotonic and hypotonic mean? (levels 4-5).
Isotonic
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Hypertonic
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Hypotonic
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Which one or ones of the above terms can be harmful to cells in our bodies such
as red blood cells? Describe the effect that can result in our cells. You can include
diagrams to help your explanation (levels 5-6).
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Osmosis is also carried out in plants. Describe how the process can be beneficial
to plant cells. You can include diagrams to help with your explanation (levels 56).
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3. Active transport is another transport method carried out by plants and animals.
Describe how a living organism (plant or animal) uses active transport to help it
survive. Include the substance(s) that the plant or animal moves using this method
(levels 5-7).
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TASK 4 – Comparing transport methods (levels 4-7).
In TASK 3, you looked at the different methods that plants and animals use to move
substances around. In this task, you need to compare the 3 different transport methods –
diffusion, osmosis and active transport. Include both similarities and differences
between the methods. Show your answer as a table or bullet points in the space below.
TASK 5 – Six-mark question (levels 4-8).
The six-mark question is a long-answer question designed to test your knowledge
about a topic and your writing skills. Answer the question below on the space
underneath.
In this question you will be assessed on using good English, organising
information clearly and using specialist terms where appropriate
What adaptations would you expect to see in an animal with effective
exchange surfaces? List these adaptations and explain the importance
of each adaptation.
Plan your six-mark answer here.
TASK 5 – continued
Write your six-mark answer in the space below.
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TASK 6 – Revision crossword (levels 3-5).
Solve the crossword below as a way of assessing what you do and don’t yet know.
Across
1. The site of protein synthesis in a cell.
10. The net movement of water from an area of high concentration to an
area of low concentration along a concentration gradient.
11. The membrane around the contents of a cell which controls what moves
in and out of the cell.
12. A liquid in which some solids will dissolve.
13. The water-based gel in which the organelles of all living cells are
suspended.
15. A group of different tissues working together to carry out a particular
function.
16. Allowing only certain substances to pass through.
17. Adapted for a particular function.
18. The solid which dissolves in a solvent to form a solution.
19. The movement of substances against a concentration gradient and/or
across a cell membrane, using energy.
Down
2. An instrument used to magnify specimens using a beam of electrons.
3. Membrane-bound structures in the cytoplasm of a cell which carry out
particular functions.
4. The site of aerobic cellular respiration in a cell.
5. A group of organs working together to carry out a particular function.
6. An instrument used to magnify specimens using lenses and light.
7. A group of specialised cells all carrying out the same function.
8. The gradient between an area where a substance is at a high
concentration and an area where it is at a low concentration.
9. An organelle found in many living cells containing the genetic information.
14. The net movement of particles of a gas or a solute from an area of high
concentration to an area of low concentration (along a concentration
gradient).
Self Evaluation of my Homework
I am a R____________________ learner.
I know this because:
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I believe that my effort and attitude to learning for this booklet is a:
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I know this because:
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