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LABEL THE INDICATED PARTS OF THE MICROSCOPE
DRAW A FLOW CHART THAT SHOWS HOW TO USE A MICROSCOPE WORKS.
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1 Complete the sentences below by choosing the correct word from the box.
animal millimetre electron micrometres cells microscope small
Virtually every living thing, or organism, on Earth is made up of ____________________ .
There are plant cells and there are ____________________ cells.
Most cells are so ____________________ that we need a ____________________ to see them.
We use light microscopes and ____________________ microscopes to observe cells.
We measure cells in ____________________ .
One micrometre is one-thousandth of a ____________________ .
2 Use the words in the box to label the diagram of the microscope.
focus knob stage objective lens mirror
eyepiece lens base microscope tube
[pic]
Now write the name of each part next to the correct definition below.
____________________ The platform on which the microscope is built.
____________________ The lens you look through to see the object you are studying.
____________________ The platform on which the object you are studying is placed.
____________________ The lens that is closest to the object you are studying.
____________________ A knob you can turn to bring the object you are studying into focus.
____________________ The adjustable tube between the two lenses.
____________________ Directs light through the object you are studying.
Key terms
cell cell membrane nuclear membrane vacuole ribosome chromosome cytoplasm
nucleus mitochondrion mitochondria
There are many different types of cells. Their shape depends on the job (function) they have to do and so they often look a bit different from one another.
To make cells easier to understand, you will need to learn some words that are used often when discussing cells.
|Word |Meaning |
|Cell membrane |A thin boundary around the cell that keeps things inside cells and lets some needed things into the cells |
|Nuclear membrane |A very thin boundary around the nucleus of the cell |
|Vacuole |A storage area of the cell that is full of fluid |
|Ribosomes |Little round parts of cells that make chemicals called proteins, which are needed so that we can survive and |
| |grow |
|Chromosomes |Chemicals in the nucleus of the cell that carry all the information that we get from our parents |
1 Write out each of the words twice in the spaces that you have been given.
[pic]
2 USING THE LABELS ON THE ANIMAL CELL AS A GUIDE, LABEL THE PARTS OF ALL THE CELLS BELOW.
3 Describe one feature of each cell that makes it well suited to its function.
4 Now make your own animal cell by following these instructions.
a Cut out the cell parts from below.
b Colour in the parts so that they will be easy to see. Make sure that each of the cell parts has its own colour.
c Paste the parts onto the page using the labelled animal cell as a guide.
d Label all the parts of the cell you have created.
[pic] [pic]
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Comparing Plant And Animal Cells
Directions: Complete the chart below, then answer the questions.
|Cell Part or Organelle |Is It Found In A Plant Cell? |Is It Found In A Animal Cell? |
|Cell Membrane | | |
|Cell Wall | | |
|Chloroplast | | |
|Chromatin | | |
|Cytoplasm | | |
|Endoplasmic Reticulum | | |
|Golgi Bodies | | |
|Lysosome | | |
|Mitochondrion | | |
|Nucleus | | |
|Nuclear Membrane | | |
|Nucleolus | | |
|Ribosome | | |
|Vacuole | | |
Questions:
1. What cell parts do Animal cells have that Plant cells do not have?
2. What cell parts do Plant cells have that Animal cells do not have?
3. Why do Plant cells have cell walls and Animal cells do not?
4. Why do think Plant cells have bigger vacuoles than Animal cells?
Plant cells
Key terms
plant cell cell wall chloroplast cell membrane nuclear membrane vacuole ribosome
chromosome cytoplasm nucleus mitochondrion mitochondria
Plant cells have the parts that you have learnt about for animal cells and two extra parts that are not found in animal cells. These parts are the cell wall and chloroplasts.
|Word |Meaning |
|Cell wall |A boundary around the cell that gives the plant cells a definite shape; plant cell walls have a function |
| |similar to the bones or skeletons of many animals. |
|Chloroplast |The green parts of plant cells that carry out the chemical reaction called photosynthesis; photosynthesis |
| |turns light energy from the Sun into chemical energy (in carbohydrates). Animals gain this energy when they |
| |eat the plants and use it for survival. |
Activity
1 Write out each of the words twice in the spaces that you have been given.
[pic]
On this page and the next are some drawings that show what plant cells can look like and what the parts of plant cells look like. Although they are similar in many ways, cells from different parts of a plant look different because each type of cell has a different job to do.
Cell membrane, nuclear membrane, vacuole, ribosomes, chromosomes, cytoplasm, nucleus, mitochondrion (plural is mitochondria), cell wall and chloroplasts are all parts of plant cells.
1 Using the labels on the plant cell as a guide, label the parts of the cells below.
[pic][pic]
2 A WHAT ARE THE EXTRA PARTS SEEN IN THE POND WEED CELL THAT ARE NOT IN THE ONION CELL?
b Explain why these parts are in the pond weed and not in the onion cells.
3 Now make your own plant cell by following these instructions.
a Cut out the cell parts from below.
b Colour in the parts so that they will be easy to see. Ensure that each of the cell parts has its own colour.
c Paste the parts onto the page using the plant cell as a guide.
[pic]
Comparing Plant And Animal Cells VENN Diagram
Directions: Fill in the VENN Diagram to compare PLANT CELLS to ANIMAL CELLS. Use the words in the word box.
|cell membrane |cell wall |chloroplast |cytoplasm |
|mitochondria |nucleus |ribosome |vacuole |
|PLANT CELL | |ANIMAL CELL |
[pic]
What items are common to both plant and animal cells
Animal & plant Cells
Task 1 In the diagram below of an animal cell, identify and label the following organelles:
Nucleus, Cell Membrane, Mitochondria and Cytoplasm.
Task 2 Shade in each organelle of an animal cell a different colour.
Task 3 In the diagram below of a plant cell, identify and label the following organelles:
Nucleus, Cell Membrane, Mitochondria, Chloroplasts, Cell Wall, Vacuole and Cytoplasm.
Task 4 Shade in each organelle of a plant cell a different colour
.[pic]
Task 5 a) In both cells indicate where the respiration reaction occurs by circling the organelle with a red pencil.
b) In the plant cell indicate where photosynthesis occurs by circling the organelle with a green pencil.
c) Provide a legend for the reactions.
Task 6 Write out a sentence that describes for photosynthesis.
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Task 8 Write out a sentence that describes for respiration.
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Task 9 Write out the definition for a cell organelle.
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Complete the table below.
|Organelle |Is It Found In A |Function |
| |Plant Or Animal Cell | |
|Nucleus | | |
| | | |
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|Mitochondria | | |
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|Cell Membrane | | |
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|Cell Wall | | |
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|Chloroplasts | | |
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|Cytoplasm | | |
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|Vacuole | | |
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| | | |
1 What’s inside a cell? Here is how a plant cell could be ‘built up’ from its component parts. Label each of the parts as they appear, and briefly state the purpose of each part. The words you should use are cytoplasm, vacuole, nucleus, cell membrane, chloroplasts, cell wall.
|[pic] | |[pic] |
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|[pic] | |[pic] |
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Cells crossword
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|Cell Wall | | |
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|Plasma (Cell) Membrane | | |
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|Nucleus | | |
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|Cytoplasm | | |
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|Chloroplast(s) | | |
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|Mitochondrion | | |
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|Vacuole(s) | | |
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|Chromosomes (DNA) | | |
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|Ribosome(s) | | |
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Cells—the units of life
1 Many plant and animal cells have the same features. The labelled diagram on the left is an animal cell. The unlabelled diagram on the right is a plant cell.
a Label the diagram of the plant cell.
[pic]
b Now match the labels you have used with the correct definitions below.
Control centre of the cell; contains chromosomes.
Storage area for food, water and wastes.
Jelly-like substance; fills up most of the space in a cell and contains many
smaller structures.
Thin layer that surrounds each cell; protects the cell contents and gives the
cell its shape.
Place where respiration occurs and energy is produced.
2 Write the name of each animal cell next to its picture. Draw an arrow to match it to its function. If you need help, refer to page 72 of your textbook.
|___________ |[pic] |makes mucus to protect our intestines, stomach and windpipe |
|___________ |[pic] |produces movement by contracting (shortening) |
|___________ |[pic] |helps fight disease |
|___________ |[pic] |makes electrical messages which it passes to other cells |
|___________ |[pic] |combine during reproduction to form a new organism |
|___________ |[pic] |controls movement and passes messages from the brain to a muscle |
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|[pic] |
|Bank On It! Worksheet |
|Cells |
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|Work Bank |
|tissues photosynthesis, plant the important of transport. perform cells, They tissues for |
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|Simple ____________ are also referred to as ground tissues. ____________ include the tissues known as parenchyma, collenchyma, and sclerenchyma. |
|Parenchyma tissue is composed ____________ parenchyma ____________ which are found throughout ____________ plant. They are particularly abundant in |
|the stems and roots. The leaf cells that carry out photosynthesis are also parenchyma cells. Unlike many other plant cells, parenchyma cells are |
|alive at maturity and retain the ability to divide. They ____________ many functions. Some are specialized ____________ ____________ others for |
|storage, and still others for secretion and ____________ An ____________ class of parenchyma cells makes growth tissues called meristem and cambium.|
|These ____________ give rise to all other tissues in the ____________ body. |
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|Cells Cryptogram worksheet |
|Directions: Unscramble the words by placing the correct letter in the shaded boxes. Use the numbered boxes to complete the answer to the riddle. |
| RIDDLE: Digestive centers of a cell. |
| OMHOMRECSO |
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|LLLWELAC |
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|SUSTESI |
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|IAOHINCRODTM |
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|OCYLHRHPOLL |
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|NAGRSO |
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| ANSWER: |
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|Directions: Match the vocabulary words on the left with the definitions on the right. |
| 1. tissue |
|the central, essential, or highly concentrated part around which other parts are grouped. |
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|2. vacuole |
|a musical instrument consisting of a keyboard attached to a device that forces air through a number of pipes to produce a wide range of sounds; pipe|
|organ. |
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|3. chromosome |
|a membranous enclosure within a cell that contains substances isolated from the protoplasm, such as dissolved acids. |
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|4. chlorophyll (chlorophyl) |
|the ground protoplasm of cells that is outside the nucleus. |
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|5. cell membrane |
|any of the very tiny rodlike or stringlike structures that occur in nearly all cells of plants and animals, and that process food for energy. |
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|6. chloroplast |
|a small spherical body in the nucleus of a cell, consisting of protein and RNA. |
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|7. cell wall |
|the mass of like cells in an animal or plant body, esp. as they form a specific organ: |
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|8. nucleolus |
|one of the tiny, threadlike, DNA-containing bodies found in the cell nuclei of all plants and animals, responsible for transmitting hereditary |
|characteristics. |
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|9. organ |
|the green pigment in the leaves and stems of plants that is necessary for the production of plant food by photosynthesis. |
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|10. cytoplasm |
|the rigid outermost layer of a plant cell, which is made of cellulose. |
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|11. nucleus |
|a small oval green bit of protoplasm that contains chlorophyll and is the location of photosynthesis. |
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|12. mitochondrion |
|the semipermeable membrane that encloses the contents of a cell; plasma membrane. |
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[pic]
← ome ideas or rules about cells.
← A very thin boundary around the nucleus of the cell.
← A storage area of the cell that is full of fluid.
← The basic building blocks of all living things
← Many cells working together to do the same job.
← Many tissues working together to do the same job.
← Many organs working together to do the same job.
← All the systems together.
← A tool that helps us to see small things, such as cells, that we cannot see with our eyes.
← How many times bigger the object looks than it really is. Strong microscopes magnify objects many times.
← A living, jelly-like material that makes up the inside of cells. It has lots of chemicals and cell parts in it.
← The control centre of the cell. It is a bit like the brain of the cell.
← Small parts of the cell that make the energy for the cell to work.
← A thin boundary around the cell that keeps things in cells and lets some things that are needed into the cells.
← Little round parts of cells that make chemicals called proteins. Proteins are needed so that we can survive and grow.
← Chemicals in the nucleus of the cell that carry all the information we get from our parents.
← A boundary around the cell that gives the plant cells a definite shape. These help to give plants shape because plants do not have bones or skeletons like many animals.
← Green parts of plant cells that carry out the chemical reaction called photosynthesis. Photosynthesis turns light energy from the Sun into chemical energy (carbohydrates) that animals can use for energy to survive when plants are eaten
-----------------------
[pic]
[pic]
Brain cell
A brain cell passes messages to other cells through its many connections.
White blood cell
White blood cells help to fight disease. Some move about in the body to ‘swallow up’ bacteria.
Muscle cell
A muscle cell can contract (shorten) to produce movement.
Motor nerve cell
A motor nerve cell controls movement.
It passes a message from the brain to a muscle.
Sex cell
Male cells are called sperm. Female sex cells are called eggs or ova. Sex cells combine during fertilisation to form the first cell of a new organism.
Cell lining intestine
Cells lining the intestine
absorb digested food and pass it to the blood.
NAME ____________________________________________
FORM_____________________________________________
TEACHER__________________________________________
Pond weed cells
Onion cells
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