Observing Cells Flashcards
What are living oregernisms made of
All living organisms are made of cells cells are the building blocks of life they are the smallest units found in an organism organisms such as bacteria can be formed a single cell millions of cells can join together to form a person like you
Seeing cells
Cells were first seen about 350 years ago when Robert Hickey a scientist look down a microscope at a thin slice of cork he saw tiny room like structures which year he called cells these are plant cells Cork is a type of tree bark
Making a observation
Do you see a very small object in detail you need to use a microscope is magnifies the image using lenses. Looking carefully and in detail at an object is called making an observation. To make an observation, the object that you wish to observe needs to be very strange that like can travel through it. You might need to add colour dye to make the object easier to see.
Parts of a microscope?
One move the stage to its lowest position. Placed the object you want to observe on the stage. Select the objective lens with the lowest magnification. Look through the eyepiece and turn the course for snob slowly until you see your object.
Turn find focused up into the object comes into focus. Repeat steps one and six using an objective lens with a higher magnification to see the object in greater detail.
Magnification
The eyepiece lens on objective lens on a microscope have different magnifications. Together they Magnify the object. For example, if you have an eyepiece lens of times 10 and an objective lens of times 20 the object would be magnified 200 times. Total magnification equals eyepiece lens magnification equals 10 equals 200.
What’s inside an animal cell?
Animal cells have in a regular shape. They contain four components a nucleus in a cell membrane Kaito plasm and many meta Condra (singular meta Condron). 
What is what is inside a plant cells?
Plant cells have a more regular structure than animal cells this allows them to fit together like bricks they contain seven components. Like animal cells, they contain a nucleus, a cell membrane, or Kaito plasm how are they also have three extra components of a cell wall, a vehicle, and chloroplast.
How do animal cells differ?
Which cells in your body contain a nucleus, so membrane, Kaito plasm, and a mitochondria. However, many cells may have change their shape and structure so they are suited to carry out a particular job, these cells are called specialised cells, I’ve been. If you look carefully at especially if so, it’s super special features can provide clues about course it does
Nerve cell?
Nerve cells carry electrical impulses around your body. They are long and thin and have connections at each end where they can join to other nerve cells this allows them to transmit messages around the body
Red blood cell
Red blood cells transport oxygen around the body. They contain haemoglobin , Red pigment That joins to oxygen. Unlike most animal cells they have no nucleus they are also have a disc like shape. This increases the surface area for carrying oxygen.
How to plant cells differ?
Not all plant cells are the same cells of different parts of a plant or specialist to perform a job. The leaf cells are found near the top of the leaf and carry out photosynthesis. The layers of cells are long and thin and a pet with flower past. This means we have a lower surface area for absorbing energy is transferred from the Sun.
Can substances move into cells?
All the cells in your body need glucose (a substance gain from food) and oxygen for respiration. During respiration energy is transferred. Glucose and oxygen are carried around the body in the blood. Then they pass through pass into the cells that need to…
Can substances move out of cells? Some chemical reactions inside cells make waste products for example carbon dioxide is produced during respiration. It passes out of the salon into the blood. The blood truth and transports the carbon dioxide into the lungs were you breathe it out
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How does substances move in and out of cells?
Substances move in and out of cells by diffusion. Diffusion is the movement of particles from a place where they are in high concentration to a place with a low concentration. The concentration of a substance means that the number of particles of a substance prevent presence in their area.
Think about what happens when someone burns toast.. The particles that make up the smell of burnt toast move from place of high concentration (the kitchen) to one of the low concentration (the rest of the house). At first she may only be able to smell burnt toast in the kitchen. A short time later you may be able to smell the burnt toast in the living room. Diffusion continues until there is the same concentration of the particles everywhere.
