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20 Cards in this Set
- Front
- Back
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What is a cell |
The building blocks of life |
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What is a tissue |
Group of cells together to perform a specific function |
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What is and organ |
Groups of different tissues which work together to form a functioning unit |
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What is an organ system |
Series of organs working together |
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What is an organism |
Organs and organ systsems working. Together to make an individual |
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What are the main features of cilated cells |
They have cillia to push the mucus They have a nucleus and cytoplasm |
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Where is mucus made |
Goblet cells |
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What is the function of muscle cells |
To contact to bring about movement |
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What allows muscle cells to contract |
They are elongated and they have protein fibres |
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What makes RBC adapt for carrying oxygen to the body |
It has a bin concave shape to increase surface area No nucleus to maximize the amount of haemoglobin They are small and can fit in small capillaries |
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Nerve cells have long cytoplasmic extensions called_________ which carry messages as electrical impulses. |
Nerve fibres |
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What insulates the nerve fibres so that they send signals faster |
Myelin sheath |
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Nerve cells also have a c______b_______ which contains the ___________ |
Cell body Nucleus |
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Sex cells only contain __________ set of chromosomes |
Half |
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When sex cells combine they make and organism with a _________ of chromosomes |
Full set |
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What features does a sperm cell have and what are their functions |
It has a tail for swimming Nucleus which contains half set of chromosomes It has a head And it has many mitochondria to provide energy for swimming |
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What features does an egg cell have and what are their functions |
It has a lot of cytoplasm to provide space for organelles and to store nutrients It has a nucleus which contains half set of chromosomes It has a protective jelly layer And it has a cell membrane |
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What are the main features of root hair cells |
They have cytoplasm The have a long extension to increase Surface area They have a nucleus They have a vacoule |
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What are xylem vessels used for |
To transport mineral salts and water And to provide support |
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Xylem vessels have walls made of __________ which makes the cell wall ____________. The contents in between the walls die and this leads to effecient transport of __________________ because it is now hollow |
Ligin Impermeable Water and minerals |
