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Campanie > Tommy Science - Cells > Flashcards

Tommy Science - Cells Flashcards

1
Q

What is a cell?

A

The smallest unit of life

Microscopic

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2
Q

Who is made up of cells?

A

Some animals are made up of one cell

Others are made of trillions and trillions of cells

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3
Q

What are the basic needs of cells?

A 
Take in oxygen
Make food
Remove waste 
Respond to change in environment 
Grow
Reproduce
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4
Q

Cell parts

A

Cells are made up of different parts, each part has job to do

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5
Q

What is the cell membranes job?

A 
It is like a skin of a cell
All cells have one
Protects cell
Lets in oxygen and water 
Allows waste materials to leave
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6
Q

What is mitochondria ?

A

Combines oxygen and food to make energy

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7
Q

What are the vacuoles?

A

Stores and breaks down materials

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8
Q

What is the nucleus?

A

Controls center of the cell

Inside our chromosomes

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9
Q

What are chromosomes?

A

Instructions for the cell ( what the cells job is/ how to do it) blue prints

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10
Q

What is DNA?

A

Shaped like double helix ( twisted ladder)

Chemical molecules that make chromosomes

46 chromosomes in people (23 from mom 23 from dad)

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11
Q

Genes

A

In chromosome and part of DNA

Include info. that makes us who we are - traits of hair and eye color, height, curly hair)

You have 50,000 different genes

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12
Q

What is an organ system?

A

Is two or more organs that work together to help your body perform an important job

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13
Q

What are organs made of?

A

Tissue

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14
Q

What are tissues made of

A

Cells

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15
Q

Two examples of organ systems

A

Nervous and skeletal systems

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16
Q

What is the skeletal system’s Jon and how it helps the body function?

A

A skeletal system is a major organ system in the human body. It is made out of 206 bones. It provides a frame for all the muscles, protects internal organs and allows us to move around

17
Q

What are the four different types of cells

A

Muscle
Bone
Hair
Nail

18
Q

What are neurons?

A

Are cells that make up the nervous system

19
Q

What is the neurons job?

A

Relay information from brain to body and body to brain

20
Q

Want are the three parts of a neuron?

A

Dendrites
Cell body
Axon

21
Q

What is the job of the red blood cell

A

To carry oxygen through the body

22
Q

How are red blood cells shaped?

A

Round cells

23
Q

Ways the shape of red blood cells help it to do it’s job

A

Little indentations create more surface area so it can carry more oxygen

Smoothness allows them to glide easily through the blood vessels

24
Q

What is tissue

A

A bunch of non visible cells that are formed together to be visible so that they can do a job

Campanie (23 decks)

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