Cells, Tissues And Organs Flashcards

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0
Q

What is differentiation?

A

The process of cells becoming specialised.

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1
Q

Where are stem cells found?

A

In animal zygotes (very young embryos) and in plants of all ages.

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2
Q

Describe differentiation in plant and animal cells.

A

Animals cells differentiate at an early stage. They become specialised for a particular function and cannot change into different types of cells. Differentiation is mainly for replacement and repair.
Plant cells keep the ability to differentiate after having done so once.

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3
Q

Name some specialised cells.

A

Sperm, egg, palisade, cilated, root hair, nerve, red blood.

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4
Q

What is tissue?

A

A group of specialised cells with a similar structure and function all working together.

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5
Q

What are the four main kinds of animal tissue?

A

Epithelial, connective, nerve and muscle

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6
Q

What are organs?

A

Tissue that work together to perform a larger function. Leaves and the heart are both organs.

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7
Q

What are organ systems?

A

Organs working together, such as the circulatory system, the nervous system and the digestive system.

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