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Single Award Science > Biology Chapter 2 Cells > Flashcards

Biology Chapter 2 Cells Flashcards

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Biology 101 flashcards
1
Q

What are the main parts of an animal cell

A

Nucleus, cytoplasm, cell membrane

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2
Q

What are the main parts of a plant cell

A

Nucleus, cytoplasm, cell membrane, chloroplasts, cell wall and vacuole

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3
Q

What is the function of the nucleus

A

Contains genetic information on chromosomes
controls cell activities

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4
Q

What is the function of the cell membrane

A

Allows materials into and out of cell - is selectively permeable

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5
Q

What is the function of the cytoplasm

A

Site for chemical reactions

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6
Q

What is the function of chloroplasts

A

contain chlorophyll
absorb light and make food in photosynthesis

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7
Q

What is the function of cell wall

A

Support
Made of cellulose

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8
Q

What is the function of vacuole

A

Contains cell sap
provide support

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9
Q

How do you make a slide of onion cells

A

Thin section of onion tissue and place on slide
add drop of iodine
Slowly lower cover slip so no air bubbles form
Place on stage
Use lowest objective lens to get wider field of view
Focus using Coarse and Fine focusing knob

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10
Q

What is the stain used for cheek cells/animal cells

A

Methylene blue

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11
Q

Why are stains used when preparing slides of cells

A

Makes it easier to see parts of the cell

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12
Q

What is a tissue

A

Made up of similar cells that do a particular function eg muscle cells make muscle tissue

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13
Q

What is an organ

A

Made up of different tissues that do a particular function eg heart made up of muscle, blood and nervous tissue

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14
Q

What is an organ system

A

Made up of different organs that do a particular function eg circulatory system made up of heart, blood and blood vessels

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15
Q

What are stem cells

A

Simple cells that have the ability to divide into cells of the same type

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16
Q

What 3 places can stem cells be found in animals

A

Embryo
Umbilical cord
Bone marrow

17
Q

Where can stem cells be found in plants

A

In shoot and root tips

18
Q

What can stem cells be used to treat

A

Leukaemia

19
Q

IN the pretreatment of leukaemia the person is treated with chemotherapy and radiotherapy - why

A

To kill cancer cells before bone marrow transplant

20
Q

What are the concerns with stem cell treatments

A

May cause other cancers to develop
May transfer viruses or disease to person

Single Award Science (8 decks)

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