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Science 8 > Science- Cells > Flashcards

Science- Cells Flashcards

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Biology 101 flashcards
1
Q

What does the cellular respiration process do?

A

Changes the energy we get when we eat our food into energy the cells use to carry out their activities.

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2
Q

What organelles do plant cells have but not animal cells?

A

Cell wall

Chloroplasts

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3
Q

What are cells?

A

The basic unit of life

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4
Q

What’s inside a cell?

A

Organelles and water

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5
Q

Cell membrane

A

A thin protective covering that separates the interior of the cell from its surroundings; also controls the movement of particles into and out of the cell

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6
Q

Cytoplasm

A

A jelly like substance inside the cell, containing organelles, water, and other life supporting materials.
Inherited genetic material in a cell not specified by its own nucleus

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7
Q

Nucleus

A

The organelle that controls all the activities within a cell

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8
Q

DNA

A

The heredity material that is passed on from generation to generation

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9
Q

Mitochondria

A

The energy producers that carry out cellular respiration to produce energy for the cells

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10
Q

What are the organelles for assembly, transport, and storage?

A 
Ribosomes
Golgi body
Vesicles
Vacuoles
Lysosomes
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11
Q

Ribosomes

A

Cells parts( organelles) that assemble ( makes, produces) proteins

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12
Q

Endoplasmic reticulum

A

A network of membrane covered channels that transport materials
(Rough ER- ribosomes,
Smooth ER- no ribosomes)

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13
Q

Golgi body

A

Sorts the proteins and packs them into membrane wrapped structures called vesicles

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14
Q

Vesicles

A

Smaller than vacuoles. Carries proteins, nutrients and water into, out of, and around the cell

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15
Q

Vacuoles

A

Temporary storage compartments that sometimes store wastes. In plant cells, bigger, because they need to store more water, to feed the plant.

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16
Q

Lysosomes

A

A cell structure that contains digestive chemicals that break down food particles, cell wastes, and worn out cell parts

17
Q

Cell wall

A

A tough, rigid structure that surrounds and protects a plant cell and gives the cell its rectangular, box like shape

18
Q

Cell theory

A

One of the main ideas of modern biology.
Living things are made up of cells.
The cell is the basic unit of life.
All cells cons from the division of pre-existing cells.

19
Q

5 characteristics of living things

A 
Respond to their environment
Need energy
Grow
Reproduce
Get rid of wastes
20
Q

Magnifying lens
Compound light
Electron microscope

A

Simple microscope
More than one lens
Images scanning microscope=image of surface of living thing

21
Q

Nucleolus

A

The DNA in the nucleus.

RNA= the message sent out by the DNA

22
Q

Chloroplasts

A 
Parts of the plant cell that trap energy fro the sun and change it into chemical energy that plants use. 
Makes sugar( carbohydrates)
Inside: chlorophyll
23
Q

Centrioles

A

Splits the cell into two parts

24
Q

Many…?

A

Shapes and sizes
Nerve cell: long with flower one side and fish tail other.
Muscle cell: eye
Skin cell: marble

25
Q

Cells are?

A

Microscopic

26
Q

We have…cells

A

More than 100 trillion

27
Q

Each square cm of skin contains…

A

About 150000 skin cells

28
Q

Definition of organisms

A

A living thing that can survive independently

- organism is successful if it can live long enough to reproduce

29
Q

Prokaryotic cells

A

Cells that aren’t surrounded by membranes

30
Q

Eukaryotic cells

A

Cells that are surrounded by a cell membrane

31
Q

Bactria can cause

A

Diseases

32
Q

Viruses are

A

Non living things

33
Q

Bacteria is and example of

A

Prokaryotic cells

34
Q

Organelle

A

A cell structure, or parts of the cell that have different jobs, and functions, and do different activities to ensure the cell’s survival.

Science 8 (9 decks)

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