cells Flashcards

1
Q

what are the three parts of the cell theory?

A
  1. all living things are made up of cells.
  2. cells are the simplest units of living things.
  3. all cells come from existing cells through cell division.
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2
Q

What are prokaryotic cells?

A

bacteria that is missing a nucleus and any membrane organelle.

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3
Q

what are eukaryotic cells?

A

every other living thing that has a nucleus and all organelles.

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4
Q

what does unicellular mean?

A

single celled

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5
Q

what does multicellular mean?

A

more than one cell

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6
Q

what is an organelle?

A

Part of a cell that has a specific function in the cell

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7
Q

what is the cell membrane?

A

a structure in the cell that surround the cytoplasm and regulates what comes in and out of the cell

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8
Q

what is the cell wall?

A

a rigid structure that surround the cell membrane in the cell that gives the cell its shape and structure.

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9
Q

what is the nucleus?

A

an organelle in a eukaryotic cell that holds DNA, it is a large dark circle in cell, and it is the boss of cell

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10
Q

what is the nucleolus?

A

found inside the nucleus. it is the dark part of nucleus and it makes ribosomes.

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11
Q

what is a nucleoid?

A

a region where DNA is found in prokaryotes

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12
Q

What is the mitochondria?

A

it is the powerhouse of the cell which creates energy for the cell.

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13
Q

what is ribosomes?

A

an organelle in which protein synthesizes. they are little dots in the cell.

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14
Q

what is the golgi apparatus?

A

an organelle in the cell that deals with bigger things coming in and out of the cell

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15
Q

what is a lysosome?

A

cell organelle that breaks down stuff the cell doesn’t need.

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16
Q

what is the endoplasmic reticulum?

A

A cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another.

17
Q

rough ER

A

part of the ER that finishes protein synthesis

18
Q

smooth ER

A

part of the ER that synthesizes and breaks down lipids

19
Q

what is the chloroplasts?

A

organelle found in plant cells that carries out the process of photosynthesis

20
Q

what is the vacuole?

A

a sac inside a cell that is lined with membrane that stores cell materials

21
Q

what is the cytoplasm?

A

part of the cell that has everything except the nucleus.

22
Q

what is the cytosol?

A

fluid that fills the cells between organelles

23
Q

what is the cytoskeleton?

A

an organelle in which helps the cell maintain its shape

24
Q

what is the centrosome?

A

a region in the cell that organizes the microtubules for cell division and forms spindle fibers during cell division.

25
Q

what is the centriole?

A

organelle in the centrosome that helps to organize microtubules that serve as the cell’s skeletal system

26
Q

how did hooke/leuwenhoek/shleiden/shwann/virchow contribute to cell knowledge?

A

hooke- discovered dead cells
leuwenhoek- discovered living cells
shleiden- discovered all plants are made of cells
schwann- discovered all animal cells are made of cells
virchow- discovered all cells come from other cells

27
Q

what would happen if the mitochondria was removed?

A

the cell would lose energy then die.