THE CELL

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1

Folds

________ are made in the inner membrane to enhance the surface area available for energy release.

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2

short branches

Each cell has what are called dendrites, which are ________, and an axon, which is a long "wire ..

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3

Dendrites

________ are responsible for receiving nerve impulses.

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4

cells

Certain ________ in the body have specialized structures that protrude from their surface.

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5

lipid droplets

Adipocytes, which are the primary kind of adipose cell, are large and packed to the brim with ________, which are responsible for the storage of energy.

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6

regular intervals

The phospholipids are arranged in a pattern that is broken up at ________ by protein molecules and chains of carbohydrates.

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7

movement of materials

There are three different processes that can be responsible for the ________ through the cell membrane.

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8

Phospholipid molecules

________ form a double layer that serves as the fundamental structural element of this membrane.

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9

Organelles

________ are the structures that may be found within a cell; each ________ has its own unique size, shape, and function.

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10

succession of ER

In most cases, a single continuous labyrinthine space is enclosed by a(n) ________ membranes that are heavily folded and curled.

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11

smooth muscle

The enormous, spindle- shaped cells that make up ________ contract by sliding strands of protein along the interior of the cell.

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12

sperm

Each ________ has a head that is responsible for transporting the genetic material of the father, and a whip- like tail that is used for movement.

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13

particular molecule

After changing its shape and releasing the molecule into the cell, a carrier protein first connects with a(n) ________ that is located outside of the cell.

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14

human sperm

The ________ are the only cells in the human body that have a lengthy flagellum that looks like a whip and is employed for propulsion.

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15

human sperm cell

The ________ has a slender tail, known as a flagellum, that extends from it.

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16

Neurons

(nerve cells) and muscle fiber cells (myofibers) are two examples of highly specialized cells that can grow to be more than 30 centimeters (more than 12 inches) in length.

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17

Organelles

are the structures that may be found within a cell; each organelle has its own unique size, shape, and function.

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18

interior

The _ of the cell is very well organized, with compartments that are connected to one another by sheets and membranes.

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19

skeleton

These compartments are held in place by a flexible "_" that is made up of even smaller tubules and filaments.

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20

starter

Stem cells are "_" cells that are not specialized but have the potential to develop into specialized cells.

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21

Stem cells

in an embryo have the potential to differentiate into any of the body's more than 200 different types of specialized cells

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22

Epithelial cells

These cells are responsible for the formation of skin, as well as the covering of most organs and the lining of hollow cavities, such as the digestive tract.

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23

Photoreceptor cell

In the retina of the eye is a type of cell that is sensitive to both light and color called a cone cell.

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24

red cell

also known as an erythrocyte, is essentially a sack filled with oxygen-carrying hemoglobin molecules.

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25

Adipocytes

which are the primary kind of adipose cell, are large and packed to the brim with lipid droplets, which are responsible for the storage of energy.

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26

Smooth muscle cell

The enormous, spindle-shaped cells that make up smooth muscle contract by sliding strands of protein along the interior of the cell.

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27

Nerve cell

Each cell has what are called dendrites, which are short branches, and an axon, which is a long "wire."

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28

Sperm cell

Each sperm has a head that is responsible for transporting the genetic material of the father, and a whip-like tail that is used for movement.

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29

Ovum (egg) cell

These enormous cells hold the genetic material from the mother as well as the energy supplies necessary for the embryo to begin its first cell divisions.

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