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humphy, lec > Lesson 1D > Flashcards

Lesson 1D Flashcards

1
Q

‘all plants are composed of cells’ , german botanist

A

Matthias Schleiden

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2
Q

Discovered that animals are made of cells

A

Theodor Schwann

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3
Q

German Pathologist discovered that are humans are made up of cells

A

Rudolf Virchow

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4
Q

combined work of schleiden, schwann and virchow

A

Cell Theory

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5
Q

The Cell Theory states that:

A
  1. All living things are composed of a cell or cells.
  2. Cells are the basic unit of life
  3. All cells come from preexisting cells
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6
Q

The 3 main region of cell

A

-Nucleus
-Plasma Membrane
-Cytoplasm

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7
Q

4 elements that composed the cells

A

-Carbon
-Hydrogen
-Oxygen
-Nitrogen

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8
Q

How many percent of water is the cell?

A

60-80%

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9
Q

The control center of the cell

A

Nucleus

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10
Q

3 regions of nucleus

A

-nuclear membrane
-nucleolus
-chromatin

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11
Q

Barrier of nucleus

A

Nuclear Membrane

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12
Q

a non-membrane bound organelle taking part in synthesis of ribosomes, including processing of rRNA and the assembly of them into ribosomes subunits

A

Nucleoli

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13
Q

Composed of DNA and proteins

A

Chromatin

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14
Q

Barrier for cell contents, doubke phospolipid layer

A

Plasma membrane

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15
Q

Finger-like projections that increase surface area for absorption

A

Microvilli

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16
Q

Material outside nucleus and inside the plasma mebrane

A

Cytoplasm

17
Q

Made of protein and RNA and attached to rough endoplasmic reticulum

A

Ribosomes

18
Q

Modifies and packages proteins

A

Golgi Apparatus

19
Q

Maintains cell shape

A

Cytoskeleton

20
Q

Rod-shaped bodies made of microtubules

A

Centrioles

21
Q

the means by which substances get through plasma membrane

A

Membrane transport

22
Q

What are the functions of membrane transport?

A

-cell reproduction
-protein synthesis

23
Q

The double phospolipid layers

A

Hydrophilic heads
Hydrophobic tails

24
Q

Homogeneous mixture of two or more components

A

Solution

25
Q

Components in smaller quantities within the solution

A

Solutes

26
Q

Dissolving medium; typically water in the body

A

Solvent

27
Q

Contains water, dissolved solutes, and suspended particles

A

Intracellular fluid

28
Q

Solution that bathes the exterior of our cell and contains thousands of nutrients

A

Interstitial Fluid

29
Q

Fluid outside the cells

A

Extracellular Fluid

30
Q

From high to low concentration

A

Diffusion

31
Q

What are the factors that influenced diffusion?

A

-steepness of the concentration gradient
-temperature
-mass of the diffusing substances
-surface area
-diffusion distance

32
Q

simple diffusion of water

A

Osmosis

humphy, lec (6 decks)

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