Slide set 1 Flashcards

(34 cards)

1
Q

How old is Earth?

A

4.5 Billion Years old

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2
Q

How old is life?

A

3.7 Billion years old

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3
Q

Characteristics or behaviors that arise from interactions of simpler components within a system?

A

Properties of Life

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4
Q

Organization, metabolism, growth, stimulation, reproduction, and adaptability are all?

A

Traits/properties of life

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5
Q

Atom>Molecule>Organelle>Cell>Tissue>Organ>Organism>Population>Ecosystem>Biosphere is the>

A

Hierarchical order of complexity

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6
Q

What falls into the category of an organism?

A

An assembly of molecules functioning as a stable whole that exhibits life (Multi and Unicellular)

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7
Q

Antonie Van Leeuwenhoek

A

First person to create a microscope and observe an organism

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8
Q

Robert Hooke

A

First person to use a microscope to observe living things. He discovered the cell

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9
Q

What are the 3 principals of the cell theory?

A
  1. composed of 1 or more cells
  2. The cell is the basic structural and functional unit of all living things
  3. Cells arise only from the division of preexisting cells
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10
Q

As the basic structural and functional units of all living organisms, cells carry out all the ___?

A

essential processes of life

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11
Q

Cells are the basic ____ and ___ units of all living organisms

A

Functional and Structural

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12
Q

All cells have ___, ____, and ____

A

Plasma membranes, Nucleic acids, and Ribosomes

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13
Q

T/F All cells have a DNA containing central region?

A

True

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14
Q

The DNA containing central region is surrounded by the ___?

A

Cytoplasm

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15
Q

____ and ____ carry hereditary information and direct the manufacture of cellular molecules

A

DNA and RNA

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16
Q

Cells use __, respond to ___ in their environment, Reproduce, and pass on _____ information?

A

Energy, environment, and hereditary

17
Q

Cells occur in ___ (anucleated) and ___ (nucleated) forms, each with distinctive structures and organization

A

Prokaryotic and Eukaryotic

18
Q

Prokaryotic cells lack a ___ and have no _____

A

Nucleus and no internal compartmentalization

19
Q

Pro/Euk Nucleus?

A

Prokaryotes-No (nucleoid region)
Eukaryotes- Yes

20
Q

Pro/Euk transcription location

A

Prokaryotes-Cytoplasm
Eukaryotes-Nucleus

21
Q

Pro/Euk Translation Location

A

Both Cytoplasm

22
Q

Pro/Euk Cell membrane additions?

A

Prokaryotes-Hopanoids
Eukaryotes- Sterols (Cholesterol)

23
Q

Pro/Euk Size?

A

Prokaryotes-small
Eukaryotes-Larger

24
Q

Unicellular organisms carry out ____?

A

All activities necessary for life

25
Multicellular organisms ____ necessary activitys for life to _____
divide, specialized cells
26
3 types of light used in microscopes?
Reflected, transmitted, and fluorescence
27
2 types of electron microscopes?
Transmission (TEM) and Scanning (SEM)
28
Resolution is?
Clarity of the image. minimum distance that two point can be separated and still seen as two points
29
Magnification is?
The ratio between and objects image to its real size
30
Resolution depends on the _____ of light or electrons?
Wavelength
31
4 types of Light microscopes?
Confocal, fluorescence, Differential Interference Contrast Microscopy (DIC), and Bright field Microscopy
32
2 types of Electron microscopes?
Transmissions electron microscopy (TEM) and Scanning electron microscopy (SEM)
33
Cells are limited in size due to the demands for __ and ___ as well as protein synthesis needs
Nutrient and gas exchange
34
Which statement is part of the Cell Theory? A) All organisms are made of molecules B) Cells arise only from the division of preexisting cells C) Cells are always visible to the naked eye D) All cells contain a nucleus
B