Cells Flashcards

1
Q

Prokaryote

A

Simplest, most ancient-bacteria and archaea
Smaller than eukaryote
No nucleus

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2
Q

Cell wall

A

Helps maintain shape

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3
Q

Capsule

A

Enables cell to attach to surfaces in environment. Literally think of a pill capsule.

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4
Q

Fimbraie

A

Helps attach to host. Little hairs on outside.

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5
Q

Eukaryote

A

Larger than prokaryote, more complex
Membrane bound nucleus and organelles
Animal cells, plant, fungi and protists

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6
Q

What do prokaryotes and eukaryotes have in common

A

DNA, ribosomes, cytoplasm, plasma membrane

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7
Q

In prokaryote cells:

Plasma membrane

A

Outer covering separating cells interior from surrounding environment

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8
Q

In prokaryote cells:

Cytoplasm

A

Consists of jelly like cytosol , contains other cellular components.

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9
Q

In prokaryote cells:

DNA

A

Cells genetic material

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10
Q

In prokaryote cells:

Ribosomes

A

Synthesize proteins

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11
Q

In eukaryote cells:

Plasma membrane

A

Phospholipid bilayer w/ embedded proteins.

Separates the internal contents from environment.

Controls entry and exit of molecules.

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12
Q

In eukaryote cells:

Phospholipid

A

Lipid molecule with 2 fatty acid chains and a phosphate containing group

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13
Q

In eukaryote cells:

Cytoplasm

A

Entire region between plasma membrane and nuclear envelope

Semi solid consistency. 70-80% water.

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14
Q

In eukaryote cells:

Nucleus

A

Houses the cells DNA, directs the synthesis of ribosomes and proteins

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15
Q

In eukaryote cells:

Nuclear envelope

A

Double-membrane structure that has pores-controls passage of ions, molecules, and RNA

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16
Q

In eukaryote cells:

Nucleoplasm

A

Semi solid fluid inside nucleus. Houses chromatin and nucleolus.

17
Q

In eukaryote cells:

Chromosome

A

Structures within the nucleus
Made up of dna
Only visible and distinguishable from each other when the cell is getting ready to divide

18
Q

Chromatin

A

When the cell is at the grow and maintain phase of life, proteins attach to the chromosomes resembling unwound bunch of threads.

19
Q

In eukaryote cells:

Nucleolus

A

Combines RNA with proteins and sends them thru nuclear envelope to cytoplasm

20
Q

In eukaryote cells:

Ribosomes

A

Responsible for protein synthesis.
May float freely or be attached to the endoplasmic reticulum and nuclear envelopes outer membrane.

Gets orders from nucleus in the form of messenger RNA.

21
Q

In eukaryote cells:

Mitochondria

A
Powerhouse 
Make ATP (adenosine triphosphate)

Oval shaped double membrane organelles

Have their own ribosomes and DNA

22
Q

Cellular respiration

A

The process of making ATP using chemical energy in glucose and other nutrients

23
Q

In eukaryote cells:

Perioxisomes

A

Single membrane
Carry out oxidation reactions that break down fatty acids
Detoxify poisons
Reactions release hydrogen peroxide (H2O2) which is broken down into oxygen and water in perioxomes.

24
Q

In eukaryote cells:

Centrosome

A

Animal cells have

Microtubule organizing center near nuclei

25
Q

In eukaryote cells:

Lysosome

A

Animal cells have

Garbage disposal

26
Q

In eukaryote cells:

Cell wall

A

Protects cell

Plant - cellulose
Fungi-chitin

27
Q

In eukaryote cells:

Chloroplasts

A

Organelles that carry out photosynthesis

Have their own DNA and ribosomes

28
Q

In eukaryote cells:

Central vacuole

A

Regulates cells concentration of water in changing environmental conditions.

Supports cell expansion, provides added support.