Cells Flashcards

0
Q

Ribosomes

A

Produce protein.
Rrna- protein complex
Mrna- messenger
tRNA- transfer

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1
Q

Nucleus

A

Command center of the cell. Where DNA is located

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2
Q

Phospholipid

A

Surround a cell for structure and protection. Has a hydrophilic head and hydrophobic tail that form a phospholipid bilayer. This layer makes up cell membrane.

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3
Q

Cell membrane

A

Outer layer. Nothing goes in nothing comes out.

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4
Q

Prokaryotic cells

A

Cell of a bacteria. Simplest organism
. No nucleus
. Has a cell wall and ribosomes

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5
Q

Two domains of prokaryotes

A

Archaea- bacteria that can live in extremely hot or cold blames

Bacteria

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6
Q

Cell wall

A

Only in plants and bacteria. Composed of peptidoglycan.
Protect the cell.
Maintain the shape.
Prevent excessive uptake or loss of water.

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7
Q

Flagella

A

Used for locomotion. Only eukaryotic cell with flagella is sperm.

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8
Q

Eukaryotic cells

A

Have a nucleus.

Process a cytoskeleton to maintain structure

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9
Q

Endomembrane system

A

Series of membranes throughout the cytoplasm.
Divides cell into compartments where diff functions occur
One of the fundamental distinctions between eukaryotes and prokaryotes

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10
Q

Rough endoplasmic reticulum

A

Has ribosomes attached to give rough appearance. Synthesis of proteins to be packaged and sent to plasma membrane or lysosomes.

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11
Q

Smooth endoplasmic reticulum

A

Used for synthesis, enzymes and lipids, and detox

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12
Q

Golgi apparatus

A

Flattened sacks of interconnected membranes.

Packages and distributes synthesized molecules.

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13
Q

Lysosomes

A

Membrane bound digestive vesicles. Also gets rid of waste.
Arise from Golgi apparatus.
Enzyme catalyze breakdown of macromolecules

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14
Q

Vacuoles

A

Membrane bound structures in plants

  • used for storage
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15
Q

Micro bodies

A

Variety of enzyme bearing, membrane enclosed vesicles.

16
Q

Peroxisomes

A

Contains enzymes involved in the oxidation of fatty acids.

17
Q

Mitochondria

A

In all eukaryotic cells

Release energy. Aerobic respiration occurs here.

18
Q

Chloroplasts

A

Organelles present in cells of plants

Contain chlorophyll for photosynthesis

19
Q

Thakoids

A

Photosynthetic membranes that hold pigments

20
Q

Cytoskeleton

A

Network of protein fibers found in all eukaryotic cells. Supports shape of cell. Keep organelles in fixed location

21
Q

Microfilaments

A

Helps cell move by contraction of crawling

22
Q

Microtubles

A

Facilitate movement of cell materials within cell

23
Q

Nucleolus

A

Region where ribosomal rna synthesis takes place

24
Q

Centrosomes

A

Assemble Microtubles out of protein. Holds things together