Cell Structure And Function Flashcards

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1
Q

What is a cell wall?

A

Dead layer that provides support, structure and protection to bacteria and plant cells

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2
Q

What is cell membrane

A

A thin flexible layer which regulates movement of material into and out of the cell

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3
Q

What is cytoplasm

A

A gel like substance composed primarily of water

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4
Q

What’s a chromatin

A

Contains DNA proteins which have been condensed. It’s found in non dividing cells and is the form of DNA used for protein synthesis

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5
Q

What are chromosomes

A

They form after DNA replication, only found in dividing cells. Protein synthesis can not occur when the DNA takes this form

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6
Q

What is cilia

A

Short hair like vibrating cellular projections, they are found in large numbers on the surface of certain cells

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7
Q

What is flagella

A

Slender hair like structures which enable some microorganism

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8
Q

What are centrioles

A

Rod like structures that help during cell division

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9
Q

What is the cytoskeleton

A

Protein fibers which make up the cells skeleton and moves organelles and vesicles throughout the cytoplasm

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10
Q

What are Organelles

A

Organelles are sub cellular structure that have one or more specific jobs to preform In the cell

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11
Q

The function of a ribosome?

A

The site of protein synthesis. Made of ribosomal RNA and proteins

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12
Q

Nucleus

A

Stores genetic material and controls cellular activities

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13
Q

Nucleolus

A

Produces ribosomal RNA

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14
Q

Rough Endoplasmic reticulum

A

Holds ribosome that produce proteins. It’s also stores and transfers protein around the cell

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15
Q

Smooth endoplasmic recticulum

A

Functions in lipid manufacturing, detoxification and the production of steroid hormones.

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16
Q

Golgi body

A

Functions as a factory in which proteins received from the ER are processed and sorted for transport to their eventual destinations

17
Q

Chloroplasts

A

Produce energy through photosynthesis

18
Q

Mitochondria

A

Is the cite of cellular respiration

19
Q

Vacuoles

A

Are small membrane bound sacs which store enzymes,nutrients and water

20
Q

Vesicles

A

small membrane bound sacs used for the transport export and storage of molecules

21
Q

Lysosome

A

Spherical vesicles which contain hydrolytic enzymes that can break down all kinds of biological molecules