Cells Flashcards

(38 cards)

1
Q

What are cells?

A

The structural unit of all living things

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2
Q

How many main regions does a cell have and what are they?

A

3 major regions.
Nucleus
Cytoplasm
Plasma Membrane

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3
Q

What does the nucleus do? What vital item does it contain?

A

Control center of the cell
Contains genetic makeup (DNA)

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4
Q

What are the three regions of the nucleus?

A

Nuclear Envelope
Nucleolus
Chromatin

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5
Q

What controls transportation of substances into/out of the cell?

A

Plasma Membrane

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6
Q

How many layers does the plasma membrane have?

A

Two. A bilateral phospholipid

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7
Q

What are the components of the plasma membrane?

A

Bilateral phospholipid,
Cholesterol (glue),
proteins (channels),
carbohydrates (sugar)

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8
Q

What is the space between the nucleus and the plasma membrane?

A

Cytoplasm

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9
Q

What are the three major components of cytoplasm?

A

Cytosol
Inclusions
Organelles

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10
Q

What is the liquid/jelly part of the cytoplasm?

A

The cytosol

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11
Q

What is considered the cells “pantry”? And why is it called that

A

Inclusions. They store nutrients or cell products and they float in the cytosol

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12
Q

Known as the metabolic machinery of the cell that performs its functions. Many are membrane bound

A

Organelles

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13
Q

What is the powerhouse of the cell?

A

Mitochondria. Powerhouse because it is where ATP is produced

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14
Q

How many layers does a mitochondria have? What is inside the inner layer?

A

Two layers. Inner layer has folds called “crista” or Cristae for plural

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15
Q

What organelle is made up of protein and rRNA?

A

Ribosomes

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16
Q

Where are ribosomes made and programmed?

A

In the nucleolus

17
Q

ATP

A

Adenosine TriPhosphate
Aka Energy

18
Q

Where are ribosomes found?

A

On the Rough Endoplasmic Reticulum , which make the ER appear “rough”
And also found free in the cytoplasm

19
Q

What do ribosomes do?

A

They are the cells site for Protein Synthesis. (Production of protein)

20
Q

Fluid Filled Tunnels that are continuous with the nuclear membrane

A

Endoplasmic Reticulum. Smooth (SER) and Rough (RER)

21
Q

Function of RER

A

Transportation of Chemicals (Proteins) WITHIN the cell

22
Q

“Home Depot” of the cell, which provides materials to repair cell damage

A

Smooth Endoplasmic Reticulum (SER)

23
Q

What controls the transportation that goes in and out of the cell ?

A

Plasma Membrane

24
Q

What is in charge of INTRACELLULAR transportation?

25
What is in charge of the EXTRACELLULAR transportation?
Golgi Aparatus
26
Flat Sacks located in between the ER and the membrane
Golgi Aparatus
27
Functions of Golgi
Quality Control Packaging of protein (vesicles) Transporting proteins OUT of the cell
28
Organelle that’s known as a membranous “bag” containing digestive enzymes
Lysosomes
29
What do Lysosomes do?
They destroy any invader with digestive enzymes. They also destroy unusable/worn out organelles
30
Apoptosis
Cell suicide
31
a Network of Protein structures that provide shape to the cell
Cytoskeleton
32
Centrioles
Rod shaped bodies , angled at 45 degrees, used in cell division
33
What do centrioles participate in?
Cell division
34
Spindle Fibers (Microtubules)
Created by centrioles and are used during cell division
35
What are the cell extensions that were covered?
Cillia Flagella Microvilli
36
Moves material across cell surface (short hairs)
Cillia
37
Long tail of cell that propels the cell. (Movement)
Flagella (multiple flagellum)
38
Tiny Fingerlike Extensions of the Plasma Membrane
Microvilli. They increase the surface area to also increase absorption