Cells! Flashcards

1
Q

PH

A

Concentration of hydrogen ions

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2
Q

Acids

A

Solutes that add hydrogen ions

Proton donor

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3
Q

Base

A

Solutes that remove hydrogen ions

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4
Q

Buffers

A

Weak acids that help balance PH

Ex. Carbonic acid H2CO3

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5
Q

NaOH +HCl

A

NaCl + H2O

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6
Q

4 organic molecules found in humans

A

Carbohydrates, lipids, proteins, nucleic acids

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7
Q

Glycogen

A

Main way to store sugar in animals

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8
Q

Starch

A

Main way to store sugar in plants

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9
Q

Saturated fatty acids

A

Remain solid at room temp and have single covalent bond between carbon

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10
Q

Unsaturated fatty acids

A

Remain liquid, double covalent bonds between carbon

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11
Q

What is the function of fatty acids

A

Energy source, insulation, protection

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12
Q

Steroids

A

Cholesterol gives placidity to cell membrane and maintains shape

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13
Q

Phospholipid

A

All membranes are made of two layers
Hydrophilic heads
Hydrophobic tails

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14
Q

What is proteins most abundant source of energy

A

Nitrogen

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15
Q

All enzymes are

A

Proteins

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16
Q

All chemical reactions are regulated by what

A

Enzymes

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17
Q

Primary structure

A

Chain of acids

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18
Q

Secondary structure

A

Alpha forms spirals

beta forms pleats

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19
Q

Tertiary structure

A

Coiling and folding back onto themselves

20
Q

Quarternary structure

A

Looks like tertiary with more folding

Ex collagen and hemoglobin

21
Q

Cofactors

A

Ions or vitamins that bind to enzymes to make them functional

22
Q

DNA

A

Located exclusively in the nucleus and holds codes for proteins only

23
Q

RNA

A

Makes a copy of DNA and synthesizes proteins
Located in nucleus and cytoplasm
Single strand

24
Q

DNA

A

Holds our genetic code
Located only in the nucleus
2 stands

25
Q

What are the 3 types of RNA and where are the located

A

mRNA (messenger) synthesis in nucleus and comes out into cytoplasm
tRNA (transfer) cytoplasm
rRNA (ribosomal) cytoplasm

26
Q

Nitrogenous base pairing in DNA

A

Adenine- thymine

Guanine- cytosine

27
Q

Nitrogenous pairing with RNA

A

Adenine-uracil

Guanine- cytosine

28
Q

Exocytosis

A

The process of releasing a synthesized product

29
Q

Nucleus

A

Contains DNA

Function: genetic code

30
Q

ER

A

Protein synthesis in rough ER and protein modification

31
Q

Golgi apparatus

A

Transport and lipid synthesis

32
Q

Mitochondria

A

ATP synthesis

33
Q

Centrisome/ centrioles

A

Cell division

34
Q

Ribosomes

A

Protein making structures

35
Q

Cell membrane

A

Protection and semi permeability

36
Q

Villi

A

Increase surface area

37
Q

Cilia

A

Usually one or two

Function is movement

38
Q

Flagella

A

Just one, function is movement

39
Q

Cytoplasm

A

Jello like mass in cell

40
Q

Nucleoli

A

Most active part of nucleus

DNA is folded very tightly with help of histones

41
Q

Chromatin

A

DNA together with histones

42
Q

Chromosomes

A

Chromatin folded together

43
Q

Cytoskeleton

A

Microfilaments
Intermediate filaments
Microtubules
Structural proteins for shape and strength

44
Q

Cytoplasm

A

Intercellular fluid

High in potassium and low in sodium

45
Q

Transcription

A

The process of making mRNA using DNA as a template

46
Q

Translation

A

Process where proteins are synthesized using mRNA as a template in the cytoplasm