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K and M's Class > Biology > Flashcards

Biology Flashcards

1
Q

Meaning of plasmids

A

Controls few actions of the cell.

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2
Q

Plant cell contains

A 
Cell walls
Vacole 
Chloroplast
Cell membrane
nucleus 
Chloroplast
Mitochondra
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3
Q

Animal cells

A

Cell membrane
Nucleas
Chloroplasma
mitochondria

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4
Q

Specilised Cells

A

Cells are made and adapted to their specific. E.g sperm cells have long tails so they can swim and intestine cells have hairs on the end of them so that the cells suface area increase so they can grab more nutrients when the food goes past.

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5
Q

Meaning of osmosis

A

A membrane that allows some/small molecules through the cell and not others (semi-permeable membrane)

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6
Q

Why do cells need a semi-permeable membrane?

A

This is so that the cell can increase and decrease its water volume. also so that the cell can control its sugar levels amd other levels.

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7
Q

Meaning of enzymes

A

They break down substances

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8
Q

What is the lock and key model of enzymes?

A

Every enzymes are diffrent and they break down diffrent substances but they match the shape of the enzyme that breaks them down. (I can’t put a pic on here so if you are confused search it up)

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9
Q

Meaning of catalyst

A

A chemical that speeds up a reaction without

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10
Q

What is the optimum temperature for enzymes?

A

Around 40 degrees

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11
Q

What is the optimum Ph for enzymes?

A

Around 7Ph

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12
Q

What does optimum mean?

A

The best that the substance works at. Eg the enzymes work best at 40 degrees that is there optimum temp

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13
Q

Substrate Enzymes Products
Proteins
Carbohydrates
Lipids(Fats)

A

Enzymes Product
Protease Amino acids
Carbohydrase Sugar
Lipas Glucose/fatty acids

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14
Q

Solid to liquid

A

Melting

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15
Q

Liquid to gas

A

Evaporation

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16
Q

Gas to solid

A

Deposition

17
Q

Liquid to solid

A

Freezing

18
Q

Gas to liquid

A

Condensation

19
Q

Solid to gas

A

Subliming

20
Q

What are carbohydrates for?

A

They are for energy

21
Q

What are proteins for?

A

To build up muscle

22
Q

What are liquids/fats for?

A

Used for weight

23
Q

What are vitamins and minerals for?

A

To keep your body functioning

24
Q

What is fibre for?

A

To keep your digestive system clean

K and M's Class (11 decks)

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