1 Flashcards

1
Q

Three things proteins do

A
  • Most important role is being enzymes, them chemical catalyst that speed up and regulate reactions in cell
  • defensive proteins such as antibodies to help immune system fight off stuff
  • structural proteins found in hair and fibers make up connective tissue
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2
Q

What do plants and animal cells have in common

A

All cells have

  • DNA
  • plasma membran
  • ribosome’s
  • cytoplasma
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3
Q

called the agent that causes kuru and scapie proton

A

stanley prusiner

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4
Q

Robert hook

A

Robert hook-first person to use the word cell to describe what living thing are made of

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5
Q

rudolph virchow

A

hypothesized all living things are made of cells

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6
Q

john snow

A

-went door to door to ask questions so he could figure out why ppl were dying of cholera water pump

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7
Q

discovered bacteria using a microscope that was barley more that a magnifying glass

A

antonie van leuwenhoek

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8
Q

deductive reasoning ; Hypothesis: women are are better at math than man are

A

If i give a math test to ru students the women will do better

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9
Q

theory is

A

an explanation

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10
Q

P stands for

A

Phosphorus

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11
Q

symbol for sodium

A

Na

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12
Q

Atomic# of manganese is 25 and atomic mass is 55 how many protons does it have

A

25

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13
Q

how many neutrons are in the nucleus of manganese #25 atomic mass 55

A

30

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14
Q

a nickel normally has 28 electrons is it has 27 it would make it a

A

ion

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15
Q

Ammonia contains a nitrogen and three hydrogens this makes it a

A

compound

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16
Q

This reaction- Glucose + fructose -> sucrose + h20 …. is a

A

dehydration reaction (pulls the h20 out of it)

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17
Q

what do we call it when water sticks to other other water molecules enabling the plants to pull water out of the soil and into there leaves

A

cohesion

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18
Q

what kind of bond lets water to sick together

A

hydrogen bonds

19
Q

compound ph is 8 it is

A

basic

20
Q

human urine has a higher ph than beer. which has a larger concentration of hydrogen ions beer or urine

A

beer

21
Q

if you exercise very hard your cells generate a lot of co2 by respiration, would your blood be more acidic or basic

A

acidic(more co2)

22
Q

hydroxyl group?

A

O-H

23
Q

carboxyl ?

A

C Double Bond to O and sbanded to a hydroxyl group(OH)

24
Q

amino group

A

N single bounded 2 two H

25
Q

Monomers of proteins

A

amino acids

26
Q

which biomolecules doesn’t contain a polymer

A

lipids

27
Q

nucleotides are the monomers of

A

DNA RNA

28
Q

0.5 mm wide how many micrometers

A

500

29
Q

250 um wide

A

milimeters .25

30
Q

would you see a nucleus in a prokaryote

A

NOOO ITS A PROKARYOTE

31
Q

is moss a prokaryote or eukaryote

A

Eukaryote

32
Q

Main job of lysosomes

A

to break down worn out organelles and food from outside the cell

33
Q

If you too out chloroplast how could you keep them alive

A

you would have to feed them

34
Q

The atomic number of the element potassium is 19. It’s atomic mass is 39.
How many protons does it have in its nucleus

A

19 ATOMIC # is # of protons

35
Q

The atomic number of the element potassium is 19. It’s atomic mass is 39.
How many neutrons does it have in its nucleus?

A

20 neutrons - Atomic weight-sum of protons and neutrons

36
Q

Two atoms that share electrons are held together by a

A

covalent bond

37
Q

Ions with opposite charges

A

Attract each other

38
Q

Hydroxyl 


group

A

hydrogen boned atom bonded to an oxygen atom

39
Q

Carboxyl group

A

carbon double boned to an oxygen and a hydroxyl group(OH)

40
Q

Amino
 group

A

nitrogen to two hydrogens

41
Q

Phosphate group

A

P bounded to 4 Oxygen

42
Q

Nucleotide


A

is a five carbon sugar, phosphate group, nitrogen base (adenine)

43
Q

sugar chemical formula

A

C6 H12 O6

44
Q

chemical formula for fatty

A

long hydrocarbon chain with carboxyl group