1 Flashcards
Three things proteins do
- 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
What do plants and animal cells have in common
All cells have
- DNA
- plasma membran
- ribosome’s
- cytoplasma
called the agent that causes kuru and scapie proton
stanley prusiner
Robert hook
Robert hook-first person to use the word cell to describe what living thing are made of
rudolph virchow
hypothesized all living things are made of cells
john snow
-went door to door to ask questions so he could figure out why ppl were dying of cholera water pump
discovered bacteria using a microscope that was barley more that a magnifying glass
antonie van leuwenhoek
deductive reasoning ; Hypothesis: women are are better at math than man are
If i give a math test to ru students the women will do better
theory is
an explanation
P stands for
Phosphorus
symbol for sodium
Na
Atomic# of manganese is 25 and atomic mass is 55 how many protons does it have
25
how many neutrons are in the nucleus of manganese #25 atomic mass 55
30
a nickel normally has 28 electrons is it has 27 it would make it a
ion
Ammonia contains a nitrogen and three hydrogens this makes it a
compound
This reaction- Glucose + fructose -> sucrose + h20 …. is a
dehydration reaction (pulls the h20 out of it)
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
cohesion
what kind of bond lets water to sick together
hydrogen bonds
compound ph is 8 it is
basic
human urine has a higher ph than beer. which has a larger concentration of hydrogen ions beer or urine
beer
if you exercise very hard your cells generate a lot of co2 by respiration, would your blood be more acidic or basic
acidic(more co2)
hydroxyl group?
O-H
carboxyl ?
C Double Bond to O and sbanded to a hydroxyl group(OH)
amino group
N single bounded 2 two H
Monomers of proteins
amino acids
which biomolecules doesn’t contain a polymer
lipids
nucleotides are the monomers of
DNA RNA
0.5 mm wide how many micrometers
500
250 um wide
milimeters .25
would you see a nucleus in a prokaryote
NOOO ITS A PROKARYOTE
is moss a prokaryote or eukaryote
Eukaryote
Main job of lysosomes
to break down worn out organelles and food from outside the cell
If you too out chloroplast how could you keep them alive
you would have to feed them
The atomic number of the element potassium is 19. It’s atomic mass is 39.
How many protons does it have in its nucleus
19 ATOMIC # is # of protons
The atomic number of the element potassium is 19. It’s atomic mass is 39.
How many neutrons does it have in its nucleus?
20 neutrons - Atomic weight-sum of protons and neutrons
Two atoms that share electrons are held together by a
covalent bond
Ions with opposite charges
Attract each other
Hydroxyl
group
hydrogen boned atom bonded to an oxygen atom
Carboxyl group
carbon double boned to an oxygen and a hydroxyl group(OH)
Amino group
nitrogen to two hydrogens
Phosphate group
P bounded to 4 Oxygen
Nucleotide
is a five carbon sugar, phosphate group, nitrogen base (adenine)
sugar chemical formula
C6 H12 O6
chemical formula for fatty
long hydrocarbon chain with carboxyl group
