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Bio 104 Review (Intro, chem, bio molc, enzyme, cells) Flashcards | StudBud
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Bio 104 Review (Intro, chem, bio molc, enzyme, cells)
Bio 104 Review (Intro, chem, bio molc, enzyme, cells)
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Chap 1-4
Flashcards
86 cards
F
Practice quiz
P
Host live
L
Questions
86
Answers
1
Which is the largest level of organization?
Ecosystem
Biosphere
2
If a substance ends in ---ase it is probably what?
Enzyme
Carbohydrate
any protein
lipid
3
Why are the electrons not shared equally in water?
Oxygen is highly electronegative atom, it pulls elect to it
Hydrogen is electronegative
4
Iron is an example of a ....
Element
Compound
Ion
Isotope
5
Isotopes are...
Same element, but diff in number of neutrons
Same element, but diff in number of electrons
Neven a source of radiation damage
Not useful medically
6
You can gain knowledge via osmosis
False
True
7
You can use light microscopes to view a virus?
True
False
8
Hydrophobic refers to ....
Water fearing
Water loving
9
Science should not be published in peer reviewed journals
True
False
10
A component in a cell that carries out a specific function
Organelles
Cytosoup
Cytosol
Cytoplasm
11
Cholesterol is an example of....
Lipid
Protein
Carbohydrate
Nucleic Acid
12
How does the Chem. chapter related to the topic of Evolution?
Ocean acidification and natural section
Radiation as source of mutation
Radiometric decay is crucial for dating fossils, earth
All of the above
13
Which elements make up 96% of human body weight?
Oxygen, Calcium, Hydrogen, Carbon
Oxygen, Calcium, Hydrogen, Sodium
Oxygen, Nitrogen, Hydrogen, Carbon
Oxygen, Gold, Hydrogen, Carbon
14
Enzymes can be denatured by
Both
Temperature
pH
15
What part of an atom is involved in chemical reactions?
Nucleus
Electrons
Protons
Neutrons
16
How is a polar molc. like the North and South Poles?
They are cold
It has siding - Polar Opposites (δ- and δ+)
It is not
17
Data can prove a hypothesis true
True
False
18
Plant cells have
all of these
cell wall
chloroplasts
vacuole
19
What is the core theme of biology?
Science
Chemistry
Evolution
Dna -rna - protein
20
Define hydrophobic
Water fearing (water repelling)
Water loving (water attracting)
21
Acids solutions are what on the pH scale?
7
pH 0 - 6
pH 8 and above - 12
22
Adjacent water molecules are attracted to each other.....
Due to the Non-Polar Covalent bond between O and H
Due to the Polar Covalent bond between O and H
because water is hydrophobic
Because water molecules are ions
23
Active transport requires
ATP
Energy
Osmosis
Water
24
Why does Ice Float?
Frozen water is less dense than liquid water due to h-bonds
Frozen water contains helium
Frozen water is repelled by non-frozen water
Frozen water is more dense than liquid water due to h-bonds
25
Plants are
Heterotrophs
Autotrophs
26
Which of the following is a polysaccharides found in animals ?
Sucrose
Glycogen
Cellulose
Starch
27
An atom contains what?
Protons (+), Neutrons (no charge) and elections (-)
Protons (-), Neutrons (no charge) and elections (+)
Protons (+), and Neutrons (no charge)
Protons (+), Neutrons (-) and elections (-)
28
The tails of phospholipids are ......
hydrophilic
hydrophobic
29
Why do we refrain from the word "Prove" in a hyp based exp.
Nothing can be proven
All variables may not been accounted for in the study
30
Evolution is the core concept of biology
True
False
31
Viruses are alive
True
False
32
Active Transport, most importantly needs....
Money
Space
time
ATP
33
Atoms are likely to forms bonds when....
Electrons shells are full
Electrons shells are not full
34
Plant Vacuoles store
Energy
water
fiber
nothing
35
What type of cell is shown below?
Bacteria
Plant
Animal
Protist
36
Which atom makes up the bulk of living cells?
Oxygen
Sodium
Calcium
Sulfur
37
The dependent variable of an experiment comparing effect of oatmeal consumption on heart rate:
bowls of oatmeal consumed
heart rate
38
What type of cell does this cartoon model represent?
Eukaryotic animal
Eukaryotic plant
Prokaryotic animal
Prokaryotic plant
39
Endosymbiosis theory refers to what?
The origin of the Eukaryotic cell from prokaryotic ancestry
No idea....have not watched required videos on Blackboard
40
Why can some insects "walk" on water?
Neither is a good explanation
The hydrogen bonds are not broken
Both answers
They are light enough not to disrupt surface tension
41
Animals are .....
Eukaryotes
Prokaryotes
42
Lactase is ...
Enzyme
None of the above
For digesting milk sugar
Protein
43
Monomers of proteins are....
Nucleotides
Glucose
Amino acids
Lipids
44
Water is ..... molecule
Non-polar
Polar
45
Celery in salt water is in a .....solution?
Isotonic
Hypertonic
Hypotonic
46
Rough Endoplasmic reticulum has what ....that make it look rough under the electron microscope
Vacuoles
Flagella
Cilia
Ribosomes
47
How are you related to dinosaurs?
Same (recycled) atoms (conservation of matter)
Dinos are not eukaryotes, so we are not related
48
Enzymes ___ chemical reactions in the body.
slow down
speed up
49
Observing pillbugs (draw, basic measurements) before our experiment was...
Hypothesis based science
Discovery science
Theory based science
Applied science
50
Which is the correct sequence (small to large)
Subatomic particles, atoms, cells, molecules, individuals
Subatomic particles, atoms, molecules, cells, individuals
Atoms, Subatomic particles, cells, molecules, individuals
51
What do lysosomes do?
Make membrane
Cell respiration
Break down / recycle
Photosynthesis
52
ATP loses what when it undergoes work?
Respect
Phosphate
Cells
Adenosine
53
Ribosomes are found ....
In Bacteria only
In Eukaryotes only
In Prokaryotes and Eukaryotes
54
Why is polarity crucial for life?
Allows water to form Hydrogen bonds
All of the above
Without polarity, the water in the sea would freeze solid
Without polarity, there would be no water cycle
55
Which is a compound?
Gold
H20
N
O2
56
What does the cell wall provide for a prokaryotic cell and/or eukaryotic plant cell?
Support
Photosynthesis
Energy production
Storage
57
Everything can be tested with the scientific method
True
False
58
The smallest unit of life is
Cell
Organism
Atom
Ions
59
Diffusion move molecules from ____ to _____
High to low concentration
low to high concentration
60
Water has cohesion due to
Hydrogen bonds
Covalent bonds
Its ionic bonds
It’s neutral ph
61
pH 4 is ....
Neutral
Basic
Acidic
62
What is the value of many trials in a exp?
reduce likelihood of chance result
minimize uncontrolled variables
Both are correct
63
Which is smallest level of organization?
cell
population
organism
64
Cell Theory is a guess as to cell structure
True
False
65
A Water molecule contains what type of bond?
ionic
hydrogen
Polar covalent
non-polar covalent
66
Bacteria are ....
Prokaryotes
Eukaryotes
67
Glucose is a
Lipid
Nucleic acid
Protein
Carbohydrates
68
The monomers of a protein are called
lipids
amino acids
69
Plants are green because of
electrons
chlorophyll
it is a mystery
mitochondria
70
What is scientific theory?
the result/conclusion of your experiment
The best explanation based on a wealth of exp data
a guess
a hypothesis
71
Pick the largest level of organization
Population
Community
Ecosystem
Cell
72
Why is Carbon so essential?
It is very polar
It has only 4 electrons in the second shell
It has only 2 electrons in the second shell
73
RNA is an example of a
Carbohydrate
Nucleic Acid
Protein
Lipid
74
Hydrophobic molecules do/do not hydrogen bond with water?
DO
DO NOT
75
What is stored here? Hint: This purple picture is a nucleus.
Protein
RNA
Cytoplasm
DNA
76
Protons have a ...... charge?
Negative
Positive
Neutral
77
These types of organsims have cells that do not have membrane bound organelles.
Prokaryotes
Eukaryotes
78
What is biology? (best answer)
Scientific study of life
study of life
study of everything
study of reactions
79
Chemical reactions are governed by
Protons
Neutrons
Electrons
Ions
80
A theory is science is the same as a guess
False
True
81
ph of 7 is
Neutral
Acidic
Basic
82
Ribosomes are the site of ....
Vacuole production
Lipid synthesis
Digestion
Protein synthesis
83
NaCl (Sodium Chloride) contains what bond?
Polar Covalent
Hydrogen
Ionic
Non-Polar Covalent
84
Water has 4 essential properties crucial for life due to the presence of .....
Covalent bonds
Diamonds
Hydrogen bonds
Ionic bonds
85
What structure surrounds ALL cells?
Cell wall
Plasma membrane
Plasma wall
Cell capsule
86
Which is an example of a monomer
Protein
Glucose
Starch
DNA
