Which of the following is an observation?

You record the air twmperature every day for a week

A chemical reaction is a process be which atoms or groups of atoms in substances are

reorganized into different substances

Which topic falls under the study of biology?

the digestive system of an earthworm

Which activity is an example of the human body striving tp maintain homeostasis?

producing sweat to reduce body temperature

Which of the following is a function of the cell membrane?

regulates which materials enter and leave the cell

Diffusion is the movement of molecules from

an area of high concentraition to an area low concentration

How does an enzyme influnce a biologist reaction?

It decreases the activion energy necessary to initiate the chemical change.

What is the basis of the metric measurement system?

Its measures are based on divisions that are powers of ten

When light strikes chlorophyll, they lose electrons, which are ultimately replaced by which of the follwing?

splitting water into 2H+ and 02

Which best descibes the purpose of science?

to explain the nature of things

When added to water, how does an acid affect the pH and H+ concentration?

The pH decreases while the H+ increases

Which defines a cell?

the basic unit of living things

What are the three parts of an ATP molecules?

adenine, ribose, phosphate groups

studbud

Mrs. Keith's Midterm Study Guide

98 termsStudBud Administration28 plays

This is for Mrs. Keith's Honors Bio

Flashcards98 cardsFPractice quizPHost liveL

Questions 98

Answers

1
Which is the best example of a solution?
saltwater
paint
milk
blood
2
Which of the following is an observation?
You record the air twmperature every day for a week
You hypothesize that the temperature will increase tomorrow
You propose that a cold front is approaching
You conclude that the season is changing
3
Which organelle would you expect to find in a plant cells but not in animal cells?
chloroplast
ribosome
smooth er
mitochondrion
4
Who concluded that all plants are made of living cells?
Schwann
Schleiden
Hooke
Virchow
5
The cell membrane contains channels and pumps that help transport materials. What are these channesl and pumps?
proteins
carbohydrates
bilipids
lipids
6
A catalyst is also called _____.
Inorganic Compound
antibody
Enzyme
Ion
7
A chemical reaction is a process be which atoms or groups of atoms in substances are
dissolved in other substances
reorganized into different substances
mixed together with atoms in other substances
ionized by the loss of protons
8
Which element is found in proteins but not in carbohydrates or lipids?
Hydrogen (H)
Oxygen (O)
Carbon (C)
Nitrogen (N)
9
You suspect that a chemical is strongly acidic. What might be its pH?
11
7
2
14
10
Glycogen, a sugar, is an example of which types of molecules?
Saturated fatty acid
steriod
Protein
Carbohydrates
11
Which organelle is large in plant cells but small or absent in animal cells?
nucleolus
chloroplast
vacuole
centriole
12
Which molecule results from the final step of the Calvin cycle?
COA
RuTP
GP3
RuBP
13
Which topic falls under the study of biology?
rocks foung in a riverbed
the digestive system of an earthworm
the makeup of the atmosphere
the chemicals in fuel
14
Which activity is an example of the human body striving tp maintain homeostasis?
creating thoughts to solve a difficult problem
sprinting across the street to aviod oncoming traffic
producing sweat to reduce body temperature
digesting foods to redice their particle size
15
The stroma is the region outside the
thylakiods
chloroplasts
plant cells
all of the above
16
Which is part of the International System of Units (SI)?
inch
gallon
pound
meter
17
What is produced by reactions that taake place in the thylakioods and are consumed by reactions in the stroma?
ATP and NADPH
carbon dioxide and ATP
carbon dioxide and water
ATP and Oxygen
18
Most plants appear green because chlorophyll
absorb green light
reflect violet light
none of the above
doesn't absorb green light
19
The diffusion of water across a selectively permeable membrane is called
osmosis
active transport
osmotic preesure
facilitated diffusion
20
Which of the following is a function of the cell membrane?
keeps the cell wall in place
breaks down lipids, carbohydrates, and proteins from foods
stores water, salt, proteins, and carbohydrates
regulates which materials enter and leave the cell
21
The structure most responsible for maintaining cells homeostasis is the _____.
cell wall
mitochondrion
cytoplasm
plasma membrane
22
Diffusion is the movement of molecules from
an area of low concerntration to an area of high concentration
an are of equilibrium to an are of high concentration
an area of high concentraition to an area low concentration
all of the above
23
How does an enzyme influnce a biologist reaction?
It increases the kinetic energy of reactants, and increasing colliding.
It decreases the activion energy necessary to initiate the chemical change.
It increases the net energy difference between reactants and products
It decreases the kinetic energy of reactants, and chemical change is more.
24
What is the basis of the metric measurement system?
Its measures are based on divisions that are powers of ten
It is based on the wavelength of krypton-86 radiations
It is the only scientific mearsurement system
It is based on European measurement standards
25
Which of the following is not a form of passive transport?
facilitated diffusion
moving down the concentration gradient
endocytosis
osmosis
26
A single covalent bonds forms when atoms do which of these?
When they share two electrons
when one gives an electrons to the other
When they share one electrons
When one gives two electons to the other
27
Plants take in the sun's energy with light-absorbs molecules
chlorophyll a
high-energy sugars
chlorophyll b
sunlight
28
A group of orgamisms that can interbred and produce fertile offs[ring is a(n) _____.
family
organization
community
species
29
a hydrogen bond can form between a hydrogen atom of one molecule and which atom of another molecule?
oxygen
hydrogen
carbon
sodium
30
The main function of the cell wall is to
a=support and protect the cell
store DNA
help the cell move
direct the activities of the cell
31
How does the Clavin cycle differ from the light-dependent reactions?
It takes place in the thylakiod.
It requires light.
It takes place in the chloroplast.
It takes place in the stroma.
32
Oranisms, such as plants, that make their own food are called
pigment
autotrophs
thylakiods
heterotrophs
33
What are the products of the light-dependent reactions?
All of the above
NADPH
oxygen gas
ATP
34
A charged atom that has lost or gained electrons is called a(n) _____.
isotype
catalyst
acid
ion
35
A single carbon atom can form a maximum of how many single covalent bonds?
6
2
8
4
36
When light strikes chlorophyll, they lose electrons, which are ultimately replaced by which of the follwing?
splitting water into 2H+ and 02
fixing carbon
breaking down ATP
oxidizing glucose
37
Which best descibes the purpose of science?
to explain the nature of things
to solve the ethical problems of society
to solve the ethical problems of society
to prosose solutions to political issues
38
When added to water, how does an acid affect the pH and H+ concentration?
Both pH and H+ decreases
Both pH and H+ increases
The pH increases while the H+ decreases
The pH decreases while the H+ increases
39
Which of the following is a function of the nucleus?
Stores DNA
contains the information need to make proteins
Controls most of the cell's processes
All of the above
40
A person studying a topic is presented with new info that conflicts with previous finding. What would a scientist do?
ignore the new info
argue against the new info
evalute the new info
keep the new info to himself
41
Which substance on the plasma membrane helps identify cemical signals from outside the cell?
cholesterol
transpot protein
carbohydrate chain
membrane protein
42
Which of the following results form the quantitative analysis?
there isn't enough food
there are 8 offsprings
the babies are cold
these are the first offspring these rabbits have had
43
Which defines a cell?
the basic unit of living things
microscopic organism in waterr
the smallest type of animal
protein molecules in animals
44
What are the three parts of an ATP molecules?
adenine, ribose, phosphate groups
stroma, grana, chlorophyll
NADH, NADPH, and FADH2
adenine thylakiods, stroma
45
If carbon dioxide is gone, what would expect to happen to the plant's production of high-energy sugars?
The same amount of sugars will be produced
More sugars will be produced
No sugars will be produces
Carbon dioxide doesn't effect it
46
Which manufactures ribosomes?
Nucleolus
proteins
E.R.
nucleus
47
The scientist who first described living cells as seen through a simple microscope was _____.
Hooke
van Leeuwenhoek
Schleiden
Schwann
48
What time period will provide the most flowering plants?
7-8 Days
8-9 Days
5-6 Days
6-7 Days
49
The apprivation of MSDS stands for
Material Sample Data Sheet
Material Saftey Data Sheet
Material Service Data Sheet
Material Specific Data Sheet
50
Which of the following is false?
A chloroplast contains stroma
A stroma contains a thylakiod.
A granum contains several thylakiods
A thylakiod contains chlorophyll
51
Water moves out of the cell if the cell is placed in a(n) _____ solution.
passive
Isotonic
hypertonic
Hypotonic
52
A biochemist is doing an experiment to determine the effects of chemical X on bacteria growing. What is the control?
Test Tube 4
Test Tube 3
Test Tube 2
Test Tube 1
53
In the peer-review process for a report of the results the ecology of honeybees, who would be an appropiate reviewer?
a politician that knew about bees
a biologist that studies insects
a university president
a physicist that keeps bees
54
Cholesterol if repelled be water and can be found between the phospholipids, What can be concluded from this?
Cholesterol is polar
cholesterol is repelled by the polar tails
cholesterol is nonpolar
A high cholesterol diet should be avioded
55
Which is a biological activity a person can do at the beach?
Identify various minerals in the sand
experiment with sand erosion pattern
measure the tidal differances during the day
Observe the feeding behaviors of gulls
56
Organisms that can't make their own food and must obtain energy form the foods they eat are called
plants
heterotrophs
autotrophs
thylakiods
57
Who was one of the first people toidenify and see cork cells?
Robert Hooke
Matthias Schleiden
Anton van Leeuwenhoek
Rudolf Virchow
58
A molecule of water (H₂O) has which bonds?
1 covalent bonds
2 ionic bonds
2 Covalent bonds
1 ionic Bond
59
Photosynthesis used sunlight to convert water and carbon dioside into
oxygen and high-energy sugars and starches
high-energy sugars and starches
oxygen
ATP and oxygen
60
Which of the following is not an example of a heterotroph?
human
deer
grass
mushroom
61
Which is an inferance?
You give a plant the same amount of water everyday
After watching a plant for a week, you determine it needs more sunlight
Everyday for a week, you collect data on a plant's movement
You measure a plant's height every day for a week
62
Which of the following is NOT a principle of the cell therory?
Cells are the basic unit of life
All cells are produced by existing cells
All living things are made of cells
Very few cells reproduce
63
Which is an example of a chemical reaction?
sugar dissolving in water
ice melting
water evaporating
iron rusting
64
The Calvin cycle takes place in the
photosystems
stroma
chlorophyll molecules
thykaloid membrane
65
The Calvin cycle is another name for
All of the Above
light-independent reactions
photosynthesis
light-dependent reactions
66
One isotype of carbon differs from another in which way?
number of neutrons
number of electrons
number of protons
atomic number
67
You will not find a cell wall in which of these kinds of organism?
all of the above
fungi
plants
animals
68
The total number of atoms in a molecule of sucrose, C₁₂H₂₂O₁₁is _____.
22
11
12
45
69
What makes an water molecule polar?
A water molecule has a slight charge on each end
Water has the ability to be frozen
A water molecule is made up of three atoms
The pH of pure water varies with the temperature
70
A plasma membrane is made up of a(n) ____.
enzyme layer
lipid layer
cholesterol layer
protein layer
71
Which is considered a non-scientic question?
Why are ocean temperatures increasing?
Are humans able to read minds?
Who was the greatest scientist?
How do chimpanzees communicate?
72
Plants gather sun's enegy with light absorbing molecules called
glucose
thylakoids
pigments
chloroplast
73
Which is the negatively charged particle located outside the nucleus of an atom?
neutron
silicon
electron
proton
74
A student is collecting the gas given off from a plant in bright sunlight at a temp of 27⁰C. The gas was probably
oxygen
carbon dioxide
ATP
vaporized water
75
Water moves into a cell places in a(n) ___ solution
hypotonic
isotonic
hypertonic
osmotic
76
Which is NOT true of lipid?
They are hydrophobic
They are polar
They are good for energy storage
They are commonly called fats and oils
77
Which of the following would be an activity conducted by a biologist?
Idenify the cause of an earthquake
Design a new, solar-powered car
Describe the behavior of brown bears
Teach people how to plant corn
78
Tasha is testing the effect of blue-colored light on the growth of totmato plants. Which is the independent varible.
light intensity
amount of light
light color
temperature of light
79
Algal celles are placed in a hypertonic solution. What will happen to the cells?
They will stay the same
They will burst
They will swell
They will shrink
80
What do scientist call an explanation of natural of phenomenon supported by many observations and experiments over time?
scientific law
hypothesis
scientific theory
existing knowledge
81
A compound has a ratio of 2 hdrogen:1 carbon should be classified by which marcomolecule?
Nucleic Acid
lipid
Protein
carbohydrate
82
What are the products of the Calvin Cycle?
carbon dioxide
high-energy sugars
oxygen gas
ATP
83
Which defines an atom?
charged particle
smallest particle
building block of matter
building block of energy
84
Which end of a phospholipid molecule is hydrophilic?
tail
head
85
A recipe has sugar, salt, and vanilla flavoring in butter. What ingredient is the solvent?
sugar
Vanilla Flavoring
salt
butter
86
Which of the following is an autotroph?
bear
sunflower
leopard
mushroom
87
Amino Acids are the building blocks of which macromolecules?
DNA
Protein
Lipid
Carbohydrates
88
Which can't take place during a chemical reaction?
Formation of new molecules
Formation of new atoms
Bonds forming between atoms
Bonds breaking between atoms
89
Biologist would repeat the smae investigation several times to ____.
form a new therory
obtain consistant data
get the correct results
prove their hypothesis
90
An organism's genetic info is stored in which type of macromolecule?
Carbohydrates
DNA
Proteins
Lipids
91
Which of the following metabolic pathways is anabolic?
Fermentation
Breakdown of actin in muscles
Respiration
Photosythesis
92
A cell's contents would be the same as its surroundings, were in not for ______.
phagocytosis
plasmolysis
selective permability
dynamic equilibrium
93
Which is an example of a stimulus and the accompanying reponse of an organism?
A rat scurries past, and a python strikes at it
An earthwaorm burrows into a new, rich soil
a wildebeast crosses a river during migration
A hawk grabs a branch to gain a perch
94
WHich does a polymer most closely resemble?
Circle
Link in a Chain
Chain
intersection
95
Which of the following organisms are prokaryotes?
animals
all of the above
bacteria
plants
96
Where in chloroplast is chlorophyll found?
in the ATP
In the thylakiods
In the stroma
in the glucose
97
If a cell contains a nucleus, it must be a(n) ____.
prokaryotic cell
plant cells
eukaryotic cells
animal cells
98
A cell moves particles fom a lesser region of lesser concentration to a region of greater concentration by ______.
facilitated diffusion
passive transport
active transport
osmosis

Mrs. Keith's Midterm Study Guide Flashcards | StudBud