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Biology midterm review 2024 Flashcards | StudBud
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Biology midterm review 2024
Biology midterm review 2024
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1
all of the life on Earth exists in
niche
biosphere
ecosystem
habitat
2
In what ways are herbivores and carnivores alike?
both are autotrophs
both consume producers
both use photosynthesis
both consume other organisms
3
Enzymes affect the reactions in living cells by lowering the
activation energy of the reaction.
temperature of the reaction.
speed of the reaction.
active site energy of the reaction.
4
Looking at a cell under a microscope, you note that it is a prokaryote. How do you know?
The cell lacks a cell membrane
The cell lacks cytoplasm
The cell lacks a nucleus
The cell lacks genetic material.
5
A symbiotic relationship in which both members benefit
Parasitism
Commensulism
Monogomy
Mutualism
6
Which of the following organisms are prokaryotes?
plants
fungi
animals
bacteria
7
Define diffusion
passive movement particles from high to low concentration
movement of water from high to low concentration
movement of organelles from high to low concentrations
movement of particles from low to high concentrations
8
The branch of biology dealing with interactions among organisms and the environment
modeling
ecology
economy
recycling
9
Which organelles are found in plant cells, but not in animal cells?
Centrioles and Mitochondria
Cell wall and Nuclear Membrane
Chloroplast and Cell Wall
Vacuole and Mitochondria
10
The three particles that make up an atom are?
Protons, Compounds, and Electrons
Molecules, Neutrons, and Electrons
Protons, Neutrons, and Electrons
Compounds, Molecules, and Protons
11
What Is The Cell Wall Function?
Provides protection and lets things in and out of the cell.
Uses sun to produce food.
Provides protection and support.
It controls everything in the cell.
12
Which scientist pair is credited with the discovery of DNA's structure?
Curie and Franklin
Watson and Crick
Darwin and Wallace
Mendel and Morgan
13
Which of the following descriptions about the organization of an ecosystem?
Species make up communities, which make up populations.
Species make up populations, which make up communities.
Communities make up species, which make up populations.
Populations make up species, which make up communities.
14
Science is described as:
A way of knowing
A set of unchanging facts
a list of rules
A collection of beliefs
15
The basic unit of length is the:
Meter
Liter
Gram
Inch
16
What is the proper way to carry a microscope?
By the cord.
By balancing it on your head.
One hand on the arm and one hand on the base.
By the eyepiece.
17
If an atom contains 3 protons, 4 neutrons, and 3 electrons its atomic mass is
3
7
4
10
18
What are the three parts of the cell theory?
New cells are produced from pre-existing cells
All living things are made of cells
Cells are the basic units of structure and function
All of the above.
19
When using the microscope, it is important to focus first on ________ power
high
oil immersion
100X power
low
20
What type of ion forms when an atom loses electrons
neutral
positive
negative
radioactive
21
Identify the
REACTANTS
in the chemical equation below:
C6H12O6 and 6O2
CO2 and H2O
C6H12O6
CO2
22
Who named cells as "cells"
Somone in our class
van Leewenhoek
Schwann and Schleiden
Hooke
23
Which of these is an example of mutualism?
Tongue-eating isopod and trout
A fish protecting a shrimp, who builds a burrow for them to share
A peacock courting and mating a peahen
Lamprey and fish
24
Water molecules are polar, with
the O side being negative; H side being positive
the O side being slightly positive; H side being negative
the O and H sides being slightly negative
the O and H sides being slightly positive
25
a series of steps in which a large fish eats a small fish that has eaten algae is a
pyramid of biomass
pyramid of numbers
food web
food chain
26
What is the basic structural unit of DNA?
Nitrogenous Base
Amino Acids
Nucleotide
Deoxyribose nucleic acid
27
a covalent bond is formed by the
sharing of electrons
transfer of electrons
losing of electrons
gaining of electrons
28
If a substance has a pH of 6 what is it
acid
a substance
I don't now
base
29
What is at the base of all ecological pyramids?
scavengers
consumers
decomposers
producers
30
How many meters are in 2.4 kilometers?
24,000
240
24
2400
31
Organisms that make their own food are called
heterotrophic
autotrophic
32
Which organelle converts the chemical energy stored in food into useable energy?
chloroplast
mitochondrion
diddly boppers
endoplasmic reticulum
33
A personal preference or a point of view is
a hypothesis
a bias
a theory
an inference
34
The diffusion of water across a selectively permeable membrane is:
Osmosis
Tonicity
Solute
Active transport
35
In the egg lab, the hypotonic solution was:
water
corn syrup
36
During a controlled experiment, a scientist isolates and tests
a conclusion.
a control group.
a single variable.
a mass of information.
37
What are the base pair rules?
A-U & C-G
A-T & C-G
C-G & A-A
C-T & A-G
38
What is the function of a nucleus?
Protects
Supports
Contains nearly all the cell's DNA
Stores material
39
What is the function of the cell membrane?
controls what enters and exits the cell
store energy
None of these
produces energy
40
What makes water polar?
hydrogen and oxygen are linked with covalent bonds
It contains oxygen
electrons in the covalent bonds are not shared equally
there are hydrogen bonds between adjacent water molecules
41
Which element do almost all organic biological molecules contain?
carbon
water
sodium
nitrogen
42
What type of sugar is found in DNA
Sucrose
Dextrose
Ribose
Deoxyribose
43
What is a chemical reaction?
changing materials into different atoms in the same bond
changing properties into props for the next stage
changing materials into new materials into different properties
keeping materials the same properties
44
What does a vacuole do in a cell?
nothing
stores food, water and waste
gives a cell its shape
creates energy
45
What is commensalism?
One organism benefits and the other is neither harmed nor benefitted.
Neither benefits
One benefits while harming the other
Both organisms benefit
46
Identify organelle 10
mitochondria
nucleus
mitochondria
Golgi body
47
What kind of particle transport requires energy?
active transport
Osmosis
disrupts homeostasis
facilitated diffusion
48
The cell membrane contains channels and pumps. What are these channels and pumps made of?
Bilipds
Carbohydrate
Lipids
Protein
49
An atom that has lost or gained electrons.
Neutron
Electron
Proton
ion
50
Which cell structure makes proteins?
mitochondria
cholorplast
ribosome
golgi apparatus
51
What are isotopes
Two different types of atoms
Two atoms with different number of electrons
Two atoms with different number of protons
Two atoms with different number of neutrons
52
Factor that is manipulated or changed by the experimenter.
Dependent Variable
Controlled Variable
Independent Variable
53
If an atom contains 11 protons and 12 neutrons, its atomic number will be:
23
1
12
11
54
Animals that get energy by eating the carcasses of other animals
detritivores.
scavengers.
omnivores.
heterotrophs.
55
Which of the following is NOT a characteristic of all living things?
ability to move
growth and development
response to the environment
ability to reproduce
56
Identify organelle I
nucleus
chloroplast
vacuole
Golgi body
57
Estuaries are commercially important because
fish species that people buy and sell live in estuaries.
tall buildings can be built in estuaries.
lumber trees grow in estuaries.
58
What are found in the space surrounding the nucleus of an atom?
electrons
neutrons
protons
ions
59
What is a heterotroph?
An organism that makes its own food by chemosynthesis
An organism that gets its food by eating other organisms
An organism that eats only plants.
An organism that makes its own food by photosynthesis.
60
A tool used by scientist to enlarge and view samples that are very small to be seen by the naked eye.
telescope
seismograph
microscope
test tube
61
An animal cell that is surrounded by fresh water will
burst because solutes will move into the cell
burst because osmotic pressure causes H2O to move into cell
shrink because solutes will move out of the cell
shrink bc osmotic pressure causes H2O to move out of cell
62
If an atom contains 11 protons and 12 neutrons, its atomic number is
1
11
12
23
63
What is the part of the microscope that controls how much light enters the microscope?
coarse adjustment knob
diaphragm
fine adjustment knob
revolving nosepiece
64
A complex model showing feeding interactions among organisms is a
Food Chain
Food Web
Ecosystem
Biome
65
A scientific hypothesis
is a proven fact
is based on personal beliefs
can be tested by experiments
66
Define solution
Mix that forms when one substance evenly dissolve in another
a substance that changes color in the presence of a base
compound that produce hydroxide ions when dissolved in water
a amount of solute dissolved in a certain amount of solvent
67
Which organelle contains substances that digest worn out organelles and food
Nucleus
Chloroplast
Ribosomes
Lysosomes
68
What is the term for each step in the transfer of energy and matter within a food web?
food pyramid
energy path
food chain
trophic level
69
What is the difference between primary and secondary succession?
Primary starts on bare rock, secondary has soil.
Primary is more common than secondary.
Secondary only happens in forests, primary on islands.
Primary comes first and then secondary.
70
The energy needed to get a reaction started is the
adhesion energy.
cohesion energy.
chemical energy.
activation energy.
71
In a salt water solution, salt is the ___________
Solute
Solvent
72
Which of the following is NOT an abiotic factor?
temperature
salinity
light intensity
plants
73
What type of chemical bond connects the complementary bases of DNA to each other?
Hydrogen bonds
Ionic bonds
Polar covalent bonds
Nonpolar covalent bonds
74
A substance with a pH of 5 is
Base
Neutral
Acid
75
What is found in the space surrounding the nucleus of an atom?
electrons
neutrons
protons
none of these are choices are correct
76
Which of these are decomposers?
mushroom
worm
pig
bacteria
77
How much energy is passed from one organism to another in a food web?
100%
90%
10%
5%
78
An example of a human caused disturbance is
A hurricane
Wildfires
Growing lichens
Forest clearing
79
Plants are
primary consumers.
omnivores.
herbivores.
primary producers.
80
The occular lens on a microscope has a 10x mag and you are using the 40x objective, ____ is the total magnification?
100X
1040X
400X
140X
81
Identify organelle 3
cell membrane
mitochondria
Golgi body
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