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Duplicate of MCA HS Science Review
What is this?
What are the little round pieces of DNA called?
Duplicate of MCA HS Science Review
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MCA Science Review for HS test
Flashcards
66 cards
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Questions
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Answers
1
What are the little round pieces of DNA called?
Transfer DNA
RNA
Restriction DNA
Plasmids
2
What is this?
Energy pyramid
Food web
Food chain
3
Whose job is to pick up the info from DNA in protein synthesis?
mRNA
rRNA
tRNA
4
Name the openings in the leaf of a plant that allow for gas exchange.
thylakoids
stoma
grana
stroma
5
How might the introduction of a disease change the size of a population over time?
reduce the numbers permantently
decrease at first, then slowly increase
would not affect it
increase at first then die off
6
Sex-linked traits are genes found on what chromosome?
Y
X
21st
15th
7
A symbiotic relationship in which both organisms benefit is called
mutualism
commensalism
parasitism
8
The meaning of the word “Evolution” is:
Change caused solely by mutation.
Change due to changes in the environment.
Change through time.
9
Whose job is it to pick up the correct amino acids in protein synthesis?
tRNA
mRNA
rRNA
10
Which of the following is not another term for “introduced species”?
Invasive
Ferral
Exotic
Native
11
All of the following are sex cells except:
sperm
skin
egg
gamete
12
Which condition is the result of rapid breathing during exercise?
increased sugar levels in the blood
increased carbon dioxide levels in the blood
increased oxygen levels in the blood
13
Which of the following are “Laws” that may be useful in genetics?
Law of Dominance
Law of Independent Assortment
Law of Segregation
all of the above
14
What part of the brain deals with memory?
cerebellum
pons
cerebrum
hippocampus
15
All the following are homologous except:
human arm and bat wing
bird wing and insect wing
bird wing and bat wing
16
When scientists do a study & discover new evidence, what must they do to make sure it is valid?
Keep changing the variables to see what happens.
Only do the experiment once.
Repeat it numerous times and compare the outcomes.
17
Which of the following is a law?
A hypothesis that has been supported with repeated testing.
An educated guess based on previous observations.
Generalizes a body of observations – No exceptions.
18
Which of the following disease are not caused by a virus?
strep throat
measles
flu
polio
19
What are the products of Mitosis?
four diploid (2n) cells
two haploid (n) cells
four haploid (n) cells
two diploid (2n) cells
20
Read the question below.
The spray was defective.
Some insects were not killed by the spray.
The insects that were not initially killed reproduced.
Climate change caused the problem.
21
What scientific theory has most helped scientists study infectious diseases?
evolutionary theory
atomic theory
Darwin's theory
Germ theory
22
Which statement describes a setup that is controlled in an experiment?
Different types of plants to test plant growth.
Different types of light to see if it affects plant growth.
The students construct identical terrariums.
Use an old thermometer to measure temperature.
23
What is the function of xylem in plants?
Carries food
Carries water
24
Identify two substances made during photosynthesis.
iron & water
glucose & water
glucose & oxygen
oxygen & nitrogen
25
Why is biological evolution an important concept in Biology?
Shows relationships between organisms & explains diversity.
It shows nothing.
It shows geological changes did nothing to any organism.
26
Which of the following are analogous structures?
human hand and monkey hand
human arm and whale fin
monkey tail and whale tail
fish fin and whale fin
27
All RNA structures are made by the:
mitochondria
ribosome
nucleolus
nucleus
28
Protein synthesis involves two parts. What are they?
Transcription & Translation
Transformation & Transcription
Translation & Transformation
29
The endocrine system deals with:
enzymes
saliva
acids
hormones
30
Which of the following is a theory?
Generalizes a body of observations – No exceptions.
A hypothesis that has been supported with repeated testing.
An educated guess based on previous observations.
31
What body systems are most affected by aerobic exercise?
Circulatory
Respiratory
Digestive
Nervous
32
Which of the following is a hypothesis?
Generalizes a body of observations – No exceptions.
A hypothesis that has been supported with repeated testing.
An educated guess based on previous observations.
33
What part of the brain has likely been damaged when a person can't coordinate muscle movements?
cerebellum
hypothalamus
pons
cerebrum
34
Carbon is a(n) _____ in the prairie that cycles through it.
liquid
element
mineral
solid
35
Bacteria were thought to have been incorporated by cells and evolved into organelles. This is:
endosymbiosis
commensalism
parasitism
36
Another name for a pedigree is:
Karyotype
Family tree
Punnett square
37
All the following support the theory of Natural Selection except:
Those with favorable traits get to live and reproduce.
Survival of the fittest.
Some young survive due to favorable traits.
Only the biggest and strongest survive.
38
How does the body’s organ systems help convert food to energy?
digestion
cellular respiration
respiration
39
Whose job is it to put together a chain of amino acids to make a protein?
mRNA
rRNA
tRNA
40
All the following are parts to the “Cell Theory” except:
All cells arise from existing cells.
Viruses are non-living cells.
Cells are the basic units of all life.
All organisms are made of one or more cells.
41
Which 3 body systems interact to help maintain the proper blood oxygen levels during exercise?
Digestive, Muscular, Respiratory
Exocrine, Skeletal, Muscular
Circulatory, Nervous, Respiratory
Digestive, Endocrine, Excretory
42
See question below
deer
wolves
grasses/shrubs
none of these
43
A chloroplast’s or mitocondria’s DNA is similar to what other organisms DNA?
bacteria
plants
fungi
protists
44
Identify the abiotic part of the nitrogen cycle.
plant roots and nitrogen
nitogen
plant roots
soil
45
Cyanobacteria(blue-green algae) are in the Kingdom:
Protists
Monera
Plantae
Animalia
46
How does fertilizer affect the health of plants in a terrarium?
It provides them with needed nutrients in order to grow.
It will help them in cellular respiration.
It will help them photosynthesize.
47
Which of the following are types of nucleic acids?
proteins & amino acids
RNA & DNA
Molecules & atoms
48
Coyotes eat chickens. How does the coyote population most likely affect the prairie chicken?
The numbers are not related.
As coyote numbers decrease, chickens increase.
As coyote number decrease, chickens decrease.
As coyote numbers increase, chickens increase.
49
What system?
integumentary
muscular
skeletal
nervous
50
A symbiotic relationship in which only one organism benefits and nothing happens to the other.
commensalism
mutualism
parasitism
51
What are the products of Meiosis?
two diploid (2n) cells
four haploid (n) cells
four diploid (2n) cells
two haploid (n) cells
52
Name one human activity that substantially reduced the prairies.
fires
farming
railroads
building communitites
53
A symbiotic relationship in which only one organism benefits and the other one is harmed.
commensalism
mutualism
parasitism
54
See question below
Respiratory
Circulatory
Digestive
Nervous
55
What cell characteristic is most likely the difference between different species of flies?
location of genes on the chromosomes
different recipes for proteins
number of chromosomes
number of nuclei
56
Which of the following is an example of, or best describes, a food web?
looks like a pyramid
a bunch of interacting food chains
grass-mouse-fox-eagle
the connection between predator and prey
57
All of the following are somatic cells except:
sperm
kidney
skin
hair
58
What neuron part releases neurotransmitters?
Schwann cells
axon
dendrites
axon terminals
59
Sex-linked traits are genes found on what chromosome?
21st
X
15th
Y
60
What is this?
virus
amoeba
plasmodium
euglena
61
In a terrarium, a student counted a total of 20 live animals. What kind of data is this?
quantitative
qualitative
62
What system?
circulatory
nervous
integumentary
muscular
63
Vaccines are used to treat ? infections and antibodies are used to treat ? infections.
both of these
bacteria, viruses
viruses, bacteria
neither of these
64
How does the true DNA of a bacterium look?
linear like humans
tiny little circles
a big circle all twisted
65
Gregor Mendel’s work is concerned with:
genetics
classification
evolution
66
What is the process that moves materials across a membrane against a gradient?
osmosis
diffusion
active transport
passive transport
