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Duplicate of Biology MCAS Review
Duplicate of Biology MCAS Review
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2015 Biology MCAS Prep-Mr. Ehle Framingham High School
Flashcards
31 cards
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Practice quiz
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Host live
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Questions
31
Answers
1
The scientific name for the cougar is
Puma concolor
. Which organism is most closely related?
Puma yagouaroundi
Corythaixoides concolor
Panthera tigris
Lynx rufus
2
Thyroxine and Estrogen are hormones secreted by endocrine glands. What is the role of hormones?
Supply energy to cells
Remove toxins from body
Stimulate electiral nerve impulses
Regulate bodily functions
3
What is the number of cells and number of divisions in
Mitosis
and
Meiosis? (Cells, Divisions)
4,2 : 2,1
2,2 : 2,1
1,1 : 2,2
2,1 : 4,2
4
If 30% of the nitrogenous bases are thymine. What percentage of the bases are adenine?
70
30
60
20
5
Which of the following happens when a phosphate bond is broken in an ATP molecule?
Light energy is stored in plants
Energy is Released
Lysosome contents are releases into cell
Water is transported into the cell
6
If producers in a food web were removed what would happen?
The food web would collapse over time
The consumers would begin making energy for the food web
The remaining populations would increase
The food web would depend on decomposers for energy
7
At what step of mitosis does this occur? Copies of each chromosome are separating
Interphase: G1
Anaphase
Cytokinesis
Metaphase
8
What step explains Transcription?
RNA-DNA
DNA-RNA
RNA-Proteins
DNA-DNA
9
What organisms are responsible for converting atmospheric nitrogen into a usable form 4 plants?
Denitrifying Bacteria
Consumers
Nitrogen Fixing Bactera
Decomposers
10
Which of the following processes removes carbon from the atmosphere?
Photosynthesis
Nitrogen Fixation
Cell Respiration
Decomposition
11
A Red Flower(RR) and a White Flower(WW) make a Pink Flower (RW) what type of dominance is this?
Homozygous Dominant
Incomplete Dominance
Sex Linked Dominance
Codominant
12
Alleles that control seed color for a plant are shown: Is Gg heterozygous or homozygous?
Homozygous
Heterozygous
Dominant
Recessive
13
How many chromosomes should be in a baby's somatic cells? How many come from each parent?
46, 46 and 46
23, 12 and 11
46, 23 and 23
92, 46 and 46
14
Which of these is
not
a factor that must be present for Natural Selection to occur?
All organisms survive
Variation of offspring
Organisms with the best traits for that environment survive
Overproduction
15
Which of the following characteristics
best
classifies organisms into their taxonomic level?
Eating habits
Location of habitat
Method of reproduction
Gene sequence
16
For the quickest source of energy, someone should eat food that contains the most?
Nucleic Acids
Sodium
Lipds
Carbohydates
17
In what 3 structures of the Digestive System does chemical digestion occur?
Mouth, Stomach, Small Intestine
Mouth, Esophagus, Large Intestine
Mouth, Esophagus, Stomach
It only happens in 2 locations: Mouth and Stomach
18
Which of the following is the function of the Nucleus?
Storing Genetic Material
Producing Food Molecules
Absorb Sunlight Energy
Release Usable Energy
19
Brown color is Dominant (B) to Blue (b). What parent genotypes will produce all blue offspring?
BB x bb
Bb x Bb
BB x BB
bb x bb
20
Whale fins and bat wings are anatomically similar, what does this suggest?
Whales and bats have existed for the same amount of time
Whales and bats have a common ancestory
Whales and bats were once adapted for the same enviornment
Whales and bats move in the same way
21
A mutation occurs in a individual but the individual’s phenotype does not change what happened?
A mutation deleted a section of DNA
A mutation caused a section of DNA to repeat
A mutation affected the nucleotide sequence, but not the AA
The mutation occurred and changed the AA
22
Which of the following is most likely to change when an enzyme is added to a reaction?
The products of the reaction
The pH
The temperature
The rate of reaction
23
Black hair (
B
) is dominant to brown hair (
b
). BB x Bb, What is the % of kids with Black hair?
25
75
100
0
24
In what trophic level do herbivores such as elk belong?
Tertiary Consumer (4th and up)
Producer (1st)
Decomposer
Primary Consumer (2nd)
25
Why do X-linked recessive traits in humans occur more frequently in males than in females?
Males take longer to develop to maturity
Males have one X chromo, girls have 2 copies of the x chromo
Males and females have different hormones
Transcriptionof X chromosome occurs more frequently in males
26
Which of the following is the
best
example of natural selection?
The average toxin level of frogs increase due to predation
Lifespan of a chimpanzee is extended 60 years in captivity
Population of giraffes increase due to immigration
Bone density in humans increase as a result of sports
27
Sperm whales have vestigial hip bones, which best explains the presence of this structure?
Whales are in the process of evolving into land animals
Embryonic development takes a long time
These structures are acquired during their lifetime
Whales evolved from ancestors that walked on land
28
Where does an oxygen molecule go once inside the alveloi? By what process does this occur?
Into the Capillaries, Diffusion
Exhaled Out, Osmosis
Into the Heart, Diffusion
Turns into CO2, Active Transport
29
Which elements are most abundant in peptidoglycan, which is found in the cell wall of bacteria?
Potassium and Iodine
Carbon and Hydrogen
Iron and Magnesium
Aluminum and Sodium
30
How do Prokaryotic cells appear different from Eukaryotic cells?
The prokaryotic cells do not have a nucleus
The prokaryotic cell is much larger
The prokaryotic cell has a less distinct shape
The prokaryotic cell has mitochondria
31
What is the function of a ribosome?
Remove Cell Waste
Breakdown Lipids
Synthesize Proteins
Store Energy
