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