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