Biology EOC Test Prep 2 Question Preview (ID: 34030)
Biology EOC Test Prep 2.
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The weaknesses in the hydrogen bonds between the bases of DNA allows_______
a) rearrangement of the sequence of bases to take place
b) base pairs to separate during transcription and replication
c) new bases to be incorporated into the DNA molecule
d) conversion of bases to amino acids in the event of cell starvation
Which is an activity that increases gentetic variation
a) binary fission
b) sexual reproduction
c) budding
d) fragmentation
A body cell of a sand dollar has 52 chromosomes. How many chromosomes should a sand dollar gamete contain?
a) 26
b) 52
c) 78
d) 104
In cells, aerobic respiration is more efficient than anaerobic respiration . This is because aerobic respiration produces more of which of the following substances
a) ATP
b) DNA
c) Glucose
d) Protien
Earth’s atmosphere is 20.9% molecular oxygen (O2). Which process provides most of the oxygen in the atmosphere?
a) cellular respiration
b) osmosis
c) photosynthesis
d) transpiration
The stored information in DNA codes for which of the following?
a) proteins
b) simple sugars
c) mitochondria
d) large vacuoles when nutrients are abundant
Beginning with one parent cell, how many daughter cells are typically produced from one mitotic division?
a) 1
b) 2
c) 4
d) 8
Which of these does not occur during meiosis?
a) production of identical gametes
b) production of new gene combos
c) crossing over of homologous chromosomes
d) reduction of chromosome number by half
In which of the following cell structures are the Drosophila chromosomes located?
a) lysosome
b) nucleus
c) ribosome
d) vacuole
Which type of molecule do Drosophila chromosomes primarily contain?
a) DNA
b) RNA
c) lipids
d) monosaccharides
A body cell of a sand dollar has 52 chromosomes. How many chromosomes should a sand dollar gamete contain?
a) 26
b) 52
c) 78
d) 104
In cells, aerobic respiration is more efficient than anaerobic respiration This is because aerobic respiration produces more of which of the following substances?
a) ATP
b) DNA
c) glucose
d) protein
A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which has occurred?
a) The swollen gums have absorbed the saltwater solution.
b) The saltwater solution lowers the temperature of the water in the gums.
c) The salt in the solution has moved against the concentration gradient.
d) The water in the gums has moved from a high to a low concentration of water.
Which organism is most likely to use anaerobic respiration?
a) bird
b) moss
c) tree
d) bacteria
If the xylem in a young tree is damaged, which process is first affected?
a) performing photosynthesis
b) transporting sugar to the roots
c) transporting water to the leaves
d) absorbing water from the soil
A plant species lives in an area with limited sunlight. Which physical adaptation would be most useful to the plant?
a) colorful flowers
b) large leaves
c) deep roots
d) thin cuticle
RNA and DNA are which type of organic compound? A carbohydrate B lipid C nucleic acid D protein
a) carbohydrate
b) lipid
c) nucleic acid
d) protein
Which is an example of osmosis?
a) potassium ions moving in and out of an animal cell
b) carbon dioxide moving into the leaf cells of a plant
c) oxygen moving into the bloodstream from the lungs
d) water moving into the root cells of a plant
What advantage do sexually reproducing organisms have over asexually reproducing organisms?
a) genetic variation
b) genetic stability
c) increased fertilization rate
d) increased reproductive rate
Which types of organisms developed first due to the early environmental conditions on Earth?
a) prokaryotic and aerobic
b) prokaryotic and anaerobic
c) eukaryotic and aerobic
d) eukaryotic and anaerobic
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