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Practice
Practice
100
Microscopic examination of a plant cell reveals the presence of a chloroplast. Which other structure(s) would be present within this cell?
A. Centrioles B. Cilia C. Mitochondria D. Small dispersed vacuole
100
What happens when the bonds between phosphate groups in ATP are broken?
A. Energy is absorbed. B. Energy is released. C. The adenosine molecule breaks apart from the remaining phosphates. D. The adenosine molecule is absorbed by the remaining phosphates.
200
It has been observed that bats, horses, and humans have nearly the same amino acid sequence for hemoglobin. Which of the following ideas is supported by this observation?
A. All species can obtain nucleotides from their environments. B. All species have the ability to change structures as they adapt to their environments. C. Genetic mutations can lead to abrupt changes and create new species. D. Specific components of the genetic code are common to all species.
200
Many birds store significant amounts of energy to power flight during winter migration. What type of biological macromolecule might be usedfor energy storage in an organism?
A. Carbohydrate B. Lipid C. Nucleic acid D. Protein
300
An amoeba reproducedusing mitosis. What is true about the number of chromosomes in a daughter cell?
A. It has a new set of chromosomes. B. It has half as many chromosomes. C. It has the same number of chromosomes. D. It has twice as many chromosomes.
300
Water has a high surface tension. What property of water allows the organism pictured in the diagram to "walk" on water?
A. Adhesion B. Cohesion C. Ionic Bonds D. Nonpolar Covalent Bonds
400
Which element is common to all organic macromolecules?
A. Carbon B. Nitrogen C. Phosphorus D. Sodium
400
Which substances must a green plant obtain from it environment in order to convert light energy into chemical energy?
A. Carbon dioxide and oxygen B. Carbon dioxide and water C. Glucose and water D. Oxygen and chlorophyll
500
Photosynthesis transforms solar energy into chemical energy. Where is this energy stored?
A. Sugars B. Proteins C. DNA D. Water
500
Which of the following correctly describes the result of meiotic cell division?
A. Two diploid daughter cells. B. Two haploid daughter C. Four diploid daughter cells D. Four haploid daughter cells