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Midterm Science Bio

QuestionAnswer
Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy as it increases in complexity? molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem
The ultimate source of energy flowing into nearly all ecosystems is sunlight.
To be scientifically valid, a hypothesis must be testable and falsifiable.
The role of a control in an experiment is to provide a basis of comparison to the experimental group.
The four most common elements in living organisms are C, H, O, N.
Which of the following statements best describes a compound? A compound contains two or more different elements in a fixed ratio.
What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? 12
An uncharged atom of boron has an atomic number of 5 and an atomic mass of 11. How many electrons does boron have? 5
A person shakes up vinegar and oil dressing before pouring it on salads. What is the chemical reason for doing this? Vinegar contains charged water molecules, while oil is neutral and repels water.
Water's surface tension and heat storage capacity is accounted for by its hydrogen bonds.
A solution with a pH of 7 is neutral.
________ cells lack a membrane-enclosed nucleus. Prokaryotic
You are told that the cells on a microscope slide are plant, animal, or bacterial. You look at them through a microscope and see cell walls and membrane-bound organelles. You conclude correctly that the cells are plant cells.
The function of mitochondria is cellular respiration.
The function of chloroplasts is photosynthesis.
The Golgi apparatus stores, modifies, and packages proteins.
Cell membranes are selectively permeable. This means that the plasma membrane allows some substances to enter or leave a cell more easily than others.
Diffusion does not require the cell to expend ATP. Therefore, diffusion is considered a type of passive transport.
Muscle soreness associated with strenuous exercise is at least partly due to the presence of lactate produced during fermentation in muscle cells.
By-products of cellular respiration include carbon dioxide and water.
Which of the following is a result of glycolysis? conversion of glucose to two three-carbon compounds/pyruvate
Created by: CaiCascio
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