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- Multiple ChoicePlease save your changes before editing any questions.Which statement best explains why cellular respiration in plants and other organisms is dependent on photosynthesis?Photosynthesis is one of the final steps in cellular respiration.Photosynthesis provides the materials that fuel cellular respiration.Photosynthesis absorbs excess energy produced by cellular respiration.Photosynthesis absorbs materials that are catalyzed during cellular respiration.
- Multiple ChoicePlease save your changes before editing any questions.The indicated protein is part of a cell membrane. What is the most likely purpose of this protein?It allows passage of particles into and out of the cell.It manufactures phospholipids to repair membrane damage.It releases stored chemical energy in membrane carbohydrates.It attracts unbalanced electrical charges in the cell’s environment.
- Multiple ChoicePlease save your changes before editing any questions.Which statement best describes how active transport differs from passive transport?Only active transport requires ATP.Only active transport moves small particles.Only active transport relies on a plasma membrane.Only active transport allows substances to leave a cell.
- Multiple ChoicePlease save your changes before editing any questions.All living organisms must maintain homeostasis in order to survive. Which statement best describes one way humans maintain homeostasis?Temperature is regulated by giving off carbon dioxide.Water content is regulated by giving off carbon dioxide.Temperature is regulated by sweating.Water content is regulated by sweating.
- Multiple ChoicePlease save your changes before editing any questions.Bacteria are single-celled microorganisms. The cell walls of these microorganisms serve as barriers to chemicals that might affect the processes that occur within a bacterial cell. Antibiotics are a type of substance used to stop bacterial growth. Some antibiotics cause the bacterial cell wall to rupture.Which statement best describes how antibiotics affect cellular homeostasis?Antibiotics remove chloroplasts from plant cells to cause starvation.Antibiotics interfere with the transport of intracellular and extracellular materials.Antibiotics increase the rate of DNA replication in human cells by forming nucleotides.Antibiotics decrease the rate of cellular respiration in animal cells by producing oxygen.
- Multiple ChoicePlease save your changes before editing any questions.Adipose cells (fat cells) are specialized for energy storage. How does the structure of adipose cells suit their function?They contain vacuoles to accommodate large lipids.They contain large nuclei to direct the cells' activities.The contain lysosomes to quickly digest waste matter.They contain cilia to move them to areas that require energy.
- Multiple ChoicePlease save your changes before editing any questions.This beaker has three membranes. Each is permeable to water but not to calcium (Ca) ions. A researcher pours four concentrations of calcium ions in water into the chambers. In which chamber will the water level be highest when equilibrium is reached?chamber 1chamber 2chamber 3chamber 4
- Multiple ChoicePlease save your changes before editing any questions.Which of these is present in both prokaryotic cells and eukaryotic cells?nucleusribosomechloroplastmitochondrion
- Multiple ChoicePlease save your changes before editing any questions.Migrating birds often travel great distances without feeding. Which macromolecules would migrating birds most likely use as energy sources?lipidsproteinsnucleic acidscarbohydrates
- Multiple ChoicePlease save your changes before editing any questions.Which characteristic is shared by all organisms?ability to reproduceuse of specialized cellsability to convert light into energyuse of nuclei to direct cell activities
- Multiple ChoicePlease save your changes before editing any questions.Which two substances are products of photosynthesis and reactants of cellular respiration?
1. water
2. oxygen
3. glucose
4. carbon dioxidesubstances 1 and 2substances 1 and 4substances 2 and 3substances 3 and 4 - Multiple ChoicePlease save your changes before editing any questions.Which is the best example of an organism maintaining homeostasis?a dog panting to release excess body heata vine growing toward sunlight to obtain energya bird competing for a mate in order to reproducean octopus changing color to hide from a predator
- Multiple ChoicePlease save your changes before editing any questions.Which statement describes how organelles aid in transporting proteins in eukaryotic cells?Mitochondria transport ribosomes to the endoplasmic reticulum.Lysosomes attach free-floating amino acids to mRNA moleculesThe golgi apparatus joins free-floating phosphates to ADP molecules.Membrane-enclosed proteins leave the ER and merge with the Golgi apparatus.
- Multiple ChoicePlease save your changes before editing any questions.Which statement correctly describes one difference between the processes of photosynthesis and cellular respiration?Photosynthesis produces oxygen, and cellular respiration uses oxygen.Photosynthesis takes place in eukaryotes, and cellular respiration takes place in prokaryotes.Photosynthesis produces more ATP than it uses, and cellular respiration uses more ATP than it produces.Photosynthesis changes chemical energy to light energy, and cellular respiration changes light energy to chemical energy.
- Multiple ChoicePlease save your changes before editing any questions.Which statement describes one reason for carbon's central role in macromolecules?It bonds only with other noncarbon atoms.It can form single, double, and triple bonds.It shares four electrons with every atom it bonds to.It forms macromolecules in rings rather than in chains.
- Multiple ChoicePlease save your changes before editing any questions.To bond together, a glycerol molecule loses three oxygen and three hydrogen atoms, and three fatty acids each lose a hydrogen atom. Which term describes this process?transcriptionrecombinationprotein synthesisdehydration synthesis
- Multiple ChoicePlease save your changes before editing any questions.Maltose is formed from two glucose molecules. Which of these will be another product of the reaction?ATPwateroxygen gascarbon dioxide
- Multiple ChoicePlease save your changes before editing any questions.The DNA polymerases are enzymes used in DNA replication and are present in all organisms. The graph below shows the relationship of temperature and reaction rate for a DNA polymerase from a human cell. What does the graph indicate about how temperature affects the human DNA polymerase?The reaction stops occurring at about 37oCThe slo reaction rate occurs at about 37oC.The maximum reaction rate occurs at about 37oCThe greatest activation energy is needed at about 37oC.
- Multiple ChoicePlease save your changes before editing any questions.Which of these is a function of the Golgi apparatus?the manufacture of proteins by embedded ribosomesthe identification of lipids to be digested by lysosomesthe modification and routing of proteins to their destinationthe temporary storage of lipids that will be sent outside the cell
- Multiple ChoicePlease save your changes before editing any questions.Which of these shows levels of organization in the human body in increasing order of complexity?cardiac muscle cells cardiac tissue heart (organ) circulatory systemcardiac tissue cardiac muscle cells heart(organ) circulatory systemcardiac muscle cells circulatory system cardiac tissue heart(organ)heart(organ) cardiac muscle cells circulatory system cardiac tissue