Random Biology
The presence of what organelle would be most helpful in classifying a cell as either prokaryotic or eukaryotic?
What is nucleus?
Which biomolecule is fundamental to the function of biological membranes, such as cell membranes?
What is a lipid?
Cells differ from viruses in that only cells contain_____________?
What is organelles?
Enzymes involved in the breakdown of fats contribute to the reaction in which way? These enzymes -
What is increase the speed of the reaction.
What describes a characteristic common to both osmosis and diffusion? Both osmosis and diffusion–
What only move substances from high to low concentration and/or passive transport?
Which organelle can be found in both prokaryotic and eukaryotic cells?
What is a ribosome?
What is Carbohydrate?
Viruses have structures that allow them to inject their genetic material directly into the DNA of the host cell. This strategy benefits the virus in that it
What is uses the host’s machinery to replicate?
How do enzymes make chemical reactions more efficient?
What is decrease the activation energy that is require for the chemical reaction to occur?
What allows molecules, water, and oxygen can enter a cell is determined by the-
What is permeability of the cell membrane
What provides evidence to support the endosymbiotic theory?
What is Mitochondria and chloroplasts contain DNA similar to prokaryotic DNA?
Fats, steroids, and waxes are all examples of–
What is a lipid?
Viruses use two different cycles of replication, the lytic cycle and the lysogenic cycle. In what way is the lysogenic cycle different from the lytic cycle?
What is the host cell is not destroyed immediately (The lytic cycle will kill the host cell quicker by releasing new viruses)?
What occurs as the result of a substrate fitting into its specified active site on an enzyme?
What is The new product will form?
The external conditions that would cause a cell to shrivel or swell in size are those in which the-
What solute to solution ratio within a cell is not in equilibrium or isotonic state?
Both euglena and cynobacteria are photosynthesis unicellular organisms found in pond water. The feature that distinguishes euglena from cyanbacteria is...
What is the presence of a nuclear membrane (nucleus)?
Collagen, antibodies, enzymes, and myoglobin are examples of–
What is proteins?
What is does not have the correct surface proteins to attach to the other cells?
What affects the normal functioning of an enzyme?
What is pH and temperature affects the activity of an enzyme?
The difference between active and passive transport is that–
What is active transport requires energy to move molecules up a concentration gradient, and passive transport does not?
Lysosomes are a type of organelle in eukaryotes. What do they do?
What is break down cellular waste?
Sickle cell anemia is a genetic disorder in which the hemoglobin responsible for transporting oxygen is misformed. The disease begins with a mutation in a _______________ acid, which results in a structural difference in a_____________________?
What is nucleic acid & protein.
Both viruses and living cells contain
What is DNA?
The lack of the enzyme lactase
What is lactose intolerance
Which of the following scenarios represents an example of osmosis?
- Blood vessels transport glucose to cells.
- Blood vessels transport glucose to cells.
- Limp celery becomes crisp in water.
- Sweating lowers body temperature.
What is Limp celery becomes crisp in water.