Characteristics of Life
Mrs. Gren.
Grow, reproduction, response to stimuli, metabolism, and homeostasis.
What are the main characteristics of living things?
The nucleus stores genetic material (DNA) and controls cell activities.
What is the function of the nucleus in a cell?
This is the mode of reproduction that involves a single parent and produces genetically identical offspring.
What is asexual reproduction?
This is the maintenance of a stable internal environment in an organism despite external changes.
What is homeostasis?
These are are organisms that make their own food through photosynthesis (e.g., plants).
What are producers?
This is one organelle involved in energy production.
What is the mmitochondria?
These are examples of organisms that reproduce sexually.
What are humans, dogs, plants (any sexually reproducing organisms).
Sweating for temperature regulation, insulin for blood sugar regulation.
What are mechanisms that helps maintain homeostasis in the human body?
These are organisms that eat producers or other consumers for energy (e.g., herbivores, carnivores).
What are consumers?
Movement, secretion, growth, and adaptation.
What are the names of the processes that living organisms use to respond to their environment?
Ribosomes are responsible for protein synthesis.
What is the role of ribosomes in the cell?
Genetic diversity, adaptability to changing environments, and the potential for evolutionary advantages.
What are the advantages of sexual reproduction?
These detect changes and initiate responses to maintain stability. There can be positive or negative forms of this.
What is a feedback loop or mechanism?
This is the process by which green plants use sunlight, carbon dioxide, and water to produce glucose and oxygen.
What is photosynthesis?
Metabolism is the sum of all chemical reactions that provide energy for growth, reproduction, and maintenance of cellular activities.
What is the significance of metabolism in living organisms?
Prokaryotic cells are unicellular, lack a nucleus, and have no membrane-bound organelles. Eukaryotic cells are either unicellular or multicellular, have a nucleus, and contain membrane-bound organelles.
What are some of the major differences between prokaryotic and eukaryotic cells?
This is the process of producing identical genetic copies of an organism.
What is cloning?
These changes (like temperature, humidity, or availability of resources) can disrupt the balance of internal conditions, requiring organisms to adapt or risk survival.
What are environmental changes and how do they impact homeostasis?
This item shows a linear sequence of energy flow, while a food web illustrates multiple interconnected food chains, showing the complexity of energy transfer in an ecosystem.
What is a food chain?
Growth refers to an increase in size and mass, while development involves changes in the organism's form and function over time.
What is how growth and development differ in living organisms?