22 Questions
What is the function of the nucleolus in a cell?
Protein synthesis
During which phase of the cell cycle do chromosomes appear unwound and jumbled?
G1 phase
Which elements make up 96% of living matter?
Carbon, hydrogen, oxygen, nitrogen
What is the main difference between an element and a compound?
Elements cannot be broken down chemically, compounds can be broken down easily
Which organelle is known as the cell's protein-producing structure?
Nucleolus
Why are trace elements important for living organisms?
They are required in small quantities for normal physiological functions
What is the main difference between unicellular and multicellular organisms?
Functions of the cells
How are prokaryotes different from eukaryotes?
Presence of nucleus
Which term describes a single-celled organism lacking a true nucleus?
Prokaryote
What are the basic components of a eukaryotic cell as observed under a light microscope?
Cell Membrane, Cytoplasm, Nucleus
Which feature is common to all cells?
Cytosol being crowded
What is the distinguishing feature between eukaryotic and prokaryotic cells regarding the nucleus?
Nuclear materials are separated from cytoplasm in eukaryotes
What is the importance of interactions between organisms and their environments?
Both organisms and their environments are affected by these interactions
How does a tree contribute to the environment?
Releasing oxygen into the air
What major processes are involved in the dynamics of an ecosystem?
Flow of energy and cycling of nutrients
In what form does energy usually enter an ecosystem?
Chemical energy
Why is the structure and function of living organisms closely related?
Structure and function of living organisms are closely related
What is the lowest level of organization that can perform all activities required for life?
Cell
What type of cells do bacteria and Archaea belong to?
Prokaryotic cells
What differentiates eukaryotic cells from prokaryotic cells?
Presence of a nucleus in eukaryotic cells
What role does DNA play in all cells?
Genetic information in all cells
What is the basis for reproduction, growth, and repair in multicellular organisms?
Ability of cells to divide
Explore how the increase of carbon dioxide levels affects the biosphere and its interactions. Learn how organisms exchange matter and energy with their environment, and how these interactions influence both the organisms and the environment.
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