Chapter 1 Flashcards
What is the basic unit of life?
Cell
True or False: All living organisms are made up of one or more cells.
True
Fill in the blank: The process by which organisms maintain a stable internal environment is called __________.
homeostasis
Which of the following is NOT a characteristic of life? A) Growth B) Reproduction C) Inability to adapt D) Response to stimuli
C) Inability to adapt
What term describes the genetic material found in all living cells?
DNA
True or False: Evolution is a process that occurs only at the level of individual organisms.
False
What is the role of ribosomes in a cell?
Protein synthesis
Multiple choice: Which of the following is a prokaryotic organism? A) Plant cell B) Animal cell C) Bacterium D) Fungi
C) Bacterium
What is the process by which plants convert sunlight into chemical energy?
Photosynthesis
Fill in the blank: The study of how living organisms interact with their environment is known as __________.
ecology
True or False: Natural selection is a mechanism of evolution.
True
What is the function of mitochondria in a cell?
Energy production
Multiple choice: Which molecule is considered the energy currency of the cell? A) DNA B) RNA C) ATP D) Glucose
C) ATP
What term describes the variety of life in a particular habitat or ecosystem?
Biodiversity
Fill in the blank: __________ are the basic units of heredity.
Genes
True or False: All living organisms require oxygen to survive.
False
What is the main purpose of cellular respiration?
To convert glucose into usable energy (ATP)
Multiple choice: Which structure controls what enters and leaves a cell? A) Cell wall B) Nucleus C) Cell membrane D) Cytoplasm
C) Cell membrane
What is the primary function of chloroplasts?
To conduct photosynthesis
Fill in the blank: The __________ is the part of the cell that contains the genetic material.
nucleus
True or False: Viruses are considered living organisms.
False
What is the term for the change in inherited traits over time in a population?
Evolution
Multiple choice: Which of the following is an example of a biotic factor in an ecosystem? A) Water B) Temperature C) Plants D) Soil
C) Plants
What is the primary role of enzymes in biological processes?
To act as catalysts and speed up chemical reactions
Fill in the blank: The __________ is a network of protein filaments that helps the cell maintain its shape.
cytoskeleton
True or False: All cells have a nucleus.
False
