ai generated Flashcards
What is the basic unit of life?
Cell
True or False: DNA stands for Deoxyribonucleic Acid.
True
Fill in the blank: The process by which plants make their own food is called __________.
Photosynthesis
What organelle is known as the powerhouse of the cell?
Mitochondria
Multiple choice: Which of the following is NOT a type of cell? A) Prokaryotic B) Eukaryotic C) Viral D) Fungal
C) Viral
What is the function of ribosomes?
Protein synthesis
True or False: All living organisms are made up of cells.
True
Fill in the blank: The semi-permeable membrane surrounding the cell is called the __________.
Cell membrane
What is the role of chlorophyll in photosynthesis?
It absorbs light energy.
Multiple choice: Which of the following is a component of the cell theory? A) All cells arise from pre-existing cells B) Cells are the basic unit of life C) All living things are made up of cells D) All of the above
D) All of the above
What type of bond holds the DNA strands together?
Hydrogen bonds
True or False: Enzymes are proteins that speed up chemical reactions.
True
Fill in the blank: The __________ is the control center of the cell.
Nucleus
What process do cells undergo to divide?
Mitosis
Multiple choice: Which of the following is a product of photosynthesis? A) Oxygen B) Carbon dioxide C) Glucose D) Both A and C
D) Both A and C
What is the primary function of the cell wall?
To provide structure and support
True or False: Prokaryotic cells have a nucleus.
False
Fill in the blank: The __________ is responsible for packaging and distributing proteins.
Golgi apparatus
What is the significance of the scientific method?
It provides a systematic way to investigate and understand natural phenomena.
Multiple choice: Which of the following processes occurs in the mitochondria? A) Photosynthesis B) Cellular respiration C) Protein synthesis D) Cell division
B) Cellular respiration
What is the function of the lysosome?
To digest waste materials and cellular debris.
True or False: Genetic information is stored in RNA.
False
Fill in the blank: The __________ is a jelly-like substance within the cell.
Cytoplasm
What are the two main types of nucleic acids?
DNA and RNA
Multiple choice: Which of the following is NOT a function of proteins? A) Enzymatic activity B) Structural support C) Energy storage D) Genetic information
D) Genetic information
True or False: A mutation can lead to changes in an organism’s traits.
True
Fill in the blank: The __________ is the site of protein synthesis in the cell.
Ribosome
What is the role of the plasma membrane?
To control what enters and exits the cell.
Multiple choice: Which of the following is a function of the endoplasmic reticulum? A) Lipid synthesis B) Protein folding C) Detoxification D) All of the above
D) All of the above
True or False: The sequence of nucleotides in DNA determines genetic information.
True
Fill in the blank: __________ are the building blocks of proteins.
Amino acids
What is osmosis?
The movement of water molecules through a semi-permeable membrane.
Multiple choice: Which of the following is a form of asexual reproduction? A) Binary fission B) Budding C) Fragmentation D) All of the above
D) All of the above
True or False: The heart is part of the circulatory system.
True
Fill in the blank: The __________ system is responsible for transporting nutrients and oxygen throughout the body.
Circulatory
What is homeostasis?
The maintenance of a stable internal environment.
Multiple choice: Which organ is primarily responsible for filtering blood? A) Liver B) Heart C) Kidney D) Lung
C) Kidney
True or False: The large intestine absorbs nutrients from food.
False
Fill in the blank: The __________ system is responsible for the production of hormones.
Endocrine
What is the function of the respiratory system?
To exchange gases between the body and the environment.
Multiple choice: Which part of the brain is responsible for balance and coordination? A) Cerebrum B) Cerebellum C) Brainstem D) Thalamus
B) Cerebellum
True or False: The spinal cord is part of the peripheral nervous system.
False
Fill in the blank: The __________ is the basic unit of heredity.
Gene
What is a phenotype?
The observable characteristics of an organism.
Multiple choice: Which of the following represents a homozygous genotype? A) Aa B) AA C) Ab D) aA
B) AA
True or False: Alleles are different forms of the same gene.
True
Fill in the blank: The __________ is the part of the cell cycle where the cell grows and prepares for division.
Interphase
What is the purpose of meiosis?
To produce gametes for sexual reproduction.
Multiple choice: Which of the following is a type of RNA? A) mRNA B) tRNA C) rRNA D) All of the above
D) All of the above
True or False: The process of transcription occurs in the nucleus.
True
Fill in the blank: __________ is the process by which mRNA is translated into protein.
Translation
What is genetic drift?
A change in allele frequency due to random sampling.
Multiple choice: Which of the following is a mechanism of evolution? A) Natural selection B) Genetic drift C) Mutation D) All of the above
D) All of the above
True or False: Evolution occurs in individuals.
False
Fill in the blank: The __________ is a group of organisms that can interbreed and produce fertile offspring.
Species
What is an ecosystem?
A community of living organisms and their physical environment.
Multiple choice: Which of the following is a biotic factor in an ecosystem? A) Water B) Soil C) Plants D) Temperature
C) Plants
True or False: Decomposers break down dead organisms and recycle nutrients.
True
Fill in the blank: The __________ is the role an organism plays in its environment.
Niche
What is the primary source of energy for life on Earth?
The Sun
Multiple choice: Which of the following is an example of mutualism? A) Bees pollinating flowers B) A lion hunting a zebra C) A tick feeding on a dog D) A bird eating insects off a cow
A) Bees pollinating flowers
True or False: Biodiversity refers to the variety of life in an ecosystem.
True
Fill in the blank: __________ are organisms that produce their own food through photosynthesis.
Autotrophs
What is the greenhouse effect?
The warming of Earth due to greenhouse gases trapping heat.
Multiple choice: Which gas is primarily responsible for climate change? A) Oxygen B) Carbon dioxide C) Nitrogen D) Hydrogen
B) Carbon dioxide
True or False: Ecosystems are static and do not change over time.
False
Fill in the blank: __________ is the process of converting nitrogen gas into a usable form for plants.
Nitrogen fixation
What is the primary role of fungi in an ecosystem?
Decomposition
Multiple choice: Which of the following is a primary consumer? A) Grass B) Rabbit C) Fox D) Eagle
B) Rabbit
True or False: All ecosystems have a food chain.
True
Fill in the blank: The highest level of organization in an ecosystem is the __________.
Biosphere
What is an invasive species?
A non-native species that disrupts local ecosystems.
Multiple choice: Which of the following factors can affect population size? A) Birth rate B) Death rate C) Immigration D) All of the above
D) All of the above