biology Flashcards
What is the basic unit of life?
Cell
True or False: All living organisms are made up of cells.
True
Fill in the blank: The process by which plants make their own food is called __________.
Photosynthesis
What organelle is responsible for energy production in a cell?
Mitochondria
Multiple Choice: Which of the following is NOT a part of the cell theory? A) All living things are made of cells B) Cells are the basic unit of life C) All cells have a nucleus D) All cells come from pre-existing cells
C) All cells have a nucleus
What is the function of ribosomes?
Protein synthesis
True or False: DNA is found in the nucleus of eukaryotic cells.
True
What is the term for the variety of life in the world or in a particular habitat?
Biodiversity
Fill in the blank: The main gas produced by plants during photosynthesis is __________.
Oxygen
Multiple Choice: What type of organism is a mushroom? A) Plant B) Animal C) Fungus D) Bacteria
C) Fungus
What is the role of chlorophyll in plants?
To absorb light energy for photosynthesis
True or False: Prokaryotic cells have a defined nucleus.
False
What process do cells undergo to divide and reproduce?
Mitosis
Fill in the blank: The molecule that carries genetic information is called __________.
DNA
Multiple Choice: Which of the following is a biotic factor in an ecosystem? A) Water B) Temperature C) Plants D) Soil
C) Plants
What is the primary function of the cell membrane?
To protect the cell and regulate what enters and exits
True or False: All animals are heterotrophs.
True
What is an ecosystem?
A community of living organisms interacting with their environment
Fill in the blank: The process by which organisms maintain a stable internal environment is called __________.
Homeostasis
Multiple Choice: Which organ system is responsible for transporting blood throughout the body? A) Respiratory B) Digestive C) Circulatory D) Nervous
C) Circulatory
What type of bond holds the two strands of DNA together?
Hydrogen bonds
True or False: All living things require energy to survive.
True
What is the primary role of decomposers in an ecosystem?
To break down dead organic matter and recycle nutrients
Fill in the blank: The smallest unit of an element is called an __________.
Atom
