b1 Flashcards
(32 cards)
What is the basic unit of life?
The cell.
True or False: DNA stands for Deoxyribonucleic Acid.
True.
Fill in the blank: The process by which plants convert sunlight into energy is called ______.
photosynthesis.
What is the function of ribosomes in a cell?
Ribosomes are responsible for protein synthesis.
Multiple Choice: Which of the following is a type of cell division?
Mitosis.
What are the two main types of cells?
Prokaryotic and Eukaryotic.
True or False: All living organisms are made up of cells.
True.
What is the role of the mitochondria?
Mitochondria are known as the powerhouse of the cell, producing energy.
Fill in the blank: The genetic material of an organism is found in its ______.
DNA.
Multiple Choice: What is the primary function of the cell membrane?
To protect the cell and regulate what enters and leaves.
What is the difference between aerobic and anaerobic respiration?
Aerobic respiration requires oxygen, while anaerobic respiration does not.
True or False: Enzymes are proteins that speed up chemical reactions in the body.
True.
What is homeostasis?
The maintenance of a stable internal environment in an organism.
Fill in the blank: The __________ is the part of the cell that contains the nucleus.
cytoplasm.
Multiple Choice: Which of the following is NOT a macromolecule?
Water.
What is the purpose of the chloroplast?
Chloroplasts are responsible for photosynthesis in plant cells.
True or False: All cells have a nucleus.
False.
What is a mutation?
A change in the DNA sequence of an organism.
Fill in the blank: The __________ theory states that all living things are composed of cells.
cell.
Multiple Choice: Which organelle is responsible for packaging proteins?
Golgi apparatus.
What is the role of the lysosome?
Lysosomes digest waste materials and cellular debris.
True or False: Osmosis is the movement of water across a semi-permeable membrane.
True.
Fill in the blank: The __________ is the semi-permeable membrane surrounding the cell.
cell membrane.
What does the term ‘species’ refer to?
A group of organisms that can interbreed and produce fertile offspring.