B1 - Topic 1 - Key Concepts in biology Flashcards
(15 cards)
What is the basic unit of life?
The cell.
True or False: All living organisms are made up of one or more cells.
True.
Fill in the blank: The process by which cells obtain energy from glucose is called ______.
respiration.
What are the two main types of cells?
Prokaryotic and Eukaryotic.
Multiple Choice: Which organelle is responsible for protein synthesis? A) Mitochondria B) Ribosome C) Nucleus
B) Ribosome.
What is the function of the cell membrane?
To control the movement of substances in and out of the cell.
True or False: The nucleus contains the cell’s genetic material.
True.
Fill in the blank: DNA stands for ______.
Deoxyribonucleic acid.
What is photosynthesis?
The process by which green plants use sunlight to synthesize foods from carbon dioxide and water.
Multiple Choice: Which part of the plant is primarily responsible for photosynthesis? A) Roots B) Stems C) Leaves
C) Leaves.
What is the role of enzymes in biological reactions?
To speed up the reactions by lowering the activation energy.
True or False: Enzymes can be reused in multiple reactions.
True.
Fill in the blank: The main energy currency of the cell is ______.
ATP (Adenosine triphosphate).
What is the purpose of mitosis?
To produce two identical daughter cells for growth and repair.
Multiple Choice: What type of reproduction involves only one parent? A) Sexual B) Asexual
B) Asexual.
