B1 - Cell Biololgy Flashcards
What is the basic unit of life?
The cell.
True or False: All living organisms are made up of cells.
True.
What structure controls the movement of substances in and out of the cell?
The cell membrane.
Fill in the blank: The jelly-like substance inside a cell is called ______.
cytoplasm.
What is the function of the nucleus?
To store genetic information and control cell activities.
Which organelle is responsible for energy production?
Mitochondria.
What is the function of ribosomes?
To synthesize proteins.
True or False: Plant cells have chloroplasts.
True.
What is the function of chloroplasts?
To carry out photosynthesis.
Fill in the blank: The rigid outer layer of a plant cell is called the ______.
cell wall.
What is the role of the vacuole in a plant cell?
To store nutrients and maintain turgor pressure.
What type of cell lacks a nucleus?
Prokaryotic cell.
Multiple choice: Which of the following is a prokaryotic organism? A) Plant B) Animal C) Bacteria D) Fungus
C) Bacteria.
True or False: All cells have a cell wall.
False.
What is osmosis?
The movement of water molecules from a region of lower solute concentration to a region of higher solute concentration through a semi-permeable membrane.
Fill in the blank: The process by which cells divide to produce two identical daughter cells is called ______.
mitosis.
What are stem cells?
Undifferentiated cells that can develop into different cell types.
Multiple choice: Which of the following is NOT a function of the cell membrane? A) Protection B) Regulation of substances C) Energy production D) Communication
C) Energy production.
True or False: Eukaryotic cells are generally larger than prokaryotic cells.
True.
Fill in the blank: The process of converting glucose into energy in the presence of oxygen is called ______.
aerobic respiration.
What is the difference between diffusion and active transport?
Diffusion is the passive movement of molecules from high to low concentration, while active transport requires energy to move molecules against their concentration gradient.
What is the purpose of cell specialization?
To allow cells to perform specific functions efficiently.
True or False: All cells in an organism have the same DNA.
True.
What is the role of the plasma membrane?
To protect the cell and control the movement of substances in and out.
Multiple choice: Which organelle is known as the powerhouse of the cell? A) Nucleus B) Ribosome C) Mitochondria D) Golgi apparatus
C) Mitochondria.
Fill in the blank: The green pigment found in chloroplasts is called ______.
chlorophyll.
What are the two main types of cells?
Prokaryotic and eukaryotic cells.
True or False: Bacteria are eukaryotic cells.
False.
What is the function of the cell wall in plant cells?
To provide structure and protection.
What is the primary role of DNA in a cell?
To store and transmit genetic information.
Multiple choice: Which of the following is NOT found in a plant cell? A) Chloroplast B) Cell wall C) centrioles D) Vacuole
C) Centrioles.
What process do cells use to produce energy without oxygen?
Anaerobic respiration.
Multiple choice: Which structure is responsible for protein synthesis? A) Lysosome B) Ribosome C) Nucleus D) Mitochondria
B) Ribosome.
What is diffusion
The spreading out of particles from an area of high concentration to an area of low concentration
What is the formula for magnification
Magnification = image size / real size
What are the different parts of a microscope called
Eyepiece, stage, objective lens and coarse adjustment knob
