Bio cell structure Flashcards
What is the basic unit of life?
The cell.
True or False: All living organisms are made up of cells.
True.
What structure surrounds the cell and controls the movement of substances in and out?
The cell membrane.
What is the function of the nucleus in a cell?
It contains the genetic material and controls cellular activities.
Fill in the blank: The jelly-like substance inside the cell is called __________.
cytoplasm.
What organelle is responsible for producing energy in the form of ATP?
Mitochondria.
What is the role of ribosomes in a cell?
They are the site of protein synthesis.
True or False: Plant cells have a cell wall.
True.
What is the function of the cell wall?
To provide structure and support to the cell.
What organelle is responsible for photosynthesis in plant cells?
Chloroplast.
What is the function of the endoplasmic reticulum?
To synthesize proteins and lipids.
Multiple Choice: Which of the following is NOT found in prokaryotic cells? A) Nucleus B) Ribosomes C) Cell membrane
A) Nucleus.
Fill in the blank: The __________ is the control center of the cell.
nucleus.
What organelle modifies and packages proteins for secretion?
Golgi apparatus.
True or False: Lysosomes contain digestive enzymes.
True.
What is the role of the cytoskeleton?
To provide structural support and shape to the cell.
What is the function of vacuoles in plant cells?
To store substances and maintain turgor pressure.
Multiple Choice: Which type of cell lacks a defined nucleus? A) Eukaryotic B) Prokaryotic C) Both
B) Prokaryotic.
What is the primary component of the cell membrane?
Phospholipids.
Fill in the blank: The __________ is a semi-permeable barrier that surrounds the cell.
cell membrane.
What is the function of chlorophyll?
To absorb light energy for photosynthesis.
True or False: Animal cells have a cell wall.
False.
What is the primary role of the nucleolus?
To produce ribosomal RNA (rRNA).
What organelle is known as the ‘powerhouse of the cell’?
Mitochondria.
Fill in the blank: Cells that contain a nucleus are called __________ cells.
eukaryotic.
What is the function of the plasma membrane?
To regulate the movement of substances into and out of the cell.
Multiple Choice: Which organelle is involved in detoxifying harmful substances? A) Lysosome B) Smooth ER C) Golgi Apparatus
B) Smooth ER.
What structure gives plant cells their rigid shape?
Cell wall.
True or False: Ribosomes can be found floating freely in the cytoplasm.
True.
What is the function of the rough endoplasmic reticulum?
To synthesize proteins and transport them.
Fill in the blank: The __________ is responsible for packaging and shipping proteins.
Golgi apparatus.
What is the role of centrioles in animal cells?
To assist in cell division.
Multiple Choice: Which structure helps maintain the turgor pressure in plant cells? A) Chloroplast B) Vacuole C) Cell wall
B) Vacuole.
What is the function of the cell’s cytoplasm?
To provide a medium for chemical reactions and house organelles.
True or False: All cells have a nucleus.
False.
What is the primary function of lysosomes?
To digest excess or worn-out organelles, food particles, and engulfed viruses or bacteria.
Fill in the blank: The __________ is a network of protein filaments that helps the cell maintain its shape.
cytoskeleton.
What is the main function of the vacuole in animal cells?
To store nutrients and waste products.
Multiple Choice: Which of the following is a function of the Golgi apparatus? A) Energy production B) Protein modification C) DNA replication
B) Protein modification.
What is the function of the cell membrane’s phospholipid bilayer?
To create a barrier that separates the inside of the cell from the outside environment.
True or False: Mitochondria are involved in cellular respiration.
True.
What is the role of chloroplasts in plant cells?
To carry out photosynthesis.
Fill in the blank: The __________ produces ribosomes.
nucleolus.
What are the two main types of cells?
Prokaryotic and eukaryotic.
Multiple Choice: Which organelle is involved in lipid synthesis? A) Rough ER B) Smooth ER C) Nucleus
B) Smooth ER.
What structure do plant cells have that animal cells do not?
Cell wall.
True or False: The cytoplasm is found outside the nucleus.
True.
What is the primary function of the nucleus?
To store genetic information.
Fill in the blank: The __________ is a membrane-bound sac that contains digestive enzymes.
lysosome.
What is the main function of the endoplasmic reticulum?
To synthesize and transport proteins and lipids.
Multiple Choice: Which of the following structures is responsible for protein synthesis? A) Mitochondria B) Ribosomes C) Golgi apparatus
B) Ribosomes.
What is the role of the cell membrane?
To protect the cell and control the entry and exit of substances.
True or False: Chloroplasts are found in animal cells.
False.
What organelle is involved in the detoxification of drugs and poisons?
Smooth endoplasmic reticulum.
Fill in the blank: The __________ helps in the movement of materials within the cell.
cytoskeleton.
