Nucleus Flashcards
To understand the structure of the nucleus
What is the basic unit of life?
Cell
True or False: All cells have a nucleus.
False
What structure controls the movement of substances in and out of the cell?
Cell membrane
Fill in the blank: The jelly-like substance inside a cell is called ______.
Cytoplasm
What organelle is responsible for energy production in the cell?
Mitochondria
Which part of the cell is responsible for protein synthesis?
Ribosomes
True or False: The cell wall is present in animal cells.
False
What is the function of the endoplasmic reticulum?
Protein and lipid synthesis
What organelle contains digestive enzymes to break down waste?
Lysosomes
Which organelle is known as the ‘powerhouse of the cell’?
Mitochondria
Fill in the blank: The ______ is a network of protein filaments that helps the cell maintain its shape.
Cytoskeleton
What is the primary function of the Golgi apparatus?
Modification and packaging of proteins
True or False: Prokaryotic cells lack a defined nucleus.
True
What do you call the semi-permeable membrane surrounding the cell?
Plasma membrane
Which organelle is involved in the synthesis of lipids?
Smooth endoplasmic reticulum
What is the role of chloroplasts in plant cells?
Photosynthesis
Fill in the blank: The ______ is the control center of the cell.
Nucleus
What structure provides support and protection to plant cells?
Cell wall
True or False: Ribosomes can be found freely floating in the cytoplasm.
True
What is the function of the vacuole in plant cells?
Storage of substances and maintaining turgor pressure
Fill in the blank: The ______ is the site of ATP production in the cell.
Mitochondria
What is the role of the plasma membrane?
Regulates the entry and exit of substances
What is the difference between prokaryotic and eukaryotic cells?
Prokaryotic cells lack a nucleus; eukaryotic cells have a nucleus.
What organelle is involved in detoxifying harmful substances?
Smooth endoplasmic reticulum
True or False: All cells contain DNA.
True
What is the function of the nucleolus?
Ribosome production
Fill in the blank: The ______ are structures that help in cell division.
Centrioles
What is the primary function of peroxisomes?
Breakdown of fatty acids and detoxification
Which type of cell has a large central vacuole?
Plant cell
What is the fundamental difference between plant and animal cells?
Plant cells have a cell wall and chloroplasts; animal cells do not.
Which part of the cell is responsible for packaging and transporting proteins?
Golgi apparatus
Fill in the blank: The ______ is a double-membrane structure that contains the cell’s genetic material.
Nucleus
What is the role of the cytoskeleton?
Provides structural support and aids in cell movement
True or False: Chromatin is the uncoiled form of chromosomes.
True
What is the function of the rough endoplasmic reticulum?
Synthesis of proteins
What is the primary component of the cell membrane?
Phospholipids
Fill in the blank: The ______ are membrane-bound organelles that contain enzymes for digestion.
Lysosomes
What structure helps with the movement of cells?
Flagella or cilia
