Biology - Cells Flashcards
(43 cards)
What is the basic unit of life?
Cell
True or False: All living organisms are made of cells.
True
What structure controls the movement of substances in and out of the cell?
Cell membrane
Fill in the blank: The jelly-like substance inside the cell is called ______.
Cytoplasm
What organelle is known as the powerhouse of the cell?
Mitochondria
What is the function of ribosomes?
Protein synthesis
Which part of the cell contains the genetic material?
Nucleus
True or False: Plant cells have a cell wall.
True
What is the function of the cell wall?
Provides structure and support
What organelle is responsible for photosynthesis?
Chloroplast
Fill in the blank: ______ are specialized structures within a cell that perform specific functions.
Organelles
What is the primary function of the endoplasmic reticulum?
Protein and lipid synthesis
Multiple Choice: Which of the following is NOT a type of cell? a) Prokaryotic b) Eukaryotic c) Photosynthetic d) Bacterial
c) Photosynthetic
What is the role of the Golgi apparatus?
Modifying, sorting, and packaging proteins
True or False: All cells have a nucleus.
False
What is the function of lysosomes?
Digestion and waste removal
Fill in the blank: The ______ is a network of protein filaments that helps the cell maintain its shape.
Cytoskeleton
What type of cell lacks a membrane-bound nucleus?
Prokaryotic cell
Multiple Choice: Which organelle is involved in detoxifying harmful substances? a) Ribosome b) Lysosome c) Smooth ER d) Nucleus
c) Smooth ER
What is the difference between plant and animal cells?
Plant cells have a cell wall and chloroplasts; animal cells do not.
True or False: The nucleus is surrounded by a double membrane.
True
What is the role of the plasma membrane?
Regulates what enters and exits the cell.
Fill in the blank: The ______ is a semi-permeable barrier that surrounds the cell.
Cell membrane
What is the function of vacuoles in plant cells?
Storage of substances and maintaining turgor pressure