A.1 Flashcards
What is the basic unit of life?
The cell.
True or False: Prokaryotic cells have a nucleus.
False.
Fill in the blank: The process by which cells convert glucose into energy is called _____.
cellular respiration.
What are the two main types of cells?
Prokaryotic and eukaryotic cells.
Multiple Choice: Which organelle is known as the powerhouse of the cell? A) Ribosome B) Mitochondria C) Nucleus D) Golgi apparatus
B) Mitochondria.
What is the function of ribosomes?
To synthesize proteins.
True or False: DNA is double-stranded.
True.
Fill in the blank: The _____ is the semi-permeable membrane surrounding the cell.
plasma membrane.
What is the role of the endoplasmic reticulum?
To synthesize proteins and lipids.
Multiple Choice: Which of the following is NOT a component of the cell theory? A) All living things are made of cells B) Cells arise from pre-existing cells C) Cells are the basic unit of life D) Cells can arise spontaneously
D) Cells can arise spontaneously.
What is the primary function of the Golgi apparatus?
To modify, sort, and package proteins for secretion.
True or False: Chloroplasts are found in animal cells.
False.
Fill in the blank: The _____ controls the movement of substances in and out of the cell.
plasma membrane.
What is osmosis?
The diffusion of water across a selectively permeable membrane.
Multiple Choice: Which process involves the uptake of large particles by a cell? A) Exocytosis B) Endocytosis C) Diffusion D) Osmosis
B) Endocytosis.
What is the function of lysosomes?
To digest waste materials and cellular debris.
True or False: All cells have a cell wall.
False.
Fill in the blank: _____ is the genetic material found in all living organisms.
DNA.
What is the role of the cytoskeleton?
To provide structural support and shape to the cell.
Multiple Choice: Which type of cell division results in two identical daughter cells? A) Meiosis B) Mitosis C) Binary fission D) Budding
B) Mitosis.
What is the term for programmed cell death?
Apoptosis.
True or False: The nucleus contains ribosomes.
False.
Fill in the blank: The _____ is a double membrane structure that contains the cell’s genetic material.
nucleus.
What is the function of the plasma membrane?
To protect the cell and regulate what enters and exits.
Multiple Choice: Which of the following is a characteristic of eukaryotic cells? A) No nucleus B) Membrane-bound organelles C) Smaller than prokaryotic cells D) Circular DNA
B) Membrane-bound organelles.
What is the primary role of chloroplasts?
To conduct photosynthesis.
True or False: All living organisms perform cellular respiration.
True.
Fill in the blank: The _____ is a network of protein filaments that helps the cell maintain its shape.
cytoskeleton.
What is the main purpose of the cell cycle?
To ensure proper cell division and replication.
Multiple Choice: Which phase of the cell cycle involves DNA replication? A) G1 phase B) S phase C) G2 phase D) M phase
B) S phase.
What is the significance of stem cells?
They have the ability to differentiate into various cell types.
True or False: All cells in an organism are identical.
False.
