Cell Theory
Which of the following scientists contributed to the cell theory?
A. Rudolf Virchow, Albert Einstein, Anton van Leuwenhoek
B. Matthais Schleiden, Theodor Schwann, Rudolf Virchow
C. Robert Hooke, Charles Darwin, Anton von Leuwenhoek
D. George Clooney, Matthais Schleiden, Charlie Sheen
C. Robert Hooke, Charles Darwin, Anton von Leuwenhoek
Prophase, metaphase, anaphase, telophase
How many Daughter cells do you end up with at the end of Meiosis 2?
4
What is the main function of the Golgi Apparatus?
To process and deliver proteins
The cell membrane is selectively permeable, which means...
Certain things can enter while others cannot
Unlike eukaryotes, prokaryotes do not have:
A) DNA
B) cytoplasm
C) cell walls
D) a membrane bound nucleus
D) a membrane bound nucleus
During which stage of mitosis do the centromeres split?
Anaphase
When does crossing over occur?
Prophase 1
Name an organelle unique to plant cells?
Chloroplast, Cell Wall
Membranes are made up of two layers of what?
Lipids (Phospholipid bilayer)
Which of the following statements is NOT part of the cell theory?
A) Cells are the basic unit of structure and function in all living things.
B) All cells are produced from other cells.
C) Only animal cells are composed of cells.
D) All living things are composed of cells.
C. Only animal cells are composed of cells.
During which stage of mitosis does cytokinesis usually occur in animals?
Telophase
When does DNA replication take place?
Interphase
Which organelle contains enzymes that break down damaged cell parts?
Lysosomes
Which phrase describes passive transport?
A) requires transport proteins
B) requires no energy from the cell
C) requires isotonic solution
D) requires facilitation by enzymes
B) requires no energy from the cell
What is one way in which all living things on Earth are alike?
A) All living things have hair.
B) All living things are made of cells and come from other cells.
C) The cells of all living things have chloroplast.
D) All living things can move.
B) All living things are made of cells and come from other cells.
During which stage of mitosis does the nuclear envelope begin to disappear?
Prophase
Where during Meiosis 2 do chromosomes line up?
Which best describes rough ER?
A) studded with ribosomes
B) protected by vesicles
C) connected to Golgi Apparatus
D) stored in the vacuole
A) studded with ribosomes
What is the term for the diffusion of water across a semipermeable membrane?
osmosis
Tiny structures that carry out cell functions are collectively called:
A) animalcules
B) organelles
C) tissues
D) ribosomes
B) organelles
During which phase of mitosis do spindle fibers first form?
Prophase
What happens during Anaphase 1?
Chromosomes move to opposite poles of the cell
Which of the following is a network of proteins that supports and gives shape to a cell?
vesicles
vacuole
cytoskeleton
cytoplasm
Cytoskeleton
The ____ portion of the cell membrane functions as a barrier while the ____ portion determines specific functions, including pumps, receptors, adhesion, etc.
(carbohydrate, nucleic acid, lipid, nucleic acid, protein)
lipid, protein