Bio final
Which of the following is not an organic molecule?
CaCO
The stack of thylakoids labeled "A" in this figure is called
Granum
Both plants and animals need mitochondria to
produce ATP
Chromosomes are made from
condensed chromatin
What molecule most directly provides the energy you need for your muscles to contract?
ATP
You are looking at a cell under a microscope and see what appears to be several "X" structures being pulled to each side of the cell. What stage of meiosis are you looking at?
Anaphase I
Which organisms have been modified to produce insulin, blood clotting factor VIII, and human growth hormone?
Bacteria
A cell being observed under a microscope has a cell wall, plasma membrane, ribosomes, and chromosomal material that is not found in a nucleus. Based on this information, the cell could be a
Bacterial cell
Which statement below is correct when comparing plant and animal cells?
Both plant and animal cells have a plasma membrane, and plant cells also have a cell wall.
The main structural component of a plant cell wall is
Cellulose
Inside a living cell, which type of bond would be the most stable?
Covalent
The central dogma of molecular biology states that the information contained within genes flows in which direction?
DNA to mRNA to protein
DNA replication makes a(n) ________ copy of the DNA strand, while transcription makes a(n) ________ copy of the DNA strand.
DNA; mRNA
Where do the vesicles that are being made for secretion from the cell become modified and packaged?
Golgi apparatus
An atom that has an electrical charge is called a(n)
Ion
The type of bond that would form from the transfer of an electron from one atom to another, shown below, is a(n) ________ bond.
Ionic
Carrie would like to observe the cilia on the surface of a live paramecium—a single-celled organism. The best device to do this would be a
Light microscope
In bacterial cells and plant cells, cell walls function in
Maintaining cell shape
What organelle is used during the process of cellular respiration?
Mitochondria
Which organelle is required for producing ATP for cellular work?
Mitochondria
The final electron acceptor at the end of the electron transport chain is ________, resulting in formation of ________.
Oxygen; water
What must materials pass through to enter or leave a cell?
Plasma membrane
Plant cells can communicate with each other via ________, as indicated by the arrow in the figure.
Plasmodesmata
________ is the study of the structure and function of cellular proteins and their interactions; ________ may be employed to use computer algorithms to aid this process.
Proteomics; bioinformatics
Which of the following organelles is not surrounded by a membrane?
Ribosomes
A karyotype shows chromosomes arranged by
banding patterns, size, and shape
Without receptor proteins, a cell would not be able to
bind to signal proteins from other parts of the body.
The four main categories of organic macromolecules are
carbohydrates, lipids, proteins, and nucleic acids.
Without tight junctions in certain tissues
fluids may leak out past the barrier the junction would create
Which of the following is the correct sequence of events in cellular respiration?
glycolysis, preparatory reaction, citric acid cycle, electron transport chain
Eukaryotic cells move their organelles using
the cytoskeleton
Isotopes of an element differ in their
neutron number
Susan was examining a cell under the microscope and noticed the formation of a cell plate in the midline of the cell and the formation of nuclei at opposite poles of the cell. The cell under examination was most likely a(n)
plant cell undergoing cytokinesis.
Which feature is found in all cells?
plasma membrane composed of phospholipids
Which of the following is the correct sequence for an altered protein that is secreted from the cell?
rough endoplasmic reticulum - Golgi apparatus - plasma membrane
Cell size is limited because ________ is critical to a cell's function.
surface-area-to-volume ratio