Biology: Chapter 4

Which organelle breaks down organelles that are no longer useful?
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Which organelle breaks down organelles that are no longer useful?
lysosome
What organelles do plants and animals have in common?
Endoplasmic Reticulum, mitochondria, golgi apparatus
What is not a function of proteins?
store and transmit genetic information
What is a function of the nucleus?
stores DNA
cell membrane function
Controls what enters and leaves the cell
Cholorplast function
Make food and energy for plant cells
Mitochondria function
ATP production
Nucleus function
To produce the genetic material
ribosome function
protein synthesis
What is a function if the cytoskeleton?
Helps a cell keep its shape
Which organelles are involved in energy conversion?mitochondria and chloroplastsWhich organelle would you expect to find in plant cells but not animal cells?ChloroplastWhat organisms have ribosomes?Plants; animals; bacteriaDNA molecule stay in the nucleus; RNA molecules leave the nucleus and move through the cytoplasm to the ribosomes.TrueThe nucleus is made up of two parts; the nucleolus and nuclear membraneTrueWhat is a characteristic of both prokaryotic and eukaryotic cells?Both cells contain genetic materialIn what ways does the plasma membrane regulate the entry of the molecules into a cell?The membrane allows only certain molecules to move into the cellSome diseases decrease the activity of certain enzymes in the mitochondria of cells. Which of the following is the most direct result of this decreased enzyme activity?The cells produce less ATP by cellular respirationIf an organism's cells have damaged to its lysosomes, what symptoms would you expect to see?Limited growth because molecules, viruses, and worn-out organelles are not broken down and recycledWhich is an organelle that performs cellular respiration and is paired with its correct function?Mitochondrion- converts energy found in glucose into energy for use by the cell_______ contains a nucleus, while _____ do not.Eukaryotes; prokaryotesWhat do cholorplasts do?Trap light energy and change it into food for the cellWhich is the best example of an organism maintaining homeostasis?Mitochondria producing more ATP for a cheetah to fun faster.Why do our muscles need lots of mitochondria within their cells?Because muscles do a lot of work and the mitochondria give them extra energy to performMuscle cells are responsible for obtaining energy so the body can perform voluntary and involuntary movement. Using your knowledge about organelles and muscles, how would a muscle cell differ from other types of animal cells?The muscle cell would have more mitochondria than the other types of animal cellsTay-Sachs is a disease that occurs when lipids accumulate in cells. This lipid accumulation occurs because of the inability of the cell to break down lipids due to the lack of function of the organelle responsible for intracellular digestion. Which organelle is defective in Tay-Sachs disease?lysosomeCells found in plants and animals have similarities but can differ in function. Consider the following two organisms: a corn plant cell (Zea mays) and a camel cell (Bactrianus ferus). What is the best explanation for the difference in the cellular vacuole size between these two biotic organisms?The camel cells have a small vacuole size because it does not need long term water and electrolyte storage.Which macromolecule is the main component of cell membranes?LipidWhich type of bond is easily broken?Hydrogen bondsBacteria cells are this type of cellprokaryote cellAn organism that consists of a single cell that has no nucleus or membrane-bound organellesProkaryoteNerve cells and red blood cells have very different shapes. How do the shapes of these cells suit their functions?Nerve cells are long and branched for transmitting information, while red blood cells are small and round for traveling through capillaries to deliver oxygen.Which best explains why muscle cells have more mitochondria than skin cells?Muscles cells require more energy than skin cells.Which best explains why muscle cells are different from blood cells?Different genes are activated in muscle cells than in blood cells.Skin cells and liver cells contain different sets of enzymes. What conclusions can be made off of this information?Skin cells and liver cells can preform different chemical reactions