they tend to \' - together 1) n BIOL 1406 Exam 2 Chapters 4&5 Multiple Choice 1)
ID: 198789 • Letter: T
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they tend to ' - together 1) n BIOL 1406 Exam 2 Chapters 4&5 Multiple Choice 1) When biologists wish to study the internal ultrastructufe of cells, they can achieve the finest resolution by using a/n A) light microscope. B) scanning electron microscope. C) transmission electron microscope D) electron microscope. 2) Which statement describes the difference between prokaryotic cells and eukaryotic cells? A) They both have nucleus and chloroplasts. Eukaryotic cells have plasma membranes where prokaryotic cells lack ribosomes C) Both contain organized compartrients of organelles. D) Prokaryotic cells lack centrosomes and and vacuoles. whereas eukaryotic cells contain nucleus 3) which structure-function pair is mismatched? A) ribosome-digestion, storage, and waste disposal C) peroxisome-protein synthesis D) vacuole-cellular respiration 4) Which structures are common to plants and animals? A) mitochondrion, cell wall, and lysosomes B) ribosomes, flagella, and plasma membrane CC)Golgi apparatus, cytoskeleton, and peroxisome D) chloroplasts, nucleus, and centrosome 5) What is the nuclear envelope lined within the nucleus? A) chromatins B) chromosomes C) nuclear lamina D) ribosomes 6) The passive transport of an ion through a protein carrier into a cell represents which of the following? (A) facilitated diffusion (B) osmosis (C) exocytosis (D) phagocytosisExplanation / Answer
1) The correct option is C. Transmission electronic microscope.
Transmission electron microscopy is a microscopy technique in which a beam of electrons is transmitted through a specimen to form an image.
2) The correct option is Prokaryotic cells lack centrosomes and lysosomes whereas eukaryotic cells contain nucleus and vacuoles.
Prokaryotic cells are unicellular and donot contain centrosomes and lysosomes.Eukaryotic cells contain true nucleus and vacuoles.
3) The correct option is B. lysosome - breakdown of ingested substance.
Ribosomes- Protein synthesis
Lysosome- Contains digestive enzyme that break down ingested materials, damaged or unneeded organelles and proteins.
Peroxisome- Contains enzymes that break down using hydrogen peroxide; used to break down fatty acid molecules, glyoxysomes in plant seeds convert fatty acids to sugar.
Central Vacuole- Storage of water, materials, wastes; maintains hydrostatic pressure; very large in plant cells.
4) The correct option is C.Golgi apparatus, cytoskeleton and peroxisome.
Plant and animal contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, cytoskeleton and peroxisomes.
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