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Ch 5 eukaryotic cell
| Question | Answer |
|---|---|
| which is found in eukaryotic cells, not in prokaryotic: Nucleus, mitochondria, endoplasmic reticulum, lysosomes, all of the choices | all of the choices |
| biologists have found evidence that eukaryotic cells evolved from prok org’s by a process of intracellular: symbiosis, parasitism, communalism, none of these | symbiosis |
| when a euk cell is NOT undergoing mitosis the DNA and its assoc proteins appear as a visible thread-like mass called: nuclear envelope, nucleosome, nucleolus, nucleoplasm, chromatin | chromatin |
| euk flagella differ from prokaryotic flagella because only euk flagella: are used for cell motility, facilitate chemo taxis, facilitate photo taxis, are long whip-like structures, contain microtubules | contain microtubules |
| T/F …. rough endoplasmic reticulum is studded with ribosomes | true |
| Chloroplasts are composed of membranous sacks called ___ that carry chlorophyll. Surrounding these sacks is a ground substance called ___: thylakoids-stroma,granna-stroma, cristae-matrix, cristae-stroma, thylakoid-matrix | thylakoids – stroma |
| Cilia are found in certain: protozoa, algae, fungi, bacteria, all | protozoa |
| An organelle that’s a stack of flattened, membranous sacs, & fn’s to receive, modify & pkg proteins for cell secretion: mitochondria, lysosomes, Golgi apparatus, chloroplasts, ER | Golgi apparatus |
| The site for ribosomal RNA synth is the: ribosome, nucleolus, nucleus, golgi apparatus, lysosome | nucleolus |
| The motile, feeding stage of protozoa is called the: trophozoite, cyst, sporozoite, oocyst, food vacuole | trophozoite |
| All of the following are helminths except: pinworms, flukes, trypanosomes, roundworms, tapeworms | trypanosomes |
| The long, thread-like branching cells of molds are called: conidiophores, pseudohyphae, hyphae, septate, ascus | hyphae |
| The eukaryotic cell’s glycocalyx is: mostly polysaccharide, the site where many metabolic reactions occur, also called cell wall, composed of many diverse proteins, protection against osmotic lysis | mostly polysaccharide |
| Fungal asexual spores: only produced under harmful env condit’s, are only asexually produced, cant be seen in a light microscope, are produced by molds but not yeasts, used to identify fungi | used to identify fungi |
| What 2 cat’s of fungi cause human diseases: primary & secondary, primary & vegetative, opportunistic & primary, secondary & opportunistic, vegetative & reproductive | opportunistic & primary |
| In euk cells, ribosomes have 2 loc’s: scattered in the ___ & on the surface of ___: cytoplasm& golgi, nucleus& golgi, cytoplasm& ER, Cytoplasm & golgi, nucleus & ER | cytoplasm& ER |
| The size of a eukaryotic cell ribosome is: 30S, 40S, 50S, 70S, 80S | 80S |
| Fungi that grow as yeast at 1 temp but grow as mold at another temp are called: dimorphic, saprobes, pseudohyphae, spores, parasites | dimorphic |
| Chitin is a chemical component of the cell walls of: protozoa, algae, fungi, bacteria, all | fungi |
| Which is not a characteristic of fungi: cells have cell walls, photosynthetic, include single-celled & filamentous forms, heterotrophic nutrition, can use a wide variety of nutrients | photosynthetic |
| Protists with contractile vacuoles: are algae, use them to expel excess water from the cell, typically live in salty seawater, use them for motility, all | use them to expel excess water from the cell |
| t/f… Chromosomes are generally not visible in the nucleus unless the cell is undergoing nuclear division | true |
| T/F… all algae have chloroplasts | false |
| During unfavorable growth condit’s, many protozoa can convert to a resistant, dormant stage called: endospore, cyst, seed, trophozoite, sporozoa | cyst |
| T/F… In humans, fungi can only infect the skin | false |
| The passageways in the nuclear envelope for movement of substances to and from the nucleus & cytoplasm are nuclear: histones, chromatin, pores, ER, inclusions | pores |
| Most fungi obtain nutrients from dead plants & animals. These fungi are called: saprobes, parasites, substrates, nonseptate, dimorphic | saprobes |
| Protists include: yeasts & molds, algae & protozoa, helminthes, all, none | algae & protozoa |
| Which of the following is not a fn of the eukaryote glycocalyx: protection, adherence, movement, reception of chemical signals, all | movement |
| T/F… all fungi cause some kind of disease in plants & animals | false |
Created by:
higgins5163