Description : A student coming out cell fractionation of a tissue and forgot to label his tubes. The contents of one tube when studied showed organelles bounded by
Last Answer : A student coming out cell fractionation of a tissue and forgot to label his tubes. The contents of ... . SER B. Chloroplast C. Lysosome D. Perosisome
Description : Eukaryotic cells have extensive intracellular membranes, termed the endomembrane system, which divide the cell into structurally and functionally distinct compartments, or organelles. These include the inner cell ... . Name a cellular component whose membrane is not part of the endomembrane system.
Last Answer : Mitochondria; also chloroplasts
Description : Are larger cells with membrane-bounded organelles?
Last Answer : booty hole
Description : The experimental proof for semi-conservative replication of DNA was first shown in a (a) fungus (b) bacterium (c) plant (d) virus
Last Answer : (b) bacterium
Description : The experimental proof for semiconservative replication of DNA was first shown in a (1) Fungus (2) Bacterium (3) Plant (4) Virus
Last Answer : (2) Bacterium
Description : Cellular organelles with membranes are
Last Answer : Cellular organelles with membranes are A. Lysosomes, Golgi apparatus and mitochonria B. Nuclei, ... D. Endoplasmis reticulum, ribosomes and nuclei
Description : Cellular organelles with membranes are (a) endoplasmic reticulum, ribosomes and nuclei (b) lysosomes, Golgi apparatus and mitochondria (c) nuclei, ribosomes and mitochondria (d) chromosomes, ribosomes and endoplasmic reticulum.
Last Answer : (b) lysosomes, Golgi apparatus and mitochondria
Description : How do to observe the surface features of a bacterium you would use a?
Last Answer : electron microscope.
Description : When observing the fungus under the light microscope the stundent stated that chloroplasts were present.do you think that the student observation was correct?
Last Answer : The student's observation was not correct: fungi have nochloroplasts, plants do.
Description : Which one of the following is true of the hypha? a. It is the morphological unit of the fungus. b. It is visible without a microscope. c. It lacks a cell wall. d. None of the above (A-C) is true.
Last Answer : a. It is the morphological unit of the fungus.
Description : If you wanted to study bacterial motility you would most likely use a. A transmission electron microscope. b. A tight microscope with dark-field optics. c. A scanning electron microscope. d. A light microscope with phase-contrast optics.
Last Answer : a. A transmission electron microscope.
Description : What if Ian is looking at cells using a microscope. He sees a nucleus and a large vacuole in the central area of a cell. What type of cell is he most likely looking at?
Last Answer : I need help on my science homework!!!
Description : What did Leeuwenhoek and Hooke observe in the microscope?
Last Answer : Born in Delft in The Netherlands in 1632 and died in 1723.
Description : Using a standard microscope to inspect a fiber-end face, you observe that all parts of the fiberend face are in focus at the same time. Is the fiber-end face flat, concave, or convex?
Last Answer : Flat.
Description : What causes mumps? A. Fungus B. Bacterium C. Deficiency of vitamins D. Virus (Answer)
Last Answer : D. Virus (Answer)
Description : Why does The fungus damages bat wings causing small holes and scar tissue to appear in the membranes. What is a possible effect of this damage to bat wings?
Last Answer : idk maybe because they are stinky
Description : The antibiotic penicillin is obtained from which of the following? (1) synthetic process (2) a bacterium (3) fungus (4) virus infected cells
Last Answer : (3) fungus Explanation: Penicillins are a group of antibiotics used to treat a large range of bacterial infections. They are derived from Penicillium fungi and can be taken orally or via injection. Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming.
Description : Polio is caused by - (1) Bacterium (2) Fungus (3) Virus (4) Insect
Last Answer : (3) Virus Explanation: Poliomyelitis , often called polio or infantile paralysis, is an acute, viral, infectious disease spread from person to person, primarily via the fecal-oral route.
Description : Litmus is obtained from – (1) a bacterium (2) a fungus (3) an alga (4) lichen
Last Answer : (4) lichen Explanation: Litmus is a water-soluble mixture of different dyes extracted from lichens, especially Roccellatinctoria. It is often absorbed onto filter paper to produce one of the ... litmus paper is purple. Litmus can also be prepared as an aqueous solution that functions similarly
Description : The unequivocal proof of DNA as the genetic material came from the studies on a (a) bacterium (b) fungus (c) viroid (d) bacterial virus.
Last Answer : (c) viroid
Description : The fungus Candida albicans has been known to infect a. The human intestine. b. The mucous membranes of the oral cavity. c. The female vagina. d. All the above (a-c) are correct.
Last Answer : d. All the above (a-c) are correct.
Description : The antibiotic penicillin is obtained from which of the following ? (1) synthetic process (2) a bacterium (3) fungus (4) virus infected cells
Last Answer : fungus
Description : Polio is caused by (1) Bacterium (2) Fungus (3) Virus (4) Insect
Last Answer : Virus
Description : Litmus is obtained from (1) a bacterium (2) a fungus (3) an alga (4) lichen
Last Answer : lichen
Description : Eukaryotic cell organelles first emerged A.from a specialized lineage of cells within the kingdom Protista B.when prokaryotes engulfed each other and became interdependent C.when bacteria made their first attempts at reproduction D.just before the origin of the animal and fungal kingdoms
Last Answer : B.when prokaryotes engulfed each other and became interdependent
Description : The basic structure of cell membranes (a) Is a lipid bilayer that serves as a barrier to water soluble molecules (b) Differs ultra structurally for internal and external membranes ... dispersed within a protein bilayer (d) Is visualised as bilaminar structure with transmission electron microscopy
Last Answer : Ans:(a)
Description : What is The gooey liquid in plant and animal cell that holds the cells organelles?
Last Answer : fghjkl;'
Description : Which of the following organelles or structures is found in both plant and animal cells? (A) Central vacuole (B) Tonoplast (C) Cell wall (D) Peroxisomes
Last Answer : (D) Peroxisomes
Description : The kinetic energy of a bounded electron is?
Last Answer : The kinetic energy of a bounded electron is less than that of unbounded electron.
Description : (a) granular structure (b) first observed under the electron microscope as dense particles by Geprge Palade ( c ) composed of RNA and proteins not sur
Last Answer : (a) granular structure (b) first observed under the electron microscope as dense particles by ... Nucleolus B. Ribosomes C. Cristae D. Chloroplast
Description : What are the structures called that give an appearance as ‘beads-on-string’ in the chromosomes when viewed under electron microscope? (a) Genes (b) Nucleotides (c) Nucleosomes (d) Base pairs
Last Answer : Nucleosomes
Description : The _____ microscope would be used to view cell structures within ultrathin sections of cells. a. scanning electron b. transmission electron c. bright-field d. dark-field
Last Answer : b. transmission electron
Description : If you wanted to study the surface of a bacterial cell, you would use a. A transmission electron microscope. b. A light microscope with phase-contrast optics. c. A scanning electron microscope. d. A light microscope with dark-field optics.
Last Answer : c. A scanning electron microscope.
Description : A three dimensional image is obtained by a)Electron microscope b) Scanning electron microscope c) Magnetic imaging d)None of these
Last Answer : b) Scanning electron microscope
Description : By which of the following can movement of materials across animal cell membranes be accomplished? I Active transport, II Diffusion, III Pinocytosis (A) I only (B) II only (C) I and II only (D) All I, II, and III
Last Answer : Will be only two.
Description : Which of the following is most likely to be a response to the auditor's assessment that the risk of material misstatement due to fraud for the existence of inventory is high? a. Observe test counts ... be counted on different dates so as to allow the same auditor to be present at every count
Last Answer : Observe test counts of inventory at certain locations on an unannounced basis.
Description : Which of the following is exposed on the outer surface of a gram-negative bacterium?A- O-antigen of lipopolysaccharide (LPS) B- Polysaccharide portion of lipoteichoic acid (LTA) C- Braun lipoprotein D- .Electron transport system components
Last Answer : O-antigen of lipopolysaccharide (LPS)
Description : Select the correct statement from the following. (a) Biogas is produced by the activity of aerobic bacteria on animal waste. (b) Methanobacterium is an aerobic bacterium found in rumen of ... sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria.
Last Answer : (d) Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria.
Description : When viewed under a microscope a sample of tissue reveals striations and long thin fibers that contain many nuclei and mitochondria. What type of tissue is most likely being viewed?
Last Answer : Need answer
Description : Cells are commonly studied in the lab. If you were examining various unlabelled slides of cells under the microscope, you could tell if the cell was from a plant by the presence of (A) A nucleus (B) A cell membrane (C) Cytoplasm (D) A cell wall
Last Answer : (D) A cell wall
Description : A stream tube is that, which has __________ cross-section entirely bounded by stream lines. (A) A circular (B) Any convenient (C) A small (D) A large
Last Answer : (B) Any convenient
Description : Metals are good conductors of electricity because they have: (a) Large number of bounded electrons (b) Small number of electrons (c) Large number of free electrons (d) Small number of free electrons
Last Answer : (c) Large number of free electrons
Description : On which property of electrons does the electron microscope work?
Last Answer : Answer: Wave nature.
Description : What is the magnification of an electron microscope?
Last Answer : Answer: 100000.
Description : The construction of electron microscope was based on?
Last Answer : Dual Nature of Matter
Description : Other than electrons, what else can you magnify and view with an electron microscope?
Last Answer : My Paycheck
Description : What is the difference between a Light Microscopes and an Electron Microscope?
Last Answer : The optical microscope is the most common. It uses light to image a sample that is too small to be seen by the naked eye.The scanning electron microscope examines the surface of objects using an electron beam and measuring reflection.Short Answer = Resolution.
Description : What is the difference between how a light microscope magnifies an image and how an electron microscope magnifies an image?
Last Answer : What is the answer ?
Description : How many electron microscope in Pakistan and which place?
Last Answer : 1