Description : Which of the following is not true for prokaryotic organism? A.Nucleus is not bounded by nuclear membrane B.Chromosomes does not contain histones C.80S ribosomes are distributed in cytoplasm D.Cell wall contains peptidoglycan as one of the major component
Last Answer : C.80S ribosomes are distributed in cytoplasm
Description : Which of the following is not true for prokaryotic organism? A- Nucleus is not bounded by nuclear membrane B- Chromosomes does not contain histones C- 80S ribosomes are distributed in cytoplasm D- Cell wall contains peptidoglycan as one of the major component
Last Answer : 80S ribosomes are distributed in cytoplasm
Description : Which type of cell came first in evolution the eukaryotic cell or the prokaryotic cell ?
Last Answer : This is an interesting problem of biological evolution. The most accepted hypothesis asserts that the more simple cell, the prokaryotic cell, appeared early in evolution than the more ... from the mutualist ecological interaction between aerobic prokaryotes and primitive anaerobic eukaryotes.
Description : In eubacteria, a cellular component that resembles eukaryotic cell is (a) plasma membrane (b) nucleus (c) ribosomes (d) cell wall.
Last Answer : (a) plasma membrane
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 : During mitosis, the eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells. Mitosis progresses through five separate morphologically distinct phases. Name, in order, these five phases of mitosis.
Last Answer : Prophase, prometaphase, metaphase, anaphase, and telophase.
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 : The unifying feature of the archaea that distinguishes them from the bacteria is A- habitats which are extreme environments with regard to acidity B- absence of a nuclear membrane temperature ... of a cell wall containing a characteristic outer membrane D- cytoplasmic ribosomes that are 70S
Last Answer : absence of a nuclear membrane temperature
Description : Which of the following would you NOT find in a bacterial cell (A) DNA (B) Cell membrane (C) Golgi apparatus (D) Ribosomes
Last Answer : (C) Golgi apparatus
Description : A prokaryotic cell does not have which of the followin (1) Ribosomes (2) Cell membrane (3) Nucleus (4) DNA
Last Answer : (3) Nucleus Explanation: Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle. The word "prokaryotic" means "before nucleus." Prokaryotes include two groups: ... another group called archaea. In contrast, eukatyotic cells have etrue" nucleus containing their DNA.
Description : A prokaryotic cell does not have which of the following? (1) Ribosomes (2) Cell membrane (3) Nucleus (4) DNA
Last Answer : Nucleus
Description : Do all eukaryotic cells have nucleus and only one nucleus ?
Last Answer : There are eukaryotic cells without nucleus and others with more than one nucleus. Osteoclasts, the cells responsible for resorption of the osseous matrix, for example, are multinucleate cells; ... cells. Cell Nucleus Review - Image Diversity: cell nucleus miltinucleate cells enucleated cells
Description : The presence of what distinguishes a plant cell from an animal cell’? (1) Chloroplasts (2) Cell wall (3) Cell membrane (4) Nucleus
Last Answer : (1) Chloroplasts Explanation: Plant and animal cells have several differences and similarities. Animal cells do not have chloroplasts but plant cells do. Animal cells are round and irregular ... process called photosynthesis to make organic molecules from carbon dioxide and free oxygen from water.
Description : The presence of what distinguishes a plant cell from an animal cell? (1) Chloroplasts (2) Cell wall (3) Cell membrane (4) Nucleus
Last Answer : Chloroplasts
Description : Lysosomes arise from, (A) Nucleus (B) Endoplasmic reticulum (C) Golgi apparatus (D) Cell membrane
Description : Which of the following is not true for eukaryotic cells? A- Nucleus is bounded by nuclear membrane B- Chromosomes contain histones C- Chloroplasts and mitochondria contains 70S ribosomes D- Gas vacuoles are present
Last Answer : Gas vacuoles are present
Description : The three-dimensional network of protein filaments within the cytoplasm of eukaryotic cells is called the (A) Endoplasmic reticulum (B) Golgi apparatus (C) Cytoskeleton (D) None of these
Last Answer : (C) Cytoskeleton
Description : What are the main structures within the cell nucleus ?
Last Answer : Within the cell nucleus the main structures are: the nucleolus, an optically dense region, spherical shaped, where there are concentrated ribosomal RNA (rRNA) associated to proteins (there may be ... cell interphase; the karyotecha, or nuclear membrane, the membrane that delimits the nucleus.
Description : What is the difference between plasma membrane and cell wall ?
Last Answer : Plasma membrane and cell wall is not the same thing. Plasma membrane, also called cell membrane, is the outer membrane common to all living cells and it is made of a phospholipid bilayer, ... made of peptidoglycans and other organic substances. Cell Structure Review - Image Diversity: cell wall
Description : The outer most layer of cell wall is (A) Primary wall (B) Secondary wall (C) Middle lamella (D) Plasma membrane
Last Answer : (C) Middle lamella
Description : Plant cells contain the following 3 things not found in animal cells _________, _____________ and ______________. (A) Plastids / Chlorophyll / Membrane (B) Chloroplast / Cell wall / Golgi body (C) Plastids / Cell wall / Chlorophyll (D) Mitochondria / Cell wall /
Last Answer : (C) Plastids / Cell wall / Chlorophyll
Description : What is the name of the membrane that delimits the nucleus ?
Last Answer : To which component of the cell structure that membrane is contiguous? The nuclear membrane is also called karyotheca. The nuclear membrane is continuous to the endoplasmic reticulum membrane.
Description : Which are the cell organelles that participate in the cell division and in the formation of cillia and flagella of some eukaryotic cells ?
Last Answer : The organelles that participate in the cell division and in the formation of cilia and flagella of some eukaryotic cells are the centrioles. Some cells have cillia (paramecium, the bronchial ciliated ... are very important for cell division. Cell Structure Review - Image Diversity: centrioles
Description : What are the three main parts of a eukaryotic cell ?
Last Answer : The eukaryotic cell can be divided into two main portions: the cell membrane that separates the intracellular space from the outer space phisically delimiting the cell; the cytoplasm, the interior ... and the nucleus, the membrane-delimited internal region that contains the genetic material.
Description : Multiple checkpoints in the eukaryotic cell cycle ensure that division occurs only after sufficient growth and faithful DNA replication, and only when favorable conditions exist. Of the many proteins involved in ... CDKs) are among the most important. How do CDKs function to control the cell cycle?
Last Answer : CDKs phosphorylate various protein substrates that are required for cell cycle progression. Some of the important substrate proteins that CDKs phosphorylate include condensin proteins, which are essential ... which form a stabilizing network under the nuclear membrane that assembles during mitosis.
Description : The eukaryotic cell cycle consists of discrete phases. One of these is named the M or mitosis phase during which the cell divides. Following the M phase is a period known as interphase that is made up of three distinct phases. Name, in order, the three separate phases of interphase.
Last Answer : G1, S and G2
Description : Cytoskeletal elements are responsible for giving cells their shape and provide a basis for cell movement, migration, and cell division. Name the three major classes of cytoskeletal elements in eukaryotic cells.
Last Answer : Microtubules (composed of tubulin); actin filaments (made up of actin); intermediate filaments
Description : Name the three metabolic processes used to produce energy in a eukaryotic cell when oxygen is present.
Last Answer : Glycolysis, Citric Acid Cycle, Oxidative Phosphorylation. Or glycolysis and respiration, but the question specifies three processes.
Description : In a eukaryotic cell, what separates DNA from the protein translation machinery in the cytoplasm?
Last Answer : The nuclear envelope.
Description : Distinguish the ribosomes of prokaryotic cells from that of eukaryotic cells. -Biology
Last Answer : answer:
Description : What is the difference between eukaryotic and prokaryotic ribosomes? -Biology
Description : What is true about ribosomes? (a) The prokaryotic ribosomes are 80S, where “S” stands for sedimentation coefficient. (b) These are composed of ribonucleic acid and proteins. (c) These are found only in eukaryotic cells. (d) These are self-splicing introns of some RNAs
Last Answer : (b) These are composed of ribonucleic acid and proteins.
Description : What is true about ribosomes ? (1) These are self - splicing introns of some RNAs (2) The prokaryotic ribosomes are 80S, where “S” stands for sedimentation coefficient (3) These are composed of ribonucleic acid and proteins (4) These are found only in eukaryotic cells
Last Answer : (3) These are composed of ribonucleic acid and proteins
Description : Where in the cell can ribosomes be found ?
Last Answer : What is the main biological function of ribosomes? Ribosomes can be found free in the cytoplasm, adhered to the outer side of the nuclear membrane or associated to the endoplasmic reticulum ... structures where protein synthesis takes place. Cell Structure Review - Image Diversity: ribosomes
Description : Hydrogen peroxide degradation in a cell is a function of (A) Ribosomes (B) Mitochondria (C) Peroxisomes (D) Glyoxisomes
Last Answer : mitochondria
Description : Name the non -membrane bound cell or- ganelle which is present in both eukaryotic and prokaryotic cell?
Last Answer : Ribosomes
Description : The electron transport chain within the inner mitochondrial membrane creates a gradient of ____________ across the inner membrane which is utilized to drive the activity of ATP synthase and the generation of ATP.
Last Answer : Hydrogen (H+ ions) or protons
Description : Where is ATP produced in prokaryotic cells? a. In The Mitochondria b. In The Chloroplast c. On The Cell Membrane d. On The Ribosomes
Last Answer : b. In The Chloroplast
Description : In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the (a) ribosomes (b) nucleus (c) dictyosomes (d) ER
Last Answer : (a) ribosomes
Description : Ribosomes are attached with ER by (A) Larger subunit (B) Smaller subunit (C) Na+ ions (D) None of these
Last Answer : (A) Larger subunit
Description : Ribosomes are constructed in the (A) Endoplasmic reticulum (B) Nucleoid (C) Nucleolus (D) Nuclear pore
Last Answer : (C) Nucleolus
Description : $ Kingdom Monera includes the unicellular prokaryotic organisms. ! Eukaryotes are the organisms which have a eukaryotic nucleus and double membraned o
Last Answer : $ Kingdom Monera includes the unicellular prokaryotic organisms. ! Eukaryotes are the organisms which have a ... D. If both As and R are wrong.
Description : What is a difference between prokaryotic and eukaryotic cells in making protein? a. Eukayotes have introns that stay inside the nucleus b. Prokaryotes can transcribe and translate at the same time c. the process is faster in prokaryotes d. A-C are correct
Last Answer : d. A-C are correct
Description : The largest organelle in a mature living plant cell is the (A) Chloroplast (B) Nucleus (C) Central vacuole (D) Dictyosomes
Last Answer : (C) Central vacuole
Description : What is mass transportation across the cell membrane ?
Last Answer : Mass transportation is the entrance or the exiting of substances in or from the cell engulfed by portions of membrane. The fusion of internal substance-containing membranous vesicles with the cell ... cell after they have been engulfed by projections of the membrane is called endocytosis.
Description : How does the sodium-potassium pump present in the cell membrane work ?
Last Answer : What is the importance of this protein for the cell? The sodium-potassium pump is the transport protein that maintains the concentration gradient of these ions between the intra and the ... maintain the cellular metabolism. Cell Membrane Review - Image Diversity: sodium-potassium pump
Description : What are differentiations of the cell membrane ?
Last Answer : In some types of cells, the cell membrane present differentiations that are necessary for the specific functions of the cells. The main differentiations are the microvilli and the structures for ... tight junctions (zonula occludens), zonula adherens (adherens junctions) and gap junctions.
Description : What are the basic constituents of the cell membrane ?
Last Answer : The cell membrane is formed of lipids, proteins and carbohydrates. The membrane lipids are phospholipids, a special type of lipid to which one extremity a phosphate group is bound thus ... cell membrane. Cell Membrane Review - Image Diversity: phospholipid bilayer membrane proteins glycocalyx
Description : Concerning permeability what type of membrane is the cell membrane ?
Last Answer : The cell membrane is a selectively permeable membrane, i.e., it allows the passage of water and some selected solutes. Cell Membrane Review - Image Diversity: cell membrane
Description : What is the plasma membrane of the cell ?
Last Answer : What are its main functions? The plasma membrane is the outer membrane of the cell it delimits the cell itself and a cell interior with specific conditions for the cellular function. Since it ... passage of substances inwards or outwards. Cell Structure Review - Image Diversity: cell membrane