Bacterial cells do not have (1) Cell wall (2) Plasma membrane (3) Ribosome (4) Mitochondria

Bacterial cells do not have (1) Cell wall (2) Plasma membrane (3) Ribosome (4) Mitochondria
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Bacterial cells do not have - (1) Cell wall (2) Plasma membrane (3) Ribosome (4) Mitochondria

Description : Bacterial cells do not have - (1) Cell wall (2) Plasma membrane (3) Ribosome (4) Mitochondria

Last Answer : (4) Mitochondria Explanation: Unlike cells of animals and other eukaryotes, bacterial cells do not contain a nucleus and rarely harbour membrane-bound organelles. Bacteria are prokaiyotes, which ... are cells that don't possess membrane-bound organelles. Mitochondria are membrane-bound organelles.

All of the following are found in prokaryotes and eukaryotes, except a. acell (plasma) membrane b. mitochondria c. cytoplasm d. ribosome

Description : All of the following are found in prokaryotes and eukaryotes, except a. acell (plasma) membrane b. mitochondria c. cytoplasm d. ribosome

Last Answer : b. mitochondria

Which of the following components provides sticky character to the bacterial cell? (a) Nuclear membrane (b) Plasma membrane (c) Glycocalyx (d) Cell wall

Description : Which of the following components provides sticky character to the bacterial cell? (a) Nuclear membrane (b) Plasma membrane (c) Glycocalyx (d) Cell wall

Last Answer : (c) Nostoc

Which of the following components provides sticky character to the bacterial cell ? (1) Nuclear membrane (2) Plasma membrane (3) Glycocalyx (4) Cell wall

Description : Which of the following components provides sticky character to the bacterial cell ? (1) Nuclear membrane (2) Plasma membrane (3) Glycocalyx (4) Cell wall

Last Answer : (3) Glycocalyx

Which of the following structures is not found in a prokaryotic cell? (a) Mesosome (b) Plasma membrane (c) Nuclear envelope (d) Ribosome

Description : Which of the following structures is not found in a prokaryotic cell? (a) Mesosome (b) Plasma membrane (c) Nuclear envelope (d) Ribosome

Last Answer : (c) Nuclear envelope

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 /

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

Which are the cholesterol esters that enter cells through the receptor-mediated endocytosis of lipoproteins hydrolyzed? (A) Endoplasmin reticulum (B) Lysosomes (C) Plasma membrane receptor (D) Mitochondria

Description : Which are the cholesterol esters that enter cells through the receptor-mediated endocytosis of lipoproteins hydrolyzed? (A) Endoplasmin reticulum (B) Lysosomes (C) Plasma membrane receptor (D) Mitochondria

Last Answer : B

Which are the cholesterol esters that enter cells through the receptor-mediated endocytosis of lipoproteins hydrolyzed? (A) Endoplasmin reticulum (B) Lysosomes (C) Plasma membrane receptor (D) Mitochondria

Description : Which are the cholesterol esters that enter cells through the receptor-mediated endocytosis of lipoproteins hydrolyzed? (A) Endoplasmin reticulum (B) Lysosomes (C) Plasma membrane receptor (D) Mitochondria

Last Answer : (B) Lysosomes

Difference in Gram positive and Gram negative bacteria is due to (a) cell wall (b) cell membrane (c) ribosome (d) cytoplasm.

Description : Difference in Gram positive and Gram negative bacteria is due to (a) cell wall (b) cell membrane (c) ribosome (d) cytoplasm.

Last Answer : (a) cell wall

Difference in Gram positive and Gram negative bacteria is due to (a) cell wall (b) cell membrane (c) ribosome (d) cytoplasm.

Description : Difference in Gram positive and Gram negative bacteria is due to (a) cell wall (b) cell membrane (c) ribosome (d) cytoplasm.

Last Answer : (a) cell wall

Which of the following organelles has single membrane? (a) Mitochondria (b) Spherosomes (c) Nucleus (d) Cell wall

Description : Which of the following organelles has single membrane? (a) Mitochondria (b) Spherosomes (c) Nucleus (d) Cell wall

Last Answer : (b) Spherosomes

The term ‘glycocalyx’ is used for (a) a layer present between cell wall and membrane of bacteria (b) cell wall of bacteria (c) bacterial cell glyco-engineered to possess N-glycosylated proteins (d) a layer surrounding the cell wall of bacteria.

Description : The term ‘glycocalyx’ is used for (a) a layer present between cell wall and membrane of bacteria (b) cell wall of bacteria (c) bacterial cell glyco-engineered to possess N-glycosylated proteins (d) a layer surrounding the cell wall of bacteria.

Last Answer : (d) a layer surrounding the cell wall of bacteria.

Bactericidal action of aminoglycoside antibiotics is due to: A. Inhibition of bacterial protein synthesis B. Alteration of bacterial cell membrane permeability C. Damage to bacterial cell wall D. Inhibition of bacterial oxidative metabolism

Description : Bactericidal action of aminoglycoside antibiotics is due to: A. Inhibition of bacterial protein synthesis B. Alteration of bacterial cell membrane permeability C. Damage to bacterial cell wall D. Inhibition of bacterial oxidative metabolism

Last Answer : B. Alteration of bacterial cell membrane permeability

Protein synthesis in an animal cell occurs (a) only on the ribosomes present in cytosol (b) only on ribosome attached to the nuclear envelope and endoplasmic reticulum (c) on ribosome present in the nucleolus as well as in cytoplasm (d) on ribosomes present in cytoplasm as well as in mitochondria.

Description : Protein synthesis in an animal cell occurs (a) only on the ribosomes present in cytosol (b) only on ribosome attached to the nuclear envelope and endoplasmic reticulum (c) on ribosome present in the ... as well as in cytoplasm (d) on ribosomes present in cytoplasm as well as in mitochondria.

Last Answer : (d) on ribosomes present in cytoplasm as well as in mitochondria.

.Protein synthesis in an animal cell occurs (a) only on the ribosomes present in cytosol (b) only on ribosome attached to the nuclear envelope and endoplasmic reticulum (c) on ribosome present in the nucleolus as well as in cytoplasm (d) on ribosomes present in cytoplasm as well as in mitochondria.

Description : .Protein synthesis in an animal cell occurs (a) only on the ribosomes present in cytosol (b) only on ribosome attached to the nuclear envelope and endoplasmic reticulum (c) on ribosome present in the ... as well as in cytoplasm (d) on ribosomes present in cytoplasm as well as in mitochondria.

Last Answer : (d) on ribosomes present in cytoplasm as well as in mitochondria.

Metabolic water is the water generated in all cell of the body by a. ribosome b. mitochondria c. bodies d. centrosome

Description : Metabolic water is the water generated in all cell of the body by a. ribosome b. mitochondria c. bodies d. centrosome

Last Answer : mitochondria

The chromosomes of a eukaryotic cell are located i the: a) mitochondria (pron: my-toe-kon-dria) b) nucleus c) ribosome d) endoplasma

Description : The chromosomes of a eukaryotic cell are located i the: a) mitochondria (pron: my-toe-kon-dria) b) nucleus c) ribosome d) endoplasma

Last Answer : ANSWER: B -- NUCLEUS

The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is (a) Decreased permeability into the bacterial cell (b) Acquisition of a plasmid encoded for chloramphenicol acetyl transferase (c) Lowered affinity of the bacterial ribosome for chloramphenicol (d) Switching over from ribosomal to mitochondrial protein synthesis

Description : The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is (a) Decreased permeability into the bacterial cell (b) Acquisition of a plasmid encoded ... bacterial ribosome for chloramphenicol (d) Switching over from ribosomal to mitochondrial protein synthesis

Last Answer : Ans: B

The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is: A. Decreased permeability into the bacterial cell B. Acquisition of a plasmid encoded for chloramphenicol acetyl transferase C. Lowered affinity of the bacterial ribosome for chloramphenicol D. Switching over from ribosomal to mitochondrial protein synthesi

Description : The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is: A. Decreased permeability into the bacterial cell B. Acquisition of a plasmid encoded ... the bacterial ribosome for chloramphenicol D. Switching over from ribosomal to mitochondrial protein synthesi

Last Answer : B. Acquisition of a plasmid encoded for chloramphenicol acetyl transferas

Where is ATP produced in prokaryotic cells? a. In The Mitochondria b. In The Chloroplast c. On The Cell Membrane d. On The Ribosomes

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

What is the difference between plasma membrane and cell wall ?

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

A protoplast is a cell (a) undergoing division (b) without cell wall (c) without plasma membrane (d) without nucleus.

Description : A protoplast is a cell (a) undergoing division (b) without cell wall (c) without plasma membrane (d) without nucleus.

Last Answer : (b) without cell wall

Study the pathway given below. Atmospheric CO2 mesophyll cell Bundle sheath cell Plasma- desmata Plasma membrane Cell wall HCO Phosphoenol- 3 – pyruvate Cell wall C acid 4 C acid 3 Transport Transport Fixation by Calvin cycle C acid 4 C acid 3 CO2 In which of the following options correct words for all the three blanks A, B and C are indicated? A B C (a) Decarboxylation Reduction Regeneration (b) Fixation Transamination Regeneration (c) Fixation Decarboxylation Regeneration (d) Carboxylation Decarboxylation Reduction

Description : Study the pathway given below. Atmospheric CO2 mesophyll cell Bundle sheath cell Plasma- desmata Plasma membrane Cell wall HCO Phosphoenol- 3 - pyruvate Cell wall C acid ... b) Fixation Transamination Regeneration (c) Fixation Decarboxylation Regeneration (d) Carboxylation Decarboxylation Reduction

Last Answer : (c) Fixation Decarboxylation Regeneration

In eubacteria, a cellular component that resembles eukaryotic cell is (a) plasma membrane (b) nucleus (c) ribosomes (d) cell wall.

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

Antifungal drugs, such as_ __, inhibit proper formation of a. Miconazole; A Plasma Membrane b. Griseofulvin; Dna c. Ketoconazole; A Cell Wall d. Tiucytosine; A Rnicrotubule

Description : Antifungal drugs, such as_ __, inhibit proper formation of a. Miconazole; A Plasma Membrane b. Griseofulvin; Dna c. Ketoconazole; A Cell Wall d. Tiucytosine; A Rnicrotubule

Last Answer : d. Tiucytosine; A Rnicrotubule

The ________ provides fixed shape and rigidity to plant cell. a) cell wall b)cell membrane c)plasma lemma d)lysosome

Description : The ________ provides fixed shape and rigidity to plant cell. a) cell wall b)cell membrane c)plasma lemma d)lysosome

Last Answer : a) cell wall

The outer most layer of cell wall is (A) Primary wall (B) Secondary wall (C) Middle lamella (D) Plasma membrane

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

Which one of the following is NOT a structure or subcompartment found in bacterial cells? a. Micro compartments b. Volutin c. Ribosomes d. Mitochondria

Description : Which one of the following is NOT a structure or subcompartment found in bacterial cells? a. Micro compartments b. Volutin c. Ribosomes d. Mitochondria

Last Answer : d. Mitochondria

Which one of the following is NOT found in bacterial cells? a. Ribosomes b. DNA c. Mitochondria d. Cytoplasm

Description : Which one of the following is NOT found in bacterial cells? a. Ribosomes b. DNA c. Mitochondria d. Cytoplasm

Last Answer : c. Mitochondria

A striking feature of living cells is a marked difference between the composition of the cytosol and the extracellular milieu. Which of the following statement(s) concerning the mechanisms of maintenance of these differences is/are true? a. The cell membrane is able to maintain a 10,000 fold gradient between the extracellular concentration of ionized calcium and the intracellular concentration b. The key to these differences is the fact that the plasma membrane is normally impermeable to sodium, potassium and calcium c. The selectivity of biologic membranes is highly consistent and seldom changes d. The selectivity of cell membranes relates only to ions and not organic compounds

Description : A striking feature of living cells is a marked difference between the composition of the cytosol and the extracellular milieu. Which of the following statement(s) concerning the mechanisms of maintenance ... d. The selectivity of cell membranes relates only to ions and not organic compounds

Last Answer : Answer: a The survival of the cell requires that cytosolic composition be maintained within narrow limits, despite the constant influx of nutrients and the simultaneous outflow of waste. A ... be altered drastically as a result of regulatory or signaling processes that occur within the cell

Which of the following statement(s) is/are true concerning the cell plasma membrane? a. The plasma membrane is composed of amphipathic molecules b. The hydrophobic core of the lipid bilayer of the cell membrane contains specialized transport proteins which maintain the intracellular ionic milieu different from the extracellular fluid c. Plasma membrane proteins extend externally and bear phospholipid moieties which contribute to the cell coat d. The membrane proteins of nerve cells are highly voltage-dependent

Description : Which of the following statement(s) is/are true concerning the cell plasma membrane? a. The plasma membrane is composed of amphipathic molecules b. The hydrophobic core of the lipid bilayer of the ... contribute to the cell coat d. The membrane proteins of nerve cells are highly voltage-dependent

Last Answer : Answer: a, b, d The plasma membrane defines the boundary of the cell and serves to contain and concentrate enzymes and other macromolecule constituents. The plasma membrane is ... and bear carbohydrate moieties primarily as oligosaccharide chains that contribute to the cell coat or glycocalyx

Outside the nucleus DNA is found in - (1) Golgi bodies (2) Mitochondria (3) Ribosome (4) Endoplasmic reticulum

Description : Outside the nucleus DNA is found in - (1) Golgi bodies (2) Mitochondria (3) Ribosome (4) Endoplasmic reticulum

Last Answer : (2) Mitochondria Explanation: In eukaiyotic (with nucleus) cells, the vast majority of DNA is found in the nucleus as discrete bodies called chromosomes. The exception to this being the small amount ... cells, more than 99% of the total DNA is nuclear genomic DNA and the remainder mitochondrial.

The rough endoplasmic reticulum is rough due to presence of _______. a) ribosome b)mitochondria c)granules d)grains

Description : The rough endoplasmic reticulum is rough due to presence of _______. a) ribosome b)mitochondria c)granules d)grains

Last Answer : a) ribosome

Which organelle has been shown to contain DNA? a) Ribosome b) Mitochondria c) Golgi Apparatus d) none of the above

Description : Which organelle has been shown to contain DNA? a) Ribosome b) Mitochondria c) Golgi Apparatus d) none of the above

Last Answer : ANSWER: B -- MITOCHONDRIA

Outside the nucleus DNA is found in (1) Golgi bodies (2) Mitochondria (3) Ribosome (4) Endoplasmic reticulum

Description : Outside the nucleus DNA is found in (1) Golgi bodies (2) Mitochondria (3) Ribosome (4) Endoplasmic reticulum

Last Answer : Mitochondria

Select the wrong statement. (a) Bacterial cell wall is made up of peptidoglycan. (b) Pili and fimbriae are mainly involved in motility of bacterial cells. (c) Cyanobacteria lack flagellated cells. (d) Mycoplasma is a wall-less microorganism.

Description : Select the wrong statement. (a) Bacterial cell wall is made up of peptidoglycan. (b) Pili and fimbriae are mainly involved in motility of bacterial cells. (c) Cyanobacteria lack flagellated cells. (d) Mycoplasma is a wall-less microorganism.

Last Answer : (b) Pili and fimbriae are mainly involved in motility of bacterial cells.

Which one of the following is NOT true of exotoxins? a. They are proteins. b. They are part of cell wall structure. c. They are released from live bacterial cells. d. They trigger antibody production.

Description : Which one of the following is NOT true of exotoxins? a. They are proteins. b. They are part of cell wall structure. c. They are released from live bacterial cells. d. They trigger antibody production.

Last Answer : d. They trigger antibody production.

Select the antibiotic which inhibits bacterial protein synthesis by interfering with translocation of elongating peptide chain from acceptor site back to the peptidyl site of the ribosome so that ribosome does not move along the mRNA and the peptide chain is prematurely terminated: A. Chloramphenicol B. Erythromycin C. Tetracycline D. Streptomycin

Description : Select the antibiotic which inhibits bacterial protein synthesis by interfering with translocation of elongating peptide chain from acceptor site back to the peptidyl site of the ribosome so that ... chain is prematurely terminated: A. Chloramphenicol B. Erythromycin C. Tetracycline D. Streptomycin

Last Answer : B. Erythromycin

Chloramphenicol inhibits bacterial protein synthesis by: A. Binding to 30S ribosome and inhibiting attachment of aminoacyl tRNA B. Binding to 50S ribosome and preventing peptide bond formation C. Binding to 50S ribosome and blocking translocation of peptide chain D. Binding to both 30S and 50S ribosome and inducing misreading of mRNA code

Description : Chloramphenicol inhibits bacterial protein synthesis by: A. Binding to 30S ribosome and inhibiting attachment of aminoacyl tRNA B. Binding to 50S ribosome and preventing peptide bond formation C. Binding to ... chain D. Binding to both 30S and 50S ribosome and inducing misreading of mRNA code

Last Answer : B. Binding to 50S ribosome and preventing peptide bond formation

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

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

Which of the following cell organelles are not found in a bacterial cell? 1. Glyoxysomes 2. Lysosomes 3. Mitochondria 4. Ribosomes Select the correct answer using codes given below: (a) 1 and 4 (b) 2 and 4 (c) 1, 2 and 3 (d) 1, 2, 3 and 4

Description : Which of the following cell organelles are not found in a bacterial cell? 1. Glyoxysomes 2. Lysosomes 3. Mitochondria 4. Ribosomes Select the correct answer using codes given below: (a) 1 and 4 (b) 2 and 4 (c) 1, 2 and 3 (d) 1, 2, 3 and 4

Last Answer : Ans:(a)

Number of mitochondria in bacterial cell is - (1) one (2) two (3) many (4) zero

Description : Number of mitochondria in bacterial cell is - (1) one (2) two (3) many (4) zero

Last Answer : (4) zero Explanation: Bacteria are prokaryotes, which, by definition, are cells that don't possess membrane-bound organelles. Mitochondria are membrane-bound organelles. Cellular respiration, in prokaryotes, occurs within the cytoplasm or inner surfaces of the cell.

Number of mitochondria in bacterial cell is (1) one (2) two (3) many (4) zero

Description : Number of mitochondria in bacterial cell is (1) one (2) two (3) many (4) zero

Last Answer : zero

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

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

The power house of the cell is (A) Nucleus (B) Cell membrane (C) Mitochondria (D) Lysosomes

Description : The power house of the cell is (A) Nucleus (B) Cell membrane (C) Mitochondria (D) Lysosomes

Last Answer : C

A plant cell is distinguished from an animal cell by the presence of (a) Nucleus (b) Chloroplasts (c) Cell membrane (d) Mitochondria

Description : A plant cell is distinguished from an animal cell by the presence of (a) Nucleus (b) Chloroplasts (c) Cell membrane (d) Mitochondria

Last Answer : Ans:(b)

Which of the following ribosomes are engaged in protein synthesis in animal cell? (a) Ribosomes which occur on nuclear membrane and ER (b) Ribosomes of only cytosol (c) Ribosomes of only nucleolus and cytosol (d) Ribosomes of only mitochondria and cytosol

Description : Which of the following ribosomes are engaged in protein synthesis in animal cell? (a) Ribosomes which occur on nuclear membrane and ER (b) Ribosomes of only cytosol (c) Ribosomes of only nucleolus and cytosol (d) Ribosomes of only mitochondria and cytosol

Last Answer : (a) poleward movement

Identify the components labelled A, B, C and D in the diagram below from the list (i) to (viii) given along withComponents : (i) Cristae of mitochondria (ii) Inner membrane of mitochondria (iii) Cytoplasm (iv) Smooth endoplasmic reticulum (v) Rough endoplasmic reticulum (vi) Mitochondrial matrix (vii) Cell vacuole (viii) Nucleus The correct components are: A B C D (a) (v) (iv) (viii) (iii) (b) (i) (iv) (viii) (vi) (c) (vi) (v) (iv) (vii) (d) (v) (i) (iii) (ii)

Description : Identify the components labelled A, B, C and D in the diagram below from the list (i) to (viii) given along with Components : (i) Cristae of mitochondria (ii) Inner membrane of mitochondria (iii) Cytoplasm (iv) Smooth endoplasmic ... viii) (vi) (c) (vi) (v) (iv) (vii) (d) (v) (i) (iii) (ii)

Last Answer : (a) (v) (iv) (viii) (iii)

Which one of the following cell organelles is enclosed by a single membrane? (a) Lysosomes (b) Nuclei (c) Mitochondria (d) Chloroplasts

Description : Which one of the following cell organelles is enclosed by a single membrane? (a) Lysosomes (b) Nuclei (c) Mitochondria (d) Chloroplasts

Last Answer : (a) Lysosomes

What part of the cell serves as the intracellular highway? (A) Endoplasmic reticulum (B) Golgi apparatus (C) Cell membrane (D) Mitochondria

Description : What part of the cell serves as the intracellular highway? (A) Endoplasmic reticulum (B) Golgi apparatus (C) Cell membrane (D) Mitochondria

Last Answer : (A) Endoplasmic reticulum