Which one of the following structures is an organelle within an organelle " " Or Which of the following cell organelle lacks DNA and bounding membrane

Which one of the following structures is an organelle within an organelle " " Or Which of the following cell organelle lacks DNA and bounding membrane
by

1 Answer

Answer :

Which one of the following structures is an organelle within an organelle " " Or Which of the following ... . ER B. Mesosome C. Ribosome D. Peroxisome
by
selected by

Related questions

In a cell, the membrane bounding the outer surface of the cytoplasm is known as: a) tonoplast b) cytoplast c) plasmalemma

Description : In a cell, the membrane bounding the outer surface of the cytoplasm is known as: a) tonoplast b) cytoplast c) plasmalemma

Last Answer : ANSWER: C -- PLASMALEMMA

Which one of the following structures is an organelle within an organelle? (a) Ribosome (b) Peroxisome (c) ER (d) Mesosome

Description : Which one of the following structures is an organelle within an organelle? (a) Ribosome (b) Peroxisome (c) ER (d) Mesosome

Last Answer : (a) Ribosome

Vacuole in a plant cell (a) lacks membrane and contains air (b) lacks membrane and contains water and excretory substances (c) is membrane-bound and contains storage proteins and lipids (d) is membrane-bound and contains water and excretory substances.

Description : Vacuole in a plant cell (a) lacks membrane and contains air (b) lacks membrane and contains water and excretory substances (c) is membrane-bound and contains storage proteins and lipids (d) is membrane-bound and contains water and excretory substances.

Last Answer : (d) is membrane-bound and contains water and excretory substances.

Assertion: Chloroplasts are known as semiautonomus cell organelle. Reason: Chloroplast has lipoprotein membrane.

Description : Assertion: Chloroplasts are known as semiautonomus cell organelle. Reason: Chloroplast has lipoprotein membrane.

Last Answer : Assertion: Chloroplasts are known as semiautonomus cell organelle. Reason: Chloroplast has lipoprotein ... If both Assertion & Reason are false.

Cell organelle covered by single unit membrane is: (a) Glyoxisome (b) Lysosome (c) Peroxisomes (d) All of these.

Description : Cell organelle covered by single unit membrane is: (a) Glyoxisome (b) Lysosome (c) Peroxisomes (d) All of these.

Last Answer : Ans. ((d))

An F-cell is unable to initiate conjugation because it lacks a. Double-Stranded DNA. b. A Prophase. c. An F Factor. d. DNA polymerase

Description : An F-cell is unable to initiate conjugation because it lacks a. Double-Stranded DNA. b. A Prophase. c. An F Factor. d. DNA polymerase

Last Answer : c. An F Factor.

In the human body the circulator system transports and delivers substances. Within the cell which organelle performs a similar function?

Description : In the human body the circulator system transports and delivers substances. Within the cell which organelle performs a similar function?

Last Answer : Need answer

What organelle stores the DNA in the cell?

Description : What organelle stores the DNA in the cell?

Last Answer : The nucleus.

QFor generating Coons patch we require a.A set of grid points on surface b.A set of control points c.Four bounding curves defining surface d.Two bounding curves and a set of grid control points

Description : QFor generating Coons patch we require a.A set of grid points on surface b.A set of control points c.Four bounding curves defining surface d.Two bounding curves and a set of grid control points

Last Answer : c.Four bounding curves defining surface

The sine and cosine curves intersect infinitely many times , bounding regions of equal areas . Sketch one of these regions and find its area .

Description : The sine and cosine curves intersect infinitely many times , bounding regions of equal areas . Sketch one of these regions and find its area .

Last Answer : The sine and cosine curves intersect infinitely many times , bounding regions of equal areas . Sketch one of these ... ` C. `3 sqrt2` D. `4 sqrt2`

Pulse - bounding?

Description : Pulse - bounding?

Last Answer : DefinitionA bounding pulseis a strong and forceful pulse.See also: Heart palpitationsAlternative NamesBounding pulseConsiderationsA bounding pulse can often be seen in arteries that are close to the ... in aortic valve regurgitation.Call your health care provider ifCall your health care provider

Which of the following organelle lack membrane? (a) Mitochondria (b) Ribosomes (c) Microtubules(d) Peroxisomes

Description : Which of the following organelle lack membrane? (a) Mitochondria (b) Ribosomes (c) Microtubules(d) Peroxisomes

Last Answer : (b) Ribosomes

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

How is the DNA from animal organelle inherited?

Description : How is the DNA from animal organelle inherited?

Last Answer : Need answer

What organelle is DNA usually found in?

Description : What organelle is DNA usually found in?

Last Answer : Nucleus

The eukaryotic nuclear chromosomal DNA (A) Is a linear and unbranched molecule (B) Is not associated with a specific membranous organelle (C) Is not replicated semiconservatively (D) Is about of the same size as each prokaryotic chromoses

Description : The eukaryotic nuclear chromosomal DNA (A) Is a linear and unbranched molecule (B) Is not associated with a specific membranous organelle (C) Is not replicated semiconservatively (D) Is about of the same size as each prokaryotic chromoses

Last Answer : Answer : A

.Viruses possess (a) ribosomes to synthesize protein ((c) either DNA or RNA (d) none of these.b) organelle for its vital mechanism

Description : .Viruses possess (a) ribosomes to synthesize protein (b) organelle for its vital mechanism (c) either DNA or RNA (d) none of these.

Last Answer : (c) either DNA or RNA

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

Which of these are tiny structures within the cell that have specific jobs to do within the cell?

Description : Which of these are tiny structures within the cell that have specific jobs to do within the cell?

Last Answer : organelles

Which of these are tiny structures within the cell that have specific jobs to do within the cell?

Description : Which of these are tiny structures within the cell that have specific jobs to do within the cell?

Last Answer : organelles

What are the main structures within the cell nucleus ?

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.

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

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

Which one of the following living organisms completely lacks a cell wall

Description : Which one of the following living organisms completely lacks a cell wall

Last Answer : Which one of the following living organisms completely lacks a cell wall A. Cyanobacteria B. Sea-fan (Gorgonia ) C. Saccharomyces D. Blue-green alga

What is a cell that lacks peroxisomes unable to do?

Description : What is a cell that lacks peroxisomes unable to do?

Last Answer : Need answer

Which one of the following living organisms completely lacks a cell wall? (a) Cyanobacteria (b) Sea-fan (Gorgonia) (c) Saccharomyces (d) Blue-green algae

Description : Which one of the following living organisms completely lacks a cell wall? (a) Cyanobacteria (b) Sea-fan (Gorgonia) (c) Saccharomyces (d) Blue-green algae

Last Answer : (b) Sea-fan (Gorgonia)

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.

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.

The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases. (b) D - Lower end of lungs - Diaphragm pulls it down during inspiration. (c) A - Trachea - Long tube supported by complete cartilaginous rings for conducting inspired air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

Description : The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - ... air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

Last Answer : (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases.

Which of the following statements is not correct? (a) Lysosomes are formed by the process of packaging in the endoplasmic reticulum. (b) Lysosomes have numerous hydrolytic enzymes. (c) The hydrolytic enzymes of lysosomes are active under acidic pH. (d) Lysosomes are membrane-bound structures.

Description : Which of the following statements is not correct? (a) Lysosomes are formed by the process of packaging in the endoplasmic reticulum. (b) Lysosomes have numerous hydrolytic enzymes. (c) The hydrolytic enzymes of lysosomes are active under acidic pH. (d) Lysosomes are membrane-bound structures.

Last Answer : (a) Lysosomes are formed by the process of packaging in the endoplasmic reticulum.

Why Cells that carry on digestion within the cell do not partly digest themselves because they secrete their digestive enzymes into membrane-enclosed?

Description : Why Cells that carry on digestion within the cell do not partly digest themselves because they secrete their digestive enzymes into membrane-enclosed?

Last Answer : Feel Free to Answer

Increasing evidence has implicated gram-negative bacterial lipopolysaccharide (LPS endotoxin) as the portion of the gram-negative bacterial cell membrane responsible for many, if not all the toxic effects that occur during gram-negative bacterial sepsis. The following statement(s) is/are true concerning LPS and the host response. a. The LPS molecule can in itself cause physiologic responses similar to that seen during gram-negative bacterial sepsis b. LPS triggers host macrophages to release a variety of cytokines including TNF-a, IL-1a, and IL-1b, IL-6, and IFN-a c. Excessive cytokine production is not associated with detrimental consequences d. TNFa and IL-1b appear to be the primary mediators within the host, exerting deleterious effects on the host when excessive amounts reach the syst

Description : Increasing evidence has implicated gram-negative bacterial lipopolysaccharide (LPS endotoxin) as the portion of the gram-negative bacterial cell membrane responsible for many, if not all the ... host, exerting deleterious effects on the host when excessive amounts reach the systemic circulation

Last Answer : Answer: a, b, d The LPS molecule exerts diverse effects on the mammalian host. Immunologic responses to LPS include nonspecific polyclonal B-cell proliferation, macrophage activation and ... deleterious effects on the host only after large amounts are secreted and reach the systemic circulation

Endocytosis is a process whereby a cell (a) Digests itself (b) Engulfs and internalises material using its membrane (c) Identifies other cells within its immediate (d) Enables the extracellular digestion of large molecules

Description : Endocytosis is a process whereby a cell (a) Digests itself (b) Engulfs and internalises material using its membrane (c) Identifies other cells within its immediate (d) Enables the extracellular digestion of large molecules

Last Answer : Ans:(b)

According to widely accepted “fluid mosaic model” cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect? (a) Proteins in cell membranes can travel within the lipid bilayer. (b) Proteins can also undergo flip-flop movements in the lipid bilayer. (c) Proteins can remain confined within certain domains of the membrane.(d) Many proteins remain completely embedded within the lipid bilayer.

Description : According to widely accepted fluid mosaic model cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several ... domains of the membrane. (d) Many proteins remain completely embedded within the lipid bilayer.

Last Answer : (b) Proteins can also undergo flip-flop movements in the lipid bilayer.

The structure within a cell that distinguishes the cell as being eukaryotic, and prokaryotic is (A) Ribosomes (B) Cell membrane (C) Cell wall (D) Nucleus

Description : The structure within a cell that distinguishes the cell as being eukaryotic, and prokaryotic is (A) Ribosomes (B) Cell membrane (C) Cell wall (D) Nucleus

Last Answer : (D) Nucleus

Most hormone receptors are localized on the cell membrane and transduce hormone binding into altered levels of intracellular messengers. A limited number of intracellular receptors do exist. Which of the following statement(s) is/are true concerning intracellular receptors? a. The messengers or hormones must by lipophilic b. These intracellular receptors generally regulate protein synthesis c. The intracellular receptors are located entirely in the nucleus of the cell d. A heat-shock protein serves as an inhibitor protein blocking the DNA-binding domain of the steroid receptor

Description : Most hormone receptors are localized on the cell membrane and transduce hormone binding into altered levels of intracellular messengers. A limited number of intracellular receptors do exist. Which of ... protein serves as an inhibitor protein blocking the DNA-binding domain of the steroid receptor

Last Answer : Answer: a, d Although most hormone and other messenger receptors are extracellular, intracellular receptors have been identified. The hormone messengers involved for these receptors are primarily ... DNA-binding domain of the receptor. Activation involves the dissociation of the inhibitor protein

Which of the following statements are true of oxidants? A. In addition to their pathophysiologic roles in inflammation, injury, and infection, oxidants also have physiologic roles. B. Oxidants may be generated from activated neutrophils and during reperfusion following a period of ischemia. C. The deleterious effects of oxidants include lipid peroxidation and cell membrane damage, oxidative damage to DNA, and inhibition of adenosine triphosphate (ATP) synthesis. D. The mechanism of ischemia-reperfusion injury involved the catalytic production of superoxide anion (O 2•) by the enzyme xanthine oxidase.

Description : Which of the following statements are true of oxidants? A. In addition to their pathophysiologic roles in inflammation, injury, and infection, oxidants also have physiologic roles. B. Oxidants may ... involved the catalytic production of superoxide anion (O 2 ) by the enzyme xanthine oxidase.

Last Answer : Answer: ABCD DISCUSSION: Oxidants are reactive oxygen metabolites that have both physiologic and pathophysiologic roles. As potent oxidizing agents, oxidants are involved in cytochrome P ... leukocyte infiltration and activation, causing further tissue damage by the release of cytotoxic proteases

The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes and inhibit bacterial protein synthesis (c) They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

Description : The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes ... peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

Last Answer : Ans: B

A prokaryotic cell does not have which of the followin (1) Ribosomes (2) Cell membrane (3) Nucleus (4) DNA

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.

How does steroid hormone influence the cellular activities? (a) Using aquaporin channels ‘as second messenger’ (b) Changing the permeability of the cell membrane (c) Binding to DNA and forming a gene-hormone complex (d) Activating cyclic AMP located on the cell membrane

Description : How does steroid hormone influence the cellular activities? (a) Using aquaporin channels ‘as second messenger’ (b) Changing the permeability of the cell membrane (c) Binding to DNA and forming a gene-hormone complex (d) Activating cyclic AMP located on the cell membrane

Last Answer : (c) Binding to DNA and forming a gene-hormone complex

Microtubule is involved in the (a) muscle contraction (b) membrane architecture (c) cell division (d) DNA recognition

Description : Microtubule is involved in the (a) muscle contraction (b) membrane architecture (c) cell division (d) DNA recognition

Last Answer : (c) cell division

Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?(a) B : Adenine - A nucleotide that makes up nucleic acids (b) A : Triglyceride - Major source of energy (c) B : Uracil - A component of DNA (d) A : Lecithin - A component of cell membrane

Description : Which one of the following structural formulae of two organic compounds is correctly identified along with its related function? (a) B : Adenine - A nucleotide that makes up nucleic acids (b) A : Triglyceride - ... ) B : Uracil - A component of DNA (d) A : Lecithin - A component of cell membrane

Last Answer : (d) A : Lecithin - A component of cell 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

Which does NOT occur in a cell stimulated by a steroid hormone? A) The steroid hormone enters the cell by crossing the plasma membrane. B) The hormone binds to a receptor molecule in the cytoplasm. C) The second messenger cyclic AMP is stimulated by the hormone-receptor complex. D) The hormone-receptor complex binds the chromatin and activates certain genes. E) DNA is transcribed, mRNA is translated, and the result is protein synthesis.

Description : Which does NOT occur in a cell stimulated by a steroid hormone? A) The steroid hormone enters the cell by crossing the plasma membrane. B) The hormone binds to a receptor molecule in the ... activates certain genes. E) DNA is transcribed, mRNA is translated, and the result is protein synthesis.

Last Answer : C) The second messenger cyclic AMP is stimulated by the hormone-receptor complex. D) The hormone-receptor complex binds the chromatin and activates certain genes.

The polyene antibiotics act by: A. Inhibiting fungal cytochrome P450 enzyme B. Binding to ergosterol and creating micropores in fungal cell membrane C. Inhibiting fungal DNA synthesis D. Disorienting microtubules in fungal cells

Description : The polyene antibiotics act by: A. Inhibiting fungal cytochrome P450 enzyme B. Binding to ergosterol and creating micropores in fungal cell membrane C. Inhibiting fungal DNA synthesis D. Disorienting microtubules in fungal cells

Last Answer : B. Binding to ergosterol and creating micropores in fungal cell membrane

The most important mechanism by which tetracycline antibiotics exert antimicrobial action is: A. They chelate Ca2+ ions and alter permeability of bacterial cell membrane B. They bind to 30S ribosomes and inhibit bacterial protein synthesis C. They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria D. They interfere with DNA mediated RNA synthesis in bacteria

Description : The most important mechanism by which tetracycline antibiotics exert antimicrobial action is: A. They chelate Ca2+ ions and alter permeability of bacterial cell membrane B. They bind to 30S ribosomes ... peptide chain in the bacteria D. They interfere with DNA mediated RNA synthesis in bacteria

Last Answer : B. They bind to 30S ribosomes and inhibit bacterial protein synthesis

Which of the following would you NOT find in a bacterial cell (A) DNA (B) Cell membrane (C) Golgi apparatus (D) Ribosomes

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

A prokaryotic cell does not have which of the following? (1) Ribosomes (2) Cell membrane (3) Nucleus (4) DNA

Description : A prokaryotic cell does not have which of the following? (1) Ribosomes (2) Cell membrane (3) Nucleus (4) DNA

Last Answer : Nucleus

How will absence of any one of the cell organelle affect the cell’s working? -Biology 9th

Description : How will absence of any one of the cell organelle affect the cell’s working? -Biology 9th

Last Answer : Functions of all the organelles are inter-linked to each other and ultimately to the working of the example cell. So, if even a single link is missing, the cell ultimately suffers and die. ... formation to the ribosomes which send the proteins to Golgi complex and ER for modification and transport.

How will absence of any one of the cell organelle affect the cell’s working? -Biology 9th

Description : How will absence of any one of the cell organelle affect the cell’s working? -Biology 9th

Last Answer : answer:

Which cell organelle contains the maximum enzymes? -Biology

Description : Which cell organelle contains the maximum enzymes? -Biology

Last Answer : answer: