Description : Somatic cells of a human have ____ chromosomes and are called (A) 10, haploid (B) 92, diploid (C) 23, haploid (D) 46, diploid
Last Answer : (D) 46, diploid
Description : The pipe wall thickness is minimum for a pipe of given nominal size having schedule number (A) 160 (B) 120 (C) 80 (D) 40
Last Answer : (D) 40
Description : 4725,1050,300,120,80,? 1 : 40 2 : 160 3 : 120 4 : 110 5 : 60
Last Answer : Answer-2 (160) Explanation- 4725 / 4.5=1050 1050/3.5=300 300/2.5=120 120/1.5=80 80/0.5=160
Description : How much area could be covered for giving one irrigation of 3" depth by a pumpset of one cusec output in the operation of 600 hours, if the water conveyance efficiency is 80 per cent ? (A) 180 acres (B) 320 acres (C) 240 acres (D) 160 acres (E) None of these
Last Answer : (C) 240 acres
Description : 2 male, 6 female, and 8 girls can do a work in 192 hrs, 4 male and 16 girls can do it in 160 hrs, 4 male and 6 female can do it in 240 hrs.10 male and 24 girls can do it in. a) A.87 3/ 11 hrs b) B.78 4 /11 hrs c) C.88 6 /12 hrs d) 80 4 /5 hrs
Last Answer : A Let 1 males 1 hr work = x 1 female 1 hour work = y 1 girl 1 hour work = z Then 2x + 6y + 8z = 1/192 ------>1 4x + 16z = 1/160 --------->2 4x + 6y = 1/240 ------------->3 Adding 2 and ... 1/192 + 1/160 =(5+6) / 960 = 11/960 10 male and 24 girls can do work in 960/11 hrs i.e., 87 3 /11 hrs
Description : What are the main cytoplasmic structures present in animal cells ?
Last Answer : The main cytoplasmic structures of the cell are the centrioles, the cytoskeleton, lysosomes, mitochondria, peroxisomes, the Golgi apparatus, the endoplasmic reticula and ribosomes. Cell Structure Review - Image Diversity: cell organelles
Description : Concerning the presence of nucleus what is the difference between animal and bacterial cells ?
Last Answer : Animal cells (cells of living beings of the kingdom Animalia) have an interior membrane that delimits a cell nucleus and thus they are eukaryotic cells; in these cells the genetic material is located ... so they are prokaryotic cells and their genetic material is found dispersed in the cytosol.
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 : 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 are homologous chromosomes ?
Last Answer : Which are the human cells that do not have homologous chromosomes? Chromosomes contain genes (genetic information in the form of nucleotide sequences) that command the protein synthesis thus ... chromosomes are the gametes since during meiosis the homologous chromosomes are separated.
Description : The mean arterial pressure of a blood pressure of 160 80 is A. 90 mmHg B. 100 mmHg C. 110 mmHg D. 120 mmHg
Last Answer : Ans: C
Description : Normal blood pressure reading of an adult human : (1) 80/120 mm Hg (2) 120/80 mm Hg (3) 130/90 mm Hg (4) 160/95 mm Hg
Last Answer : (2) 120/80 mm Hg Explanation: According to the American Heart Association (AHA), normal blood pressure is a systolic pressure of less than 120 millimeters of mercury (mm Hg) and a diastolic ... . Having a blood pressure greater than 140/ 90 mm Hg is considered high blood pressure or hypertension.
Description : Normal blood pressure of man is – (1) 80/120 mm Hg (2) 90/140 mm Hg (3) 120/160 mm Hg (4) 85/150 mm Hg
Last Answer : (1) 80/120 mm Hg Explanation: Normal blood pressure is considered to be at or below 120 over 80 (120/80).
Description : Normal blood pressure of man is - (1) 80/120 mm (2) 90/140 mm Hg (3) 120/160 mm Hg (4) 85/120 mm Hg
Last Answer : (1) 80/120 mm Explanation: Normal blood pressure is considered to be at or below 120 over 80 (120/80). Normally, blood pressures are usually categorized into three groups: low (90/60 or*lower), high ( 140 / 90 or higher), and normal (values above 90/60 and below 130/80).
Description : The blood cholesterol level in 100ml of blood in a normal person varies between (1) 150 and 200 mg (2) 120 and 200 mg (3) 100 and 180 mg (4) 80 and 160 mg
Last Answer : (1) 150 and 200 mg Explanation: Cholesterol is defined as a waxy alcohol, fat-like substance that occurs naturally in all areas of the human body. Cholesterol is measured in milligrams per 100 ... to be normal blood cholesterol; 200-239 mg/dL borderlinehigh; and > 240 mg/dl high cholesterol.
Description : What is the pressure range between which Lamont boiler operator ? a. 80-120 bar b. 120-160 bar c. 180-360 bar d. 450-560 bar
Last Answer : b. 120-160 bar
Last Answer : 120/80 mm Hg
Description : Normal blood pressure of man is (1) 80/120 mm Hg (2) 90/140 mm Hg (3) 120/160 mm Hg (4) 85/120 mm Hg
Last Answer : 80/120 mm Hg
Description : The blood cholesterol level in 100 ml of blood in a normal person varies between— (1) 150 and 200 mg (2) 120 and 200 mg (3) 100 and 180 mg (4) 80 and 160 mg
Last Answer : 150 and 200 mg
Description : Following an experiment, Jamie estimates that his probability of making a three-pointer with a basketball is 0.8. If he shoots 160 attempts from the three-point line, how many times can he expect to make a three-point basket A. 32 B. 80 C. 128 D. 160?
Last Answer : 128
Description : The temperature of interior surface of the cylinder wall in normal operation is not allowed to exceed a. 80 C b. 120 C c. 180 C d. 240 C
Last Answer : ANSWER c. 180 C
Description : What is the average level of cholesterol in an egg? a. 80 mg c. 240 mg b. 120 mg d. 320 mg
Last Answer : c. 240 mg
Description : A circuit has a resistance of 200 ohms. The resistance of the circuit can be reduced to 120 ohms by adding which of the following to the circuit. w) 80 ohm resistor in series x) 150 ohm resistor in parallel y) 240 ohm resistor in series z) 300 ohm resistor in parallel
Last Answer : ANSWER: Z -- 300 OHM RESISTOR IN PARALLEL
Description : Two taps M and N can alone fill a tank in 80 minutes and 120 minutes respectively. But due to a leakage of tank, it took 12 more minutes to fill the tank. In how many hours, the leak can alone empty the full tank? A) 240 B) 230 C) 248 D) 256
Last Answer : A A and B can fill tank in (1/80 + 1/120) = 1/48 so 48minutes But it took 12 more minutes, this means the tank got full in 48+12= 60 minutes So (1/80 + 1/120 – 1/x) = 1/60 1/X=1/80+1/120-1/60 Solve, x = 240
Description : Gametes have a. homologous chromosomes. b. twice the number of chromosomes found in body cells. c. two sets of chromosomes. d. one allele for each gene.
Last Answer : d. one allele for each gene.
Description : What is the power of the objective lens of a microscope if an eyepiece of power 10x is used and the total magnification of the object is 40x? (A) 4 (B) 10 (C) 40 (D) 400
Last Answer : (A) 4
Description : Two linked genes a and b show 20% recombination. the individuals of a dihybrid cross between ++/++ × ab/ab shall show gametes (a) ++ : 80 : : ab : 20 (b) ++ : 50 : : ab : 50 (c) ++ : 40 : : ab : 40 : : + a : 10 : : + b : 10 (d) ++ : 30 : : ab : 30 : : + a : 20 : : + b : 20.
Last Answer : (c) ++ : 40 : : ab : 40 : : + a : 10 : : + b : 10
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 : What is the limit of MG/DL, of blood sugar in the normal person at the time of fast? (1) 40-60 (2) 120-150 (3) 70-100 (4) 160-200
Last Answer : (3) 70-100 Explanation: The mean normal blood glucose level in humans is about 4 mM (4 mmol/L, or 72 mg/dL, i.e. milligrams/deciliter); however, this level fluctuates throughout the day. Glucose ... day (termed "the fasting level"), and rise after meals for an hour or two by a few millimolar.
Description : Q.61. CA Co manufactures a single product and has drawn up the following flexed budget for the year. 60% 70% 80% Rs Rs Rs Direct materials 120,000 140,000 160,000 Direct labour 90,000 105,000 120,000 Production ... activity? (a) Rs 330,300 (b) Rs 370,300 (c) Rs 373,300 (d) Rs 377,300
Last Answer : (b) Rs 370,300
Description : What is the limit of MG/DL of blood sugar in the normal person at the time of fast ? (1) 40-60 (2) 120-150 (3) 70-100 (4) 160-200
Last Answer : 70-100
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 : How are cells with delimited nucleus called ?
Last Answer : What are the main elements of the nucleus? Cells with delimited nucleus are called eukaryotic cells. Organisms composed of one or more eukaryotic cells are called eukaryotes. The mains elements of the ... the nucleolus, the karyolymph, or nucleoplasm, and the nuclear membrane (or karyotheca).
Description : What are some examples of secretory cells ?
Last Answer : Endocrine and exocrine pancreatic cells, thyroid and parathyroid endocrine cells, adenohypophysis, adrenal and pineal endocrine cells, the many types of gastric exocrine and endocrine cells, the mucous secretory cells ... of the ovaries and testicles, etc., are all examples of secretory cells.
Description : Which cell organelles are well-developed in secretory cells ?
Last Answer : In secretory cells, like the secretory cells of endocrine glands, organelles related to production, processing and exportation of substances are widely present and well-developed. These ... protein synthesis between the cytoplasm and the nucleus. Rough endoplasmic reticulum Golgi apparatus
Description : What are some examples of movement created by the contraction of sarcomeres of the muscle cells ?
Last Answer : The handling of a cup of coffee, the peristaltic movements of the bowels, the cardiac beats and even a smile are examples of movement created by contraction of the sarcomeres of the muscle cells. This contraction is a type of cell movement.
Description : What is deplasmolysis of plant cells ?
Last Answer : The plant cell when placed under hypertonic medium loses a great amount of water and its cell membrane detaches from the cell wall. In that situation the cell is called plasmolysed cell. When ... medium it absorbs water and becomes a turgid cell. This phenomenon is called deplasmolysis.
Description : What are the values of DPD for plant cells under hypertonic ?
Last Answer : isotonic and hypotonic media? In plant cells under hypertonic medium there is loss of water for the exterior, SF > 0 (the vacuolar pressure is high because it is concentrated) and TP = 0 (there ... (since the osmotic pressure is totally compensated by the distension of the cell wall) and DPD =
Description : What is the wall resistance of plant cells ?
Last Answer : Does this resistance facilitate or make it difficult the entrance of water in the cell? Wall resistance, or turgor pressure (TP), is the pressure made by the distension of the plant cell wall in ... it acts forcing the exiting of water and compensating the entrance of the solvent by osmosis.
Description : Why can mitochondria be considered the power plants of the aerobic cells ?
Last Answer : Mitochondria are the power plants of aerobic cells because within them the final stages of the cellular respiration process occurs. Cellular respiration is the process of using organic molecule (mainly ... of the cellular respiration take place: the Krebs cycle and the respiratory chain.
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 : Do membranes form only the outer wrapping of cells ?
Last Answer : Lipid membranes do not form only the outer cover of cells. Cell organelles, such as the Golgi complex, mitochondria, chloroplasts, lysosomes, the endoplasmic reticula and the nucleus, are delimited by membranes too. Cell Structure Review - Image Diversity: cell nucleus
Description : Do bacteria cells have nucleus ?
Last Answer : In bacteria the genetic material is dispersed in the cytosol and there is no internal membrane that delimits a nucleus.
Description : What are the two big groups into which cells are classified ?
Last Answer : Cells can be classified as eukaryotic or prokaryotic. Prokaryotic cell is that without a delimited nucleus. Eukaryotic cells are those with nucleus delimited by membrane. Cell Structure Review - Image Diversity: eukaryotic cell prokaryotic cell
Description : Are plasma membranes the outer boundaries of all cells?
Last Answer : No, in many cells the plasma membrane is encased within an extraneous coat of nonliving material that usually confers some rigidity on the cell it surrounds. Although not affecting permeability, this ... of this structure is not completely clear. In Euglena, it consists of flexible protein strips.
Description : Will growth factors can stimulate cells to divide?
Last Answer : Cyclin-Cdk complexes provide internal control for cell cycle decisions. Cells in multicellular organisms must divide only when appropriate. They must respond to external signals, controls called growth factors. ... either make their own growth factors Or no longer require them to start cycling.
Description : In many types of cancer, proteins that are crucial regulators of the cell cycle are often mutated and cannot function correctly. This leads to the evasion of apoptosis and to the loss of control of cell ... protein named p53. What is the normal function of p53 that is lost when it is mutated?
Last Answer : Normally, p53 senses DNA damage and acts as a transcription factor for checkpoint control genes.
Description : Tissues are constructed from many distinct cell types that perform different functions in response to signals from each other and the extracellular matrix. During tissue development and tissue regeneration, ... that stem cells undergo when they are required to generate a particular type of cell?
Last Answer : Asymmetric cell division. After asymmetric division, each of the two resulting daughter cells has a unique life course. For example, one daughter cell may differentiate into a specific cell type ( ... cell), whereas the other daughter cell may remain a stem cell with unlimited proliferative ability.
Description : What is the name of the physical process that finally splits the parent cell into two identical daughter cells?
Last Answer : Cytokinesis. Also more commonly known as cell division
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.