Description : If an enzyme‘s active site becomes deformed, inhibition was likely responsible. a. Metabolic b. Competitive c. Noncompetitive d. Cellular
Last Answer : c. Noncompetitive
Description : What is The cellular structure that is responsible for synthesizing proteins is?
Last Answer : Feel Free to Answer
Description : Cells are active and synthesizing new protoplasm. This stage of growth is called a. Lag phase b. Stationary phase c. Log phase d. All of these
Last Answer : Ans: A
Description : Physiologically the cells are active and are synthesizing new protoplasm in which stage of the growth in bacteria a. Log phase b. Lag phase c. Stationary phase d. None of these
Last Answer : Ans: C
Description : Mammalian cells are not inhibited by low concentrations of tetracyclines that inhibit sensitive microorganisms because: A. Host cells lack active transport mechanism for tetracyclines B. Host cells actively pump out ... host cells has low affinity for tetracyclines D. Both A' and C' are correct
Last Answer : D. Both ‘A’ and ‘C’ are correct
Description : Which one of the following statements is fully correct? (A) Hormones are needed in the diet (B) Hormones can be elaborated only by endocrine glands (C) All the hormones enter the ... (D) Hormones are substance synthesized in the body in small quantities and control and regulate metabolic events
Last Answer : Answer : D
Description : Active and passive transports across cell membrane differ in (a) passive transport is nonselective (b) passive transport is along the concentration gradient while active transport is due to metabolic ... (d) passive transport is confined to anions while active transport is confined to cations.
Last Answer : (b) passive transport is along the concentration gradient while active transport is due to metabolic energy
Description : The proteins destined to be transported out of the cell have all the following features except (A) They possess a signal sequence (B) Ribosomes synthesizing them are bound to endoplasmic reticulum (C) After synthesis, they are delivered into Golgi apparatus (D) They are tagged with ubiquitin
Description : Which of the following organelle is responsible for synthesizing of proteins in the cell? (1) Golgi apparatus (2) Ribosome (3) Lysosome (4) Nucleus
Last Answer : (2) Ribosome Explanation: The Ribosome, a complex molecule made of ribosomal RNA molecules, is responsible for protein synthesis in the cells.
Description : Bacteria develop tetracycline resistance by the following mechanisms except: A. Losing tetracycline concentrating mechanisms B. Elaborating tetracycline inactivating enzyme C. Synthesizing a protection protein' ... the target site D. Actively pumping out tetracycline that has entered the cell
Last Answer : B. Elaborating tetracycline inactivating enzym
Description : $ Those enzymes which are active inside a cell are called extra-cellular enzymes. ! Enzymes lower the rate of biological activities.
Last Answer : $ Those enzymes which are active inside a cell are called extra-cellular enzymes. ! Enzymes lower the rate ... wrong D. If both As and R are wrong.
Description : Interferon (A) Is virus specific (B) Is a bacterial product (C) Is a synthetic antiviral agent (D) Requires expression of cellular genes
Description : Proto-oncogenes are: B A. DNA sequences in cells that are oncogenes themselves B. Cellular copies of genes that were first found in oncogenic retroviruses C. DNA viral sequences that are known to infect human cells D. Bacterial DNA counterparts
Last Answer : Cellular copies of genes that were first found in oncogenic retroviruses
Description : There are two properties of the cell necessary to maintain nonequilibrium cellular composition; the first is selectivity and the second is energy conversion. Which of the following statement(s ... transported via secondary active transport include hydrogen ions, calcium, amino acids and glucose
Last Answer : Answer: c, d The selectivity of the plasma membrane, although impressive, cannot account for the nonequilibrium composition of living cells. A cell can be maintained in a nonequilibrium state only by ... to drive the transport of a second species such as protons, calcium, amino acids, or glucose
Description : The site of enzymes directing the metabolic oxidation (respiration), ATP synthesis and considered as power house of cell are (A) Lysosomes (B) Microsomes (C) Mitochondria (D) Golgi apparatus
Last Answer : (C) Mitochondria
Description : Active transport of a substance across biological membranes has the following characteristics except: A. It is specific B. It is pH dependent C. It is saturable D. It requires metabolic energy
Last Answer : B. It is pH dependent
Description : Explain active transport of substances across cell membranes. -Biology
Last Answer : answer:
Description : In most metabolic pathways, all needed enzymes are arranged together in a multienzyme complex within a (A) Solution of ATP (B) Membrane (C) Quanternary protein (D) Coenzyme
Last Answer : Answer : B
Description : synthesizing information can be done by creating -General Knowledge
Last Answer : All of These. Synthesizing information can be done by creating Timelines, Venn diagrams and Graphs or charts.
Description : What are techniques historians use when synthesizing evidence?
Last Answer : Comparing and contrasting historical sources
Description : What organ has many functions including producing bile and synthesizing carbohydrates and fats.?
Last Answer : Need answer
Description : The process of synthesizing multiple copies of a particular DNA sequence
Last Answer : Ans. Gene cloning
Description : The plants which are green in colour and capable of synthesizing their own food are known as?
Last Answer : Autotrophic plants
Description : Which of the following is correct about the photorespiration? a. Photorespiration is more efficient in synthesizing glucose than photosynthesis. b. C3 plants are best adapted to handle c. ... During photorespiration plants use oxygen to break down carbohydrates and release e. All of these
Last Answer : c. Photorespiration is likely to occur when oxygen level is high and CO2 level is
Description : Flora present in human intestine is capable of synthesizing (a) Vit. K (b) vit. C (c) Vit. A (d) vit. B
Last Answer : (d) vit. B
Description : This woman scientist was the oldest daughter of another very well-known woman scientist. She was the second woman in history to win a Nobel Prize in science, receiving the prize in 1935 for her work in synthesizing new radioactive elements. Who is this famous woman scientist?
Last Answer : ANSWER: IRENE JOLIET-CURIE
Description : .In Drosophila, the XXY condition leads to femaleness whereas in human beings the same condition leads to Klinefelter's syndrome in male. It proves (a) in human beings Y chromosome is active in ... (c) in Drosophila Y chromosome decides femaleness (d) Y chromosome of man have genes for syndrome.
Last Answer : (a) in human beings Y chromosome is active in sex determination
Description : Why the bacterium Treponemapallidum is difficult to culture? A-.Because it requires a great deal of water to reproduce B- .Because it is unable to use carbohydrates as an energy source ... TCA cycle and oxidative phosphorylation D- Because it requires extremely low temperature at which water freezes
Last Answer : Because it lacks the genes needed for TCA cycle and oxidative phosphorylation
Description : Short-lived immunity acquired from mother to fetus across placenta or through mother’s milk to the infant is categorised as (a) active immunity (b) passive immunity (c) cellular immunity (d) innate non-specific immunity.
Last Answer : (b) passive immunity
Description : Which one of the following cellular parts is correctly described? (a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts (b) Centrioles - sites for active RNA synthesis (c) Ribosomes - ... cytoplasm are smaller (70S) (d) Lysosomes - optimally active at a pH of about 8.5
Last Answer : (a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts
Description : What are the raw materials (ingredients) needed for cellular respiration?
Description : Osmotically active substances in plasma are (A) Sodium (B) Chloride (C) Proteins (D) All of these
Description : Urinary 17 ketosteroids (A) Are not found in women (B) Reflect the total production of androgenic substances (C) Indicate the total production of sex hormone (D) Are highly active androgens
Description : For conjugation with many enogenous and exogenous substances before elimination in urine, the uronic acid pathway provides (A) Active glucuronate (B) Gulonate (C) Xylulose (D) Xylitol
Last Answer : Answer : A
Description : Biogradable wastes can usually be converted into useful substances with the help of: (1) nuclear proteins (2) radio-active substances (3) viruses (4) bacteria
Last Answer : (4) bacteria Explanation: Bacteria can convert biodegradable wastes into useful substances.
Description : "The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances". This is the (A) Lewis- ... (B) Statement of Van't Hoff Equation (C) Le-Chatelier's principle (D) None of these
Last Answer : (D) None of these
Description : .In functional allelopathy a). Toxic substances are released as such from the plants b). A precursor is released and is converted into active substances by some microorganisms c). No release of any toxic substance d). release of nitrogen from nodule of legume takes place
Last Answer : b). A precursor is released and is converted into active substances by some microorganisms
Description : Substances insoluble in a membrane are carried across the membrane with the concentration gradient by means of a carrier molecule in a process known as: a) osmosis. b) diffusion. c) active transport. d) facilitated diffusion.
Last Answer : ANSWER: D -- FACILITATED DIFFUSION.
Description : Oncotic pressure refers to a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin. b) the number of dissolved particles contained in a ... . Osmotic pressure is the amount of pressure needed to stop the flow of water by osmosis.
Last Answer : a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin.
Description : What refers to the heat needed to change the temperature of the substances without changing its phases? a. Latent heat b. Sensible heat c. Specific heat d. entropy
Last Answer : Sensible heat
Description : Assertion: Nucleus controls the metabolic activitie of cytoplasm. Reason: Nucleus synthesizes enzymes and send them to cytoplasm to control the activi
Last Answer : Assertion: Nucleus controls the metabolic activitie of cytoplasm. Reason: Nucleus synthesizes enzymes and ... If both Assertion & Reason are false.
Description : Basal metabolic rate is under control of
Last Answer : Basal metabolic rate is under control of A. Glucagon B. Insulin C. Thyroxine D. Both (1) and (2)
Description : Select the β-adrenergic blocker that has additional α1 blocking, vasodilator and antioxidant properties: A. Carvedilol B. Celiprolol C. Acebutolol D. Metoprolol
Last Answer : C. Acebutolol
Description : In hyperthyroidism, β adrenergic blockers are used: A. To induce euthyroid state B. As definitive therapy C. For rapid control of certain symptoms while awaiting response to carbimazole D. To reduce basal metabolic rate
Last Answer : C. For rapid control of certain symptoms while awaiting response to carbimazole
Description : What cell main job is to control which substances enter and leave a plant cell.?
Last Answer : ?
Description : How Phase of the cell cycle in which the cell grows rapidly and performs many metabolic processes?
Description : Answer: b Metabolic response to injury results in increased energy expenditure. If energy intake is less than expenditure, oxidation of body fat stores and erosion of lean body mass will occur ... requirements, caloric requirements should be distributed at a ratio of 70% as glucose and 30% as fat
Last Answer : Which of the following statement(s) is/are true concerning body fuel reserves? a. The largest fuel reserve in the body is skeletal muscle b. Fat provides about 9 calories/gram c. Free glucose and glycogen stores are a trivial fuel reserve d. Body protein is a valuable storage form of energy
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