In plants, enzymes occur in (A) Flowers only (B) Leaves only (C) All living cells (D) Storage organs only

In plants, enzymes occur in (A) Flowers only (B) Leaves only (C) All living cells (D) Storage organs only
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Answer :  C
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Template/lock and key theory of enzyme action is supported by (A) Enzymes speed up reaction (B) Enzymes occur in living beings and speed up certain reactions (C) Enzymes determine the direction of reaction (D) Compounds similar to substrate inhibit enzyme activity

Description : Template/lock and key theory of enzyme action is supported by (A) Enzymes speed up reaction (B) Enzymes occur in living beings and speed up certain reactions (C) Enzymes determine the direction of reaction (D) Compounds similar to substrate inhibit enzyme activity

Last Answer : Answer : D

Living cells have the unique ability to synthesize only _________ the form of optical isomer due to _________. (A) ‘d’ form, stereospecific enzymes (B) ‘l’ form stereospecific enzymes (C) ‘d’ form, DNA (D) ‘L’ form, DNA

Description : Living cells have the unique ability to synthesize only _________ the form of optical isomer due to _________. (A) ‘d’ form, stereospecific enzymes (B) ‘l’ form stereospecific enzymes (C) ‘d’ form, DNA (D) ‘L’ form, DNA

Last Answer : Answer : B

Read the following four statements (A – D). (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane. (B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth. (C) Stamens in flowers of Gloriosa and Petunia are polyandrous.(D) Symbiotic nitrogen fixers occur in free-living state also in soil.

Description : Read the following four statements (A - D). (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane. (B) In dicot stems, a new cambium ... Petunia are polyandrous. (D) Symbiotic nitrogen fixers occur in free-living state also in soil.

Last Answer : (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.

Enzymes, which are produced in inactive form in the living cells, are called (A) Papain (B) Lysozymes (C) Apoenzymes (D) Proenzymes

Description : Enzymes, which are produced in inactive form in the living cells, are called (A) Papain (B) Lysozymes (C) Apoenzymes (D) Proenzymes

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Name the organs responsible for the following functions present in either elements, plants or human. a) Vision b) Reproduction c) Hormone secretion d) Blood pumping e) Food storage

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Last Answer : Answers: a) Eye b) Gonades c) Glands d) Heart e) Stem and stomach

Carbohydrates are commonly found as starch in plants storage organs. Which of the following five properties of starch (1-5) make it useful as a storage material? (1) Easily translocated (2) Chemically non-reactive (3) Easily digested by animals (4) Osmotically inactive (5) Synthesized during photosynthesis The useful properties are (a) (1), (3) and (5) (b) (1) and (5) (c) (2) and (3) (d) (2) and (4).

Description : Carbohydrates are commonly found as starch in plants storage organs. Which of the following five properties of starch (1-5) make it useful as a storage material? (1) Easily translocated (2) Chemically non-reactive (3) Easily digested by ... 5) (b) (1) and (5) (c) (2) and (3) (d) (2) and (4).

Last Answer : (d) (2) and (4).

Which of the following statements is true? (A) Enzymes have names ending ase (B) Enzymes are highly specific in their action (C) Enzymes are living organisms (D) Enzymes get activated on heating

Description : Which of the following statements is true? (A) Enzymes have names ending ase (B) Enzymes are highly specific in their action (C) Enzymes are living organisms (D) Enzymes get activated on heating

Last Answer : Answer : B

Consider the following statements: (1) Cucurbits are monoecious plant (2) In mango, neuter, male and female and female flowers occur together (3) Legumenous plants how unisexuality (4) Oblique septa is found in Rosaceae

Description : Consider the following statements: (1) Cucurbits are monoecious plant (2) In mango, neuter, male and female and female flowers occur together (3) Legumenous plants how unisexuality (4) Oblique septa is found in Rosaceae

Last Answer : Ans. ((b))

When male and female flowers occur on different plants

Description : When male and female flowers occur on different plants

Last Answer : Ans. Diocious

In the process of transcription in bacterial cells (A) Initiation requires rho protein (B) RNA polymerase incorporates methylated bases in correct sequence (C) Both the sigma unit and core enzymes of RNA polymerase are required for accurate promotor site binding (D) Primase is necessary for initiation

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Last Answer : Answer : C

To make the living area of a landscape appear larger, a designer should include plants that feature: a. Warm-colored flowers such as reds, oranges, yellows b. Cool-colored flowers such as blues, purples, lavenders c. A combination of warm- and cool-colored flowers d. All white flowers

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Last Answer : Cool-colored flowers such as blues, purples, lavenders

What is the storage organs of the onion?

Description : What is the storage organs of the onion?

Last Answer : What is the answer ?

Lateral line sense organs occur in

Description : Lateral line sense organs occur in

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What is correct about Taenia? (a) Male organs occur in posterior proglottides. (b) Male organs occur in anterior proglottides. (c) Female organs occur in anterior proglottides. (d) Mature proglottides contain both male and female organs.

Description : What is correct about Taenia? (a) Male organs occur in posterior proglottides. (b) Male organs occur in anterior proglottides. (c) Female organs occur in anterior proglottides. (d) Mature proglottides contain both male and female organs.

Last Answer : (d) Mature proglottides contain both male and female organs

Why are organs such as the lungs, heart, and stomach made up of many different kinds of specialized cells rather than only one kind?

Description : Why are organs such as the lungs, heart, and stomach made up of many different kinds of specialized cells rather than only one kind?

Last Answer : Each tissue is very good at its own job. Organs and organ systems each are specialised also. So they need to be made, of the tissue, that specialises in the job, that organ has to do.

Hormones act only on specific organs or tissues. These are called (A) Active sites (B) Reaction centre (C) Target organ/Tissue(D) Physiological site HORMONE METABOLISM 231

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Last Answer : Answer : C

Maximum number of enzymes occur in

Description : Maximum number of enzymes occur in

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What is needed in order for reactions to occur at body temperatures? a. buffers b. acids c. bases d. enzymes

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Last Answer : d. enzymes

plants that look like hosta leaves on them, then they disappear and up shoots this stem with fire balls type of flowers

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In some plants the buds contain both leaves and flowers and known as a. Leaf buds b. Flower buds c. Scaly buds d. Mixed buds

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Which of the following are stems of plants which are leaf like in form, are green, and perform the functions of leaves. In addition, they may bear fruit, flowers, and temporary leaves? a) Tubers b) rhizomes c) cladophylls d) none of the above

Description : Which of the following are stems of plants which are leaf like in form, are green, and perform the functions of leaves. In addition, they may bear fruit, flowers, and temporary leaves? a) Tubers b) rhizomes c) cladophylls d) none of the above

Last Answer : ANSWER: C -- CLADOPHYLLS 

Under virtual storage ________ A. Two or more programs are stored in primary storage B. Only active pages of a program in primary storage C. Inter-program, interference may occur D. None of the Above

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Why do protease-supplying cells of the stomach and of the pancreas make only precursors of the active proteolytic enzymes?

Description : Why do protease-supplying cells of the stomach and of the pancreas make only precursors of the active proteolytic enzymes?

Last Answer : The stomach and the pancreas make zymogens of the proteases pepsin, chymotrypsin and trypsin and these zymogens are released into the gastric or duodenal lumen for activation. This happens to ... production of zymogens is a protective strategy against the natural effects of the proteolytic enzymes.

What if Stem Cells can create new organs and prolong life?

Description : What if Stem Cells can create new organs and prolong life?

Last Answer : A wonderful path. And it eliminates the need for therapeutic cloning.

Sponges in which the cells are loosely aggregated and do not form tissues or organs are grouped under which subkingdom ?

Description : Sponges in which the cells are loosely aggregated and do not form tissues or organs are grouped under which subkingdom ?

Last Answer : Sponges in which the cells are loosely aggregated and do not form tissues or organs are grouped ... Metazoa B. Eumetazoa C. Parazoa D. Bilateria

The animals in which cells are organized into structural and functional units called as tissues, organs, and organ system are grouped under which subk

Description : The animals in which cells are organized into structural and functional units called as tissues, organs, and organ system are grouped under which subk

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$ The excretory organs of Flatworms are called Flame cells. ! Excretory cells help in endocytosis.

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What is from by a group of cells which work together as organs in an organ system?

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Last Answer : Need answer

Aging changes in organs - tissue - cells?

Description : Aging changes in organs - tissue - cells?

Last Answer : InformationAll vital organs begin to lose some function as you age. Aging changes have been found in all of the body's cells, tissues and organs, and these changes affect the functioning of all ... tissue provides a covering for deeper body layers. The skin and the linings of the various passages

In multicellular organisms, there are different kinds of cells that are organized into tissues and organs to perform special functions. What is the function of a skin cell?

Description : In multicellular organisms, there are different kinds of cells that are organized into tissues and organs to perform special functions. What is the function of a skin cell?

Last Answer : to protect the body from foreign substances

The phasic change of individual cells into tissues, organs and organisms

Description : The phasic change of individual cells into tissues, organs and organisms

Last Answer : Ans. Development

Which option is correct about the levels of organization: D A. Molecules - atoms -cellstissues -organs-body-organismpopulation - community - ecosystem B. Atoms -molecules -tissues -cells-organs-body-organismcommunity -population -ecosystem C. Molecules-Atoms-cells-organs-tissues-body-organismD. Atoms-molecules-cells-tissues-organs-body-organism

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Last Answer : Atoms-molecules-cells-tissues-organs-body-organism

Which option is correct about the levels of organization: D A. Molecules - atoms -cellstissues -organs-body-organismpopulation - community - ecosystem B. Atoms -molecules -tissues -cells-organs-body-organismcommunity -population -ecosystemC. Molecules-Atoms-cells-organs-tissues-body-organismcommunity-population-ecosystemD. Atoms-molecules-cells-tissues-organs-body-organismpopulation-community-ecosystem

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Last Answer : Atoms -molecules -tissues -cells-organs-body-organismcommunity -population -ecosystem

Which of the following types of cells have a latent ability to regenerate? a) Stable Stable cells have a latent ability to regenerate if they are damaged or destroyed and are found in the kidney, liver, and pancreas, among other body organs. b) Labile Labile cells multiply constantly to replace cells worn out by normal physiologic processes. c) Permanent Permanent cells include neurons — the nerve cell bodies, not their axons. Destruction of a neuron causes permanent loss, but axons may regenerate. d) Epithelial Epithelial cells are a type of labile cell that multiply constantly to replace cells worn out by normal physiologic processes.

Description : Which of the following types of cells have a latent ability to regenerate? a) Stable Stable cells have a latent ability to regenerate if they are damaged or destroyed and are found in the ... a type of labile cell that multiply constantly to replace cells worn out by normal physiologic processes.

Last Answer : a) Stable Stable cells have a latent ability to regenerate if they are damaged or destroyed and are found in the kidney, liver, and pancreas, among other body organs.

Study of the micro anatomy of cells, tissues and organs as seen through a microscope is called

Description : Study of the micro anatomy of cells, tissues and organs as seen through a microscope is called

Last Answer : Histology

Study of diseases of blood cells, platelets and the tissues and organs of hematopoietic system is called as __________. a. Forensic pathology b. Clinical pathology c. Immunopathology d. Hematopathology

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Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these (a) help in regulating metabolism (b) are exclusively synthesized in the body of a living organism as at present (c) are conjugated proteins (d) enhance oxidative metabolism.

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Last Answer : (a) help in regulating metabolism

The major role of minor elements inside living organisms is to act as (a) co-factors of enzymes (b) building blocks of important amino acids (c) constituent of hormones (d) binder of cell structure.

Description : The major role of minor elements inside living organisms is to act as (a) co-factors of enzymes (b) building blocks of important amino acids (c) constituent of hormones (d) binder of cell structure.

Last Answer : (a) co-factors of enzymes

Enzymes are(A) Proteins with high molecular weight (around 10,000)(B) Derived from living organisms(C) Catalyst for temperature sensitive reactions(D) All (A), (B) and (C)

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Last Answer : (D) All (A), (B) and (C)

Enzymes are A- organic compounds produced by living organism B- .inorganic compounds C- organic as well as inorganic compounds D- all of these

Description : Enzymes are A- organic compounds produced by living organism B- .inorganic compounds C- organic as well as inorganic compounds D- all of these

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DNA contains some palindromic sequences which (A) Mark the site for the formation of replication forks (B) Direct DNA polymerase to turn back to replicate the other strand (C) Are recognized by restriction enzymes (D) Are found only in bacterial DNA

Description : DNA contains some palindromic sequences which (A) Mark the site for the formation of replication forks (B) Direct DNA polymerase to turn back to replicate the other strand (C) Are recognized by restriction enzymes (D) Are found only in bacterial DNA

Last Answer : Answer : C

Which of the following is not true regarding enzymes? (A) They catalyze only a particular type of reaction (B) They remain active even after separation from the source (C) They are destroyed after the completion of the reaction they catalyse (D) They are irreversibly destroyed at high temperature (E) Their activity depends on the pH of the solution

Description : Which of the following is not true regarding enzymes? (A) They catalyze only a particular type of reaction (B) They remain active even after separation from the source (C) They are destroyed ... They are irreversibly destroyed at high temperature (E) Their activity depends on the pH of the solution

Last Answer : Answer : C

Cardiac muscle contains which of the following CK osoenzyme? (A) BB only (B) MM and BB only (C) MM, BB and MB (D) MM and MB only ENZYMES 169

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Last Answer : Answer : D

It is the only amino acid having an ionizing ‘R’ group with a pK’ near 7 and is important in the active site of some enzymes: (A) Arginine (B) Cystein (C) Cystine (D) Histidine

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Last Answer : Answer : D

For biosynthesis of proteins (A) Amino acids only are required (B) Amino acids and nucleic acids only are required (C) Amino acid, nucleic acids and ATP only are required (D) Amino acids, nucleic acids, ATP, GTP, enzymes and activators are required

Description : For biosynthesis of proteins (A) Amino acids only are required (B) Amino acids and nucleic acids only are required (C) Amino acid, nucleic acids and ATP only are required (D) Amino acids, nucleic acids, ATP, GTP, enzymes and activators are required

Last Answer : Answer : D

The enzymes of urea synthesis are found in (A) Mitochondria only (B) Cytosol only (C) Both mitochondria and cytosol (D) Nucleus

Description : The enzymes of urea synthesis are found in (A) Mitochondria only (B) Cytosol only (C) Both mitochondria and cytosol (D) Nucleus

Last Answer : Answer : C

The processing of green tea involves brief heating of the freshly picked leaves. What could be the possible reason/s? 1. To retain green colour of leaves 2. To give it a special flavour 3. To denature leaf enzymes for preventing fermentation Which of the above reason/s is/are true? (a) Only 1 (b) 1 and 3 (c) Only 2 (d) Only 3

Description : The processing of green tea involves brief heating of the freshly picked leaves. What could be the possible reason/s? 1. To retain green colour of leaves 2. To give it a special flavour 3. To denature leaf enzymes for preventing ... reason/s is/are true? (a) Only 1 (b) 1 and 3 (c) Only 2 (d) Only 3

Last Answer : Ans:(d)

When male and female flowers occur on the same plant

Description : When male and female flowers occur on the same plant

Last Answer : Ans. Monocius

Which one of the following aspects is an exclusive characteristic of living things? (a) Isolated metabolic reactions occur in vitro (b) Increase in mass from inside only (c) Perception of events happening in the environment and their memory. (d) Increase in mass by accumulation of material both on surface as well as internally

Description : Which one of the following aspects is an exclusive characteristic of living things? (a) Isolated metabolic reactions occur in vitro (b) Increase in mass from inside only (c) Perception of events ... memory. (d) Increase in mass by accumulation of material both on surface as well as internally

Last Answer : (d) Increase in mass by accumulation of material both on surface as well as internally.

In living things cells must be a solution where water leaves and enters the cell at?

Description : In living things cells must be a solution where water leaves and enters the cell at?

Last Answer : Need answer