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

Why Cells that carry on digestion within the cell do not partly digest themselves because they secrete their digestive enzymes into membrane-enclosed?
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What is the digestive enzyme that acts within the stomach? Which type of food does it digest? What are the cells that produce that enzyme?

Description : What is the digestive enzyme that acts within the stomach? Which type of food does it digest? What are the cells that produce that enzyme?

Last Answer : The digestive enzyme that acts in the stomach is pepsin. Pepsin has the function of breaking proteins into smaller peptides. The gastric cells that produce pepsinogen (the zymogen precursor of pepsin) are the chief cells. Digestion System - Image Diversity: chief cells

The diagram represents a section through the small intestine.What is the role of the structure labelled X ? (a) They secrete enzymes for digestion (b) They secrete hormones (c) They decrease the surface area of absorption (d) They increase the surface area of absorption

Description : The diagram represents a section through the small intestine.What is the role of the structure labelled X ? (a) They secrete enzymes for digestion (b) They secrete hormones (c) They decrease the surface area of absorption (d) They increase the surface area of absorption

Last Answer : (d) They increase the surface area of absorption

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)

Which one of the following statements is true regarding digestion and absorption of food in humans? (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+. (b) Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries. (c) About 60% of starch is hydrolysed by salivary amylase in our mouth. (d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

Description : Which one of the following statements is true regarding digestion and absorption of food in humans? (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions ... amylase in our mouth. (d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

Last Answer : (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na

The process of self-digestion of selective non-functional organelles by a cell through the action of enzymes originating within the cell is referred to as (A) Pinocytosis (B) Endocytosis (C) Autophagy (D) Cytotoxicity

Description : The process of self-digestion of selective non-functional organelles by a cell through the action of enzymes originating within the cell is referred to as (A) Pinocytosis (B) Endocytosis (C) Autophagy (D) Cytotoxicity

Last Answer : (C) Autophagy

Humans cannot digest cellulose because: a) it does not contain sugars b) it is made up of disaccharides c) it is made up of monosaccharides d) humans lack the proper enzymes

Description : Humans cannot digest cellulose because: a) it does not contain sugars b) it is made up of disaccharides c) it is made up of monosaccharides d) humans lack the proper enzymes

Last Answer : ANSWER: D -- HUMANS LACK THE PROPER ENZYMES 

Bile, an emulsifier liquid, is made by the liver and later stored within the gallbladder and released in the duodenum. Bile is composed of bile salts, cholesterol and bile pigments. Bile salts are detergents, amphiphilic molecules, i.e., molecules with a polar water-soluble portion and a non-polar fat-soluble portion. This feature allows bile salts to enclose fats inside water-soluble micelles in a process called emulsification for them to be in contact with intestinal lipases, enzymes that break fats into simpler fatty acids and glycerol. Digestion System - Image Diversity: gallbladder

Description : Bile, an emulsifier liquid, is made by the liver and later stored within the gallbladder and released in the duodenum. Bile is composed of bile salts, cholesterol and bile pigments. ... enzymes that break fats into simpler fatty acids and glycerol. Digestion System - Image Diversity: gallbladder

Last Answer : What is the adnexal organ of the digestive system in which bile is stored?

Considering the stomach's role in the digestive system, is it possible for a person to digest food without a stomach Explain your answer?

Description : Considering the stomach's role in the digestive system, is it possible for a person to digest food without a stomach Explain your answer?

Last Answer : One possible explanation could lie in the anatomy of the stomach and in the digestive mechanism. When lying on the left, the food has room to expand because the curvature of the stomach is enhanced in that position

Which one of the following does not secrete any digestive enzyme? (1) Liver (2) Salivary gland (3) Glands of small intestine (4) Pancreas

Description : Which one of the following does not secrete any digestive enzyme? (1) Liver (2) Salivary gland (3) Glands of small intestine (4) Pancreas

Last Answer : (1) Liver Explanation: Digestive enzymes are enzymes that break down polymeric macromolecules into their smaller building blocks, in order to facilitate their absorption by the body. Digestive enzymes are ... (small and large) secretions, or as part of the lining of the gastrointestinal tract.

Which of the following regions of the alimentary canal of rabbit does not secrete a digestive enzyme ? (a) Mouth (b) Oesophagus (c) Stomach (d) Duodenum

Description : Which of the following regions of the alimentary canal of rabbit does not secrete a digestive enzyme ? (a) Mouth (b) Oesophagus (c) Stomach (d) Duodenum

Last Answer : (b) Oesophagus

Which one of the following does not secrete any digestive enzyme? (1) Liver (2) Salivary gland (3) Glands of small intestine (4) Pancreas

Description : Which one of the following does not secrete any digestive enzyme? (1) Liver (2) Salivary gland (3) Glands of small intestine (4) Pancreas

Last Answer : Liver

The following statement(s) is/are true concerning cellular defense mechanisms. a. Macrophages function solely as antigen processing cells in the initial reaction to exposure to an antigen b. Macrophages may become activated and secrete cytokines c. Macrophages serve as phagocytic cells in the tissues but not within the bloodstream d. Polymorphonucleocytes (PMNS) are normally present in only small numbers within the tissue and enter an area of infection through diapedesis

Description : The following statement(s) is/are true concerning cellular defense mechanisms. a. Macrophages function solely as antigen processing cells in the initial reaction to exposure to an antigen b. Macrophages ... in only small numbers within the tissue and enter an area of infection through diapedesis

Last Answer : Answer: b, d A wide variety of cell types serve to provide host defense at several levels. Macrophages act as the initial antigen processing cell that serves to ... through diapedesis after chemotactic stimuli are excluded by macrophages, bacterial breakdown products, and complement activation

Pick up the correct statement from the following: A. Rate of digestion of sludge is more at higher temperature B. Thermophilic organisms digest the sludge if the temperature ranges from 40° to 60°C C. Mesophilic organisms digest the sludge if the temperature is between 25° and 40°C D. All the above

Description : Pick up the correct statement from the following: A. Rate of digestion of sludge is more at higher temperature B. Thermophilic organisms digest the sludge if the temperature ranges from 40° to 60°C C. Mesophilic organisms digest the sludge if the temperature is between 25° and 40°C D. All the above

Last Answer : ANS: D

Bile has what function in digestion? a) emulsify lipids b) digest proteins c) gluconeogenesis (pron: glue-ko-nee-o-gen-e-sis) d) digest carbohydrates

Description : Bile has what function in digestion? a) emulsify lipids b) digest proteins c) gluconeogenesis (pron: glue-ko-nee-o-gen-e-sis) d) digest carbohydrates

Last Answer : ANSWER: A -- EMULSIFY LIPIDS

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

In making ****, in the process of ____ barley grains are steeped in water while naturally occurring enzymes digest the starch to simpler carbohydrates. a. steeping b. mashing c. maltng d. worting

Description : In making beer, in the process of ____ barley grains are steeped in water while naturally occurring enzymes digest the starch to simpler carbohydrates. a. steeping b. mashing c. maltng d. worting

Last Answer : c. maltng

After digestion the next step is absorption done by cells of the mucous membrane of the intestine. For this task a large absorption surface is an advantage. How is it possible in the small internal space of the body of a pluricellular organism to present a large intestinal surface?

Description : After digestion the next step is absorption done by cells of the mucous membrane of the intestine. For this task a large absorption surface is an advantage. How is it possible in the small internal space of the body of a pluricellular organism to present a large intestinal surface?

Last Answer : Evolution tried to solve this problem in two ways. The simplest is the long and tubular shape of the bowels (approximately eight meters in extension), making possible that numerous ... function of increasing the absorption surface too. Digestion System - Image Diversity: intestinal villi microvilli

Select the alternative giving correct identification and function of the organelle ‘A’ in the diagram. (a) Mitochondria - Produce cellular energy in the form of ATP (b) Golgi body - Provides packaging material (c) Lysosomes - Secrete hydrolytic enzymes (d) Endoplasmic reticulum - Synthesis of lipids

Description : Select the alternative giving correct identification and function of the organelle A' in the diagram. (a) Mitochondria - Produce cellular energy in the form of ATP (b) Golgi body - ... packaging material (c) Lysosomes - Secrete hydrolytic enzymes (d) Endoplasmic reticulum - Synthesis of lipids

Last Answer : (a) Mitochondria - Produce cellular energy in the form of ATP

(a) Draw a diagram to show the nutrition in Amoeba and label the parts used for this purpose. Mention any other purpose served by this part other than nutrition. (b) Name the glands associated with digestion of starch in human digestive tract and mention their role. (c) How is required pH maintained in the stomach and small intestine? -Biology

Description : (a) Draw a diagram to show the nutrition in Amoeba and label the parts used for this purpose. Mention any other purpose served by this part other than nutrition. (b) Name the glands associated ... mention their role. (c) How is required pH maintained in the stomach and small intestine? -Biology

Last Answer : Answer.(a) Pseudopodia serves the purpose of locomotion apart from nutrition. (b) The salivary gland is associated with digestion of starch in human digestive tract. It secretes saliva which contains ... juice from liver makes the food alkaline in small intestine for the pancreatic enzymes to act.

In cell, digestive enzymes are found mainly in (A) Vacuoles (B) Lysosomes (C) Ribosomes (D) Lomasomes

Description : In cell, digestive enzymes are found mainly in (A) Vacuoles (B) Lysosomes (C) Ribosomes (D) Lomasomes

Last Answer : Answer : B

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

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

By generally dividing food into carbohydrates, fats and proteins and considering the digestive process until the pylorus (exit of stomach), which of these mentioned types of food have already undergone chemical digestion?

Description : By generally dividing food into carbohydrates, fats and proteins and considering the digestive process until the pylorus (exit of stomach), which of these mentioned types of food have already undergone chemical digestion?

Last Answer : Until the exit of the stomach, carbohydrates, in the mouth, and proteins, in the stomach, have already undergone chemical breaking by digestive enzymes. Carbohydrates have suffered action of the salivary ... of the gastric juice. Fats, until reaching the duodenum, do not undergo chemical digestion.

…………. are text, number cell references enclosed within parenthesis in a formula. -Technology

Description : …………. are text, number cell references enclosed within parenthesis in a formula. -Technology

Last Answer : Argumentsare text, number cell references enclosed within parenthesis in a formula.

How does digestion in beings of the phylum Annelida work and which type of digestive system do they have?

Description : How does digestion in beings of the phylum Annelida work and which type of digestive system do they have?

Last Answer : Digestion in beings of the phylum Annelida is extracellular. These animals have a complete digestive system, with mouth and anus. Image Diversity: earthworm digestive system

Zymogen cell and chief cells secrete (a) HCI (b) Mucus (c) Pepsi (d) Trypsin

Description : Zymogen cell and chief cells secrete (a) HCI (b) Mucus (c) Pepsi (d) Trypsin

Last Answer : (c) Pepsi

In this the DNA is kept in the nucleus which is enclosed by its own membrane?

Description : In this the DNA is kept in the nucleus which is enclosed by its own membrane?

Last Answer : Its called the eukaryotic cell.

In this the DNA is kept in the nucleus which is enclosed by its own membrane?

Description : In this the DNA is kept in the nucleus which is enclosed by its own membrane?

Last Answer : Its called the eukaryotic cell.

Lungs are enclosed in (a) pericardium (b) peritoneum (c) pleural membrane (d) none of these

Description : Lungs are enclosed in (a) pericardium (b) peritoneum (c) pleural membrane (d) none of these

Last Answer : Ans:(c)

Lungs are enclosed in (a) periosteum (b) perichondrium (c) pericardium (d) pleural membrane.

Description : Lungs are enclosed in (a) periosteum (b) perichondrium (c) pericardium (d) pleural membrane.

Last Answer : (d) pleural membrane.

Draw a labelled diagram of the human digestive system. With the help of this diagram, describe the process of digestion of food in man (humans). -Science

Description : Draw a labelled diagram of the human digestive system. With the help of this diagram, describe the process of digestion of food in man (humans). -Science

Last Answer : Digestion of food in human beings: Digestion of food begins in the mouth. The mouth cavity contains teeth, tongue and salivary glands. The teeth cut the food into small pieces, chew ... , proteins and fats. The walls of ileum secrete succus entericus which completes the digestion process.

Besides the liver which is the other adnexal gland of the digestive system that releases substances in the duodenum participating in extracellular digestion?

Description : Besides the liver which is the other adnexal gland of the digestive system that releases substances in the duodenum participating in extracellular digestion?

Last Answer : The other adnexal gland of the digestive system is the pancreas. This organ makes digestive enzymes that digest proteins (proteases), lipids (lipases) and carbohydrates (pancreatic amylases). ... and deoxyribonuclease are also secreted by the pancreas. Digestion System - Image Diversity: pancreas

Besides being fundamental for the activation of the main gastric digestive enzyme how does HCl also directly participate in digestion?

Description : Besides being fundamental for the activation of the main gastric digestive enzyme how does HCl also directly participate in digestion?

Last Answer : With its corrosive effect, HCl also helps the rupture of the adhesion between food particles, facilitating the digestive process.

The digestive system, also known as “systema digestorium”, or gastrointestinal system, is composed of the digestive tube organs plus the digestive adnexal glands. The digestive tube is composed of mouth, pharynx, esophagus, stomach, small intestine (duodenum, jejunum, ileum), large intestine (caecum, colon, rectum) and anus. Digestion System - Image Diversity: human digestive system

Description : The digestive system, also known as systema digestorium , or gastrointestinal system, is composed of the digestive tube organs plus the digestive adnexal glands. The digestive tube is composed of mouth ... (caecum, colon, rectum) and anus. Digestion System - Image Diversity: human digestive system

Last Answer : What are peristaltic movements? What is their role in human digestion?

What is the difference between a complete digestive system and an incomplete digestive system? How are these types of digestive tubes associated or not to extracellular digestion?

Description : What is the difference between a complete digestive system and an incomplete digestive system? How are these types of digestive tubes associated or not to extracellular digestion?

Last Answer : Animals with an incomplete digestive system are those in which the digestive tube has only one opening (cnidarians, platyhelminthes). Animals with a complete digestive system are those ... . In animals with complete digestive systems extracellular digestion within the digestive tube predominates.

What are the types of digestion and of digestive system of platyhelminthes?

Description : What are the types of digestion and of digestive system of platyhelminthes?

Last Answer : Flatworms have incomplete digestive systems and they present extracellular and intracellular complementary digestions. Image Diversity: platyhelminth digestive system

Assertion :- In plant cells cell plate method is found for cytokinesis instead of cell furrow method. Reason :- Plant cells are enclosed by a relative

Description : Assertion :- In plant cells cell plate method is found for cytokinesis instead of cell furrow method. Reason :- Plant cells are enclosed by a relative

Last Answer : Assertion :- In plant cells cell plate method is found for cytokinesis instead of cell furrow method. ... D. If both Assertion & Reason are false.

Digestive enzymes along with their substrates and products. -Biology

Description : Digestive enzymes along with their substrates and products. -Biology

Last Answer : answer:

What is the role of digestive enzymes and the factors that affect their function?

Description : What is the role of digestive enzymes and the factors that affect their function?

Last Answer : Digestive enzymes break down the food we eat into smallerparticles. In the mouth, there is salivary amylase which starts thebreak down of carbohydrates. Next, the stomach has pepsin whichstarts ... they are placed in an unsuitable pH ortemperature and therefore are unable to work.Hailey Amstrong

What are the main digestive enzymes and what factors affect how they function?

Description : What are the main digestive enzymes and what factors affect how they function?

Last Answer : What is the answer ?

The first line of host defense is the barrier presented to the external environment. Which of the following statement(s) is/are true concerning host barriers? a. Sebaceous glands secrete chemical compounds that maintain a relatively high pH, providing effective bacterial stasis b. Within the respiratory tract, ciliary function serves to extrude microorganisms trapped within the mucus secretion layer c. The low pH within the stomach markedly decreases bacterial content of the upper gastrointestinal tract d. Gut peristalsis serves to prevent microbial adherence and invasion

Description : The first line of host defense is the barrier presented to the external environment. Which of the following statement(s) is/are true concerning host barriers? a. Sebaceous glands secrete ... of the upper gastrointestinal tract d. Gut peristalsis serves to prevent microbial adherence and invasion

Last Answer : Answer: b, c, d The skin, mucus membranes, and epithelial layers of various organs of the body constitute effective physical barriers against microbial invasion. In certain portions of the ... very low pH within the stomach and gut peristalsis both serve to prevent microbial adherence and invasion

What is the function of digestive enzymes ? -Biology

Description : What is the function of digestive enzymes ? -Biology

Last Answer : The food we eat is complex in nature, i.e., it contains complex molecules. Digestive enzymes break down these complex molecules into smaller simpler molecules so that they can be absorbed by the walls of the intestine.

State the role of the following in human digestive system : (i) Digestive enzymes (ii) Hydrochloric acid (iii) Villi -Biology

Description : State the role of the following in human digestive system : (i) Digestive enzymes (ii) Hydrochloric acid (iii) Villi -Biology

Last Answer : (i) Digestive enzymes – Foods need to be broken into their small or simpler molecules so that they can be absorbed into the bloodstream. However, the physical breakdown of food is not enough. ... are richly supplied with blood vessel which help to absorb digested food in to the blood stream.

What are enzymes? Name any one enzyme of our digestive system and write its function. -Biology

Description : What are enzymes? Name any one enzyme of our digestive system and write its function. -Biology

Last Answer : Enzymes are biological catalysts. Catalysts are proteins that increase the rate of chemical reactions without being used up. For example: Amylase catalyses the breakdown of starch into sugars in the mouth and small intestine

why do digestive enzymes not work on all groups of food?

Description : why do digestive enzymes not work on all groups of food?

Last Answer : takes place in the mouth

What kind of enzymes are in digestive juices ?

Description : What kind of enzymes are in digestive juices ?

Last Answer : Digestive juice contains an enzyme called pepsin.

Assertion: Bile is not a true digestive juice Reason: Bile lacks digestive enzymes.

Description : Assertion: Bile is not a true digestive juice Reason: Bile lacks digestive enzymes.

Last Answer : Assertion: Bile is not a true digestive juice Reason: Bile lacks digestive enzymes. A. If both Assertion ... D. If both Assertion & Reason are false.

Digestive enzymes are

Description : Digestive enzymes are

Last Answer : Digestive enzymes are A. hydrolase B. oxido-reductase C. transferase D. none of these