Why Amoeba and other protozoans do not have proper respiratory system?

Why Amoeba and other protozoans do not have proper respiratory system? 
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1 Answer

Answer :

In small aquatic animals (unicellular) oxygen from water diffuses directly into the cell surface. This is the simplest way of respiration therefore they do not have proper respiratory system.  
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Related questions

Ciliates differ from all other protozoans in (a) using flagella for locomotion (b) having a contractile vacuole for removing excess water (c) using pseudopodia for capturing prey (d) having two types of nucle

Description : Ciliates differ from all other protozoans in (a) using flagella for locomotion (b) having a contractile vacuole for removing excess water (c) using pseudopodia for capturing prey (d) having two types of nucle

Last Answer : d) having two types of nuclei.

Ciliates differ from all other protozoans in (1) using flagella for locomotion (2) having a contractile vacuole for removing excess water (3) using pseudopodia for capturing prey (4) having two types of nuclei

Description : Ciliates differ from all other protozoans in (1) using flagella for locomotion (2) having a contractile vacuole for removing excess water (3) using pseudopodia for capturing prey (4) having two types of nuclei

Last Answer : (4) having two types of nuclei

Protozoans ingest food through?

Description : Protozoans ingest food through?

Last Answer : cytostome

What Protozoans have been traditionally grouped according to their?

Description : What Protozoans have been traditionally grouped according to their?

Last Answer : What is the answer ?

How are protozoans differentiated by means of their locomotory organelles?

Description : How are protozoans differentiated by means of their locomotory organelles?

Last Answer : Need answer

What are the four groups of protozoans?

Description : What are the four groups of protozoans?

Last Answer : The four main groups of protozoans are the sarcodines (that form pseudopods, like amoebae), the mastigophores (flagellated, like the trypanosome that causes Chagas' disease), the ... forming, like plasmodia). Protists Review - Image Diversity: sarcodines mastigophores ciliated protozoans sporozoans

Do protozoans have sexual or asexual reproduction?

Description : Do protozoans have sexual or asexual reproduction?

Last Answer : In protozoans reproduction is sexual or asexual. The most frequent form of sexual reproduction is binary division, or scissiparity, in which the cell divides itself by mitosis originating two ... mosquito, the definitive host, and the zygote undergoes mitosis (sporogony) creating many sporozoites.

Are protozoans presenting contractile, or pulsatile, vacuoles easily found in fresh or in salt water?

Description : Are protozoans presenting contractile, or pulsatile, vacuoles easily found in fresh or in salt water?

Last Answer : Fresh water is the less concentrated of solutes than sea water and it (fresh water) tends to be less concentrated than the intracellular environment making cells to swell. Sea water, on the other ... provided by the vacuoles, protozoans of fresh water would absorb too much water and would die.

How is digestion performed in protozoans?

Description : How is digestion performed in protozoans?

Last Answer : Digestion in protozoans is intracellular digestion: organic material is internalized and degraded inside the cell. Protozoans get food by phagocytosis and then the food is digested when phagosomes fuse ... at specialized regions of the plasma membrane, the cytostom and the cytopyge, respectively.

What do protozoans “eat”? Do they move in search for food?

Description : What do protozoans “eat”? Do they move in search for food?

Last Answer : Protozoans are heterotroph beings, i.e., they do not make their own food and thus they need to search for it in the environment. Protozans have developed several locomotion mechanisms and they actively move towards food.

Do protozoans have a cellular nucleus?

Description : Do protozoans have a cellular nucleus?

Last Answer : All protozoans, as eukaryotes, have nucleus. Some species, like the paramecium, have two nuclei: the macronucleus and the micronucleus. Protists Review - Image Diversity: paramecium

What are the characteristics of protozoans that make them resemble animals?

Description : What are the characteristics of protozoans that make them resemble animals?

Last Answer : Protozoans are unicellular beings with some similar characteristics to animal cells. In comparison to pluricellular organisms protozoans are more proximal to the animal kingdom than to plants: ... The evolutionary hypothesis that animal cells have come from differentiation of protozoans is strong.

What is the fundamental difference between protozoans and algae?

Description : What is the fundamental difference between protozoans and algae?

Last Answer : The basic difference between protozoans and algae is the fact that protozoans are heterotrophs while algae are photosynthetic autotrophs.

During the formation of bread it becomes porous due to release of CO2 by the action of (a) yeast (b) bacteria (c) virus (d) protozoans.

Description : During the formation of bread it becomes porous due to release of CO2 by the action of (a) yeast (b) bacteria (c) virus (d) protozoans.

Last Answer : (a) yeast

acob and Monod studied lactose metabolism in E. coli and proposed operon concept. Operon concept is applicable for (a) all prokaryotes (b) all prokaryotes and some eukaryotes (c) all prokaryotes and all eukaryotes (d) all prokaryotes and some protozoans

Description : acob and Monod studied lactose metabolism in E. coli and proposed operon concept. Operon concept is applicable for (a) all prokaryotes (b) all prokaryotes and some eukaryotes (c) all prokaryotes and all eukaryotes (d) all prokaryotes and some protozoans

Last Answer : (c) all prokaryotes and all eukaryotes

Uricotelism is found in (a) mammals and birds (b) fish and fresh water protozoans (c) birds, land reptiles and insects (d) frogs and toads.

Description : Uricotelism is found in (a) mammals and birds (b) fish and fresh water protozoans (c) birds, land reptiles and insects (d) frogs and toads.

Last Answer : (c) birds, land reptiles and insects

Protozoans living within the digestive tract of a termite and digesting the cellulose the termite takes in is an example what?

Description : Protozoans living within the digestive tract of a termite and digesting the cellulose the termite takes in is an example what?

Last Answer : ANSWER: MUTUALISM

(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.

Which of the following animals does not have nervous system? (1) Leech (2) Tapeworm (3) Amoeba (4) Snail

Description : Which of the following animals does not have nervous system? (1) Leech (2) Tapeworm (3) Amoeba (4) Snail

Last Answer : (3) Amoeba Explanation: The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like ... communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.

Which of the following animals does not have nervous system? (1) Leech (2) Tapeworm (3) Amoeba (4) Snail

Description : Which of the following animals does not have nervous system? (1) Leech (2) Tapeworm (3) Amoeba (4) Snail

Last Answer : Amoeba

What is the mode of nutrition in Amoeba known as ? -SST 10th

Description : What is the mode of nutrition in Amoeba known as ? -SST 10th

Last Answer : The mode of nutrition in Amoeba is Holozoic.

Describe the process of nutrition in Draw labelled diagrams to show the various steps in the nutrition in Amoeba. -Science

Description : Describe the process of nutrition in Draw labelled diagrams to show the various steps in the nutrition in Amoeba. -Science

Last Answer : Nutrition in amoeba: Nutrition in amoeba involves the following steps (i) Ingestion ? Amoeba has no mouth for ingestion of food. It ingests the food by using its pseudopodia. The food is engulfed ... cell and the cell membrane ruptures. Through this, the undigested food is thrown out of the body.

From which part of the body, undigested food is egested in Amoeba ? -Science

Description : From which part of the body, undigested food is egested in Amoeba ? -Science

Last Answer : Amoeba has no fixed place for egestion. The undigested food gets collected inside amoeba, then its cell membrane suddenly ruptures and the undigested food is thrown out of the body of amoeba.

How does Amoeba engulf the food particle ? -Science

Description : How does Amoeba engulf the food particle ? -Science

Last Answer : Amoeba engulfs the food particles with the help of finger like projections called pseudopodia.

Explain the process of nutrition in Amoeba. -Biology

Description : Explain the process of nutrition in Amoeba. -Biology

Last Answer : Amoeba is an important protozoa found in fresh water. It feeds on microscopic plants and animals present in water. The mode of nutrition in amoeba is Holozoic. And the process of obtaining food ... rupturing cell membrane. The process of removal of undigested food from the body is called egestion.

Amoeba is an example of (a) Embedded OS (b) Distributed OS (c) Multi_User OS (d) Batch Processing OS -Technology

Description : Amoeba is an example of (a) Embedded OS (b) Distributed OS (c) Multi_User OS (d) Batch Processing OS -Technology

Last Answer : (b) Amoeba is an example of Distributed OS.

Inherent characteristics of amoeba and yeast that enable them to reproduce asexually? -Biology

Description : Inherent characteristics of amoeba and yeast that enable them to reproduce asexually? -Biology

Last Answer : answer:

Inherent characteristics of amoeba and yeast that enable them to reproduce asexually? -Biology

Description : Inherent characteristics of amoeba and yeast that enable them to reproduce asexually? -Biology

Last Answer : answer:

How many rocks (cells) are there in amoeba? -General Knowledge

Description : How many rocks (cells) are there in amoeba? -General Knowledge

Last Answer : Like bacteria, amoebas have just one cell. But there the similarity ends.

How many rocks (cells) are there in amoeba? -General Knowledge

Description : How many rocks (cells) are there in amoeba? -General Knowledge

Last Answer : Like bacteria, amoebas have just one cell. But there the similarity ends.

How many rocks (cells) are there in amoeba? -General Knowledge

Description : How many rocks (cells) are there in amoeba? -General Knowledge

Last Answer : Like bacteria, amoebas have just one cell.

What is amoeba ?

Description : What is amoeba ?

Last Answer : Amoeba is a member of the state of Protesta. Amoeba is a unicellular animal. Their body is small. The finger-shaped projector from their body is called short-legged. Amoeba feeds with its help. Their body has water cavity , food cavity and contraction cavity.

Why is amoeba division called direct cell division ?

Description : Why is amoeba division called direct cell division ?

Last Answer : Amoeba cell division is amitosis cell division. Amitosis cell division is called direct cell division. This is because in amytosis cell division, the nucleus takes the shape of a dumbbell and shrinks ... cell are directly divided into two offspring cells , hence it is called direct cell division.

How many types of holes are there in the body of amoeba ?

Description : How many types of holes are there in the body of amoeba ?

Last Answer : There are 3 types of cavities in the body of amoeba.

What is Amoeba ?

Description : What is Amoeba ?

Last Answer : Amoeba (English: Amoeba) is a genus of the family Amoebidae of the Amoeboa episode. [

Amoeba of which state ?

Last Answer : Amoeba belongs to the state of Protista.

In Protozoa like Amoeba and Paramecium, an organelle is found for osmoregulation which is

Description : In Protozoa like Amoeba and Paramecium, an organelle is found for osmoregulation which is

Last Answer : In Protozoa like Amoeba and Paramecium, an organelle is found for osmoregulation which is A. ... B. Mitochondria C. Nucleus D. Food vacuole

$ Amoeba is a type of sporozoan. ! Sporozonas have two contractile vacules.

Description : $ Amoeba is a type of sporozoan. ! Sporozonas have two contractile vacules.

Last Answer : $ Amoeba is a type of sporozoan. ! Sporozonas have two contractile vacules. A. If both As and R are ... is wrong D. If both As and R are wrong.

What type of movement is seen in Amoeba?

Description : What type of movement is seen in Amoeba?

Last Answer : What type of movement is seen in Amoeba?

Pseudopodia of Amoeba are similar to :

Description : Pseudopodia of Amoeba are similar to :

Last Answer : Pseudopodia of Amoeba are similar to : A. Legs of cockroach B. Teeth in rabbit C. Spicules of Neucosolenia D. Suckers of Taenia

Cyclosis is a characteristic of plant cells such as Amoeba and vertebrate WBCs. This movement is due to

Description : Cyclosis is a characteristic of plant cells such as Amoeba and vertebrate WBCs. This movement is due to

Last Answer : Cyclosis is a characteristic of plant cells such as Amoeba and vertebrate WBCs. This movement is ... streaming C. Beating of cilia D. Podia formation

Mammalian kidney resemble contractile vacuole of Amoeba in excretion of

Description : Mammalian kidney resemble contractile vacuole of Amoeba in excretion of

Last Answer : Mammalian kidney resemble contractile vacuole of Amoeba in excretion of A. Glucose B. Excess water C. Urea D. Ammoriia

Illustrate the following with the help of suitable diagrams. a) Binary fission in Amoeba b) Binary fission in Leishmania

Description : Illustrate the following with the help of suitable diagrams. a) Binary fission in Amoeba b) Binary fission in Leishmania

Last Answer : Illustrate the following with the help of suitable diagrams. a) Binary fission in Amoeba b) Binary fission in Leishmania

Mention the four events that occur during binary fission in Amoeba. 

Description : Mention the four events that occur during binary fission in Amoeba. 

Last Answer : Mention the four events that occur during binary fission in Amoeba.

How do amoeba drink?

Description : How do amoeba drink?

Last Answer : they absorb it through there skin

What is different between an elephant and an amoeba?

Description : What is different between an elephant and an amoeba?

Last Answer : Elephant has shape but amoeba has no shape

What advantage does an amoeba cell have over a lizard cell in relation to their levels of organization?

Description : What advantage does an amoeba cell have over a lizard cell in relation to their levels of organization?

Last Answer : Two advantage that amoeba has over lizard in relation to their level of organization

Why can amoeba get so large?

Description : Why can amoeba get so large?

Last Answer : Well, the amoeba is a very complicated type of cell life form.An Amoeba does not go through a well planned diet, so they get muchlarger then other cells. Amoeba's basically eat anything they canfind or die trying.

What is amoeba cell organism?

Description : What is amoeba cell organism?

Last Answer : Feel Free to Answer

Are amoeba single celled or multi celled?

Description : Are amoeba single celled or multi celled?

Last Answer : What is the answer ?