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What is nutrition in amoeba

Posted by Shashank Dhakre 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 6 months ago

The mode of nutrition in Amoeba is holozoic and various steps involved in the process of nutrition are:

Ingestion: Amoeba ingests food with the help of its finger-like extensions, called pseudopodia, when a food particle approaches Amoeba it forms pseudopodia around it and forms a food vacuole inside the Amoeba
Digestion: Various enzymes from the cytoplasm enter into the food vacuole and break them down into simple soluble molecules
Absorption: The simple soluble food is absorbed by cytoplasm of Amoeba from food vacuoles through the process of diffusion
Assimilation: Amoeba cell obtains energy from the absorbed food through respiration and this energy is utilized by Amoeba for its growth and repair of the body
Egestion: When a considerable amount of undigested food gets collected inside Amoeba, its cell membrane ruptures and throws out the undigested food.

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Rangila Raja Guddu 5 years, 6 months ago

Pseudopodia

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Which reaction followed by two combination reaction are involved in white wash of walls ?

Posted by Anita Sethi 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Rangila Raja Guddu 5 years, 6 months ago

Decomposition reaction

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Write 2 rules Of the new cartesian Sign convention for spherical mirrors

Posted by Yuvraj Gupta 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 6 months ago

According to the New Cartesian Sign Convention, the pole (P) of the mirror is taken as the origin. The principal axis of the mirror is taken as the x-axis (X’X) of the coordinate system. The conventions are as follows:

(i) The object is always placed to the left of the mirror. This implies that the light from the object falls on the mirror from the left-hand side.

(ii) All distances parallel to the principal axis are measured from the pole of the mirror.

(iii) All the distances measured to the right of the origin (along + x-axis) are taken as positive while those measured to the left of the origin (along – x-axis) are taken as negative.

(iv) Distances measured perpendicular to and above the principal axis (along + y-axis) are taken as positive.

(v) Distances measured perpendicular to and below the principal axis (along –y-axis) are taken as negative.

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What is electrovalent bond

Posted by Priya Behera 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Priya Behera 5 years, 6 months ago

Thank you

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Yogita Ingle 5 years, 6 months ago

Electrovalent bond is also called as ionic bond
In ionic bonding, electrons are completely transferred from one atom to another. In the process of either losing or gaining negatively charged electrons, the reacting atoms form ions. The oppositely charged ions are attracted to each other by electrostatic forces, which are the basis of the ionic bond.

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Oxygenated blood reaches the heart by

Posted by Lovepreet Singh 5 years, 6 months ago

CBSE > Class 10 > Science

5 answers

Manbir Kaur 5 years, 6 months ago

Pulmonary vein

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Rangila Raja Guddu 5 years, 6 months ago

Blood vessels

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Shreya Wakhare 5 years, 6 months ago

Through pulmonary vein.

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Nikunj Maheshwari 5 years, 6 months ago

Lungs

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Shreya Shrivas 5 years, 6 months ago

Pulmonary vein

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What is the difference between arteries and veins

Posted by Kashish Thakur 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 6 months ago

Arteries	Veins
Carry blood away from the heart	Carry blood towards the heart
Carry oxygenated blood	Carry deoxygenated blood
Red in colour due to oxygenated blood	Blue in colour due to deoxygenated blood
Located deep in the body	Located close to the skin

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Abhijeet Kumar Singh 5 years, 6 months ago

Artries have oxiginated blood amd vien have dioxiginated blood

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Are the lips wastegial organ or if they have any use .

Posted by Anushka ???? 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Rajan Kumar Pasi 5 years, 6 months ago

Who said Lips are a wastegial organ. In human body , nothing is wastegial organ.
Lips have many purpose:
1. During Food intake
2. During articulation or speaking
3. A tactile organ
4. An erogenous zone.

Clinical significance

As an organ of the body, the lip can be a focus of disease or show symptoms of a disease:

One of the most frequent changes of the lips is a blue coloring due to <a href="https://en.wikipedia.org/wiki/Cyanosis" title="Cyanosis">cyanosis</a>; the blood contains less oxygen, and thus has a dark red to blue color, which shows through the thin skin. Cyanosis is the reason why corpses sometimes have blue lips. In cold weather cyanosis can appear, so especially in the winter, blue lips may not be an uncommon sight.
Inflammation of the lips is termed <a href="https://en.wikipedia.org/wiki/Cheilitis" title="Cheilitis">cheilitis</a>. This can be in several forms such as <a href="https://en.wikipedia.org/wiki/Chapped_lips" title="Chapped lips">chapped lips</a> (dry, peeling lips), <a href="https://en.wikipedia.org/wiki/Angular_cheilitis" title="Angular cheilitis">angular cheilitis</a> (inflammation of the corners of the mouth), <a href="https://en.wikipedia.org/wiki/Herpes_labialis" title="Herpes labialis">herpes labialis</a> (cold sore, a form of <a href="https://en.wikipedia.org/wiki/Herpes_simplex" title="Herpes simplex">herpes simplex</a>) and <a href="https://en.wikipedia.org/wiki/Actinic_cheilitis" title="Actinic cheilitis">actinic cheilitis</a> (chronically sun damaged lips).

A child with <a href="https://en.wikipedia.org/wiki/Cleft_lip_and_palate#Cleft_lip" title="Cleft lip and palate">cleft lip</a>

<a href="https://en.wikipedia.org/wiki/Cleft_lip_and_palate#Cleft_lip" title="Cleft lip and palate">Cleft lip</a> is a type of <a href="https://en.wikipedia.org/wiki/Birth_defect" title="Birth defect">birth defect</a> that can be successfully treated with surgery.
<a href="https://en.wikipedia.org/wiki/Carcinoma" title="Carcinoma">Carcinoma</a> (a malignant cancer that arises from epithelial cells) at the lips, is caused predominantly by using tobacco and overexposure of sunlight. Alcohol appears to increase the carcinoma risk associated with tobacco use. It is most often a diffuse and often hyperkeratinised lesion, occasionally has the form of nodules and grows infiltratively, and can also be a combination of the two types. It more often occurs at the lower lip, where it is also much more malign. The lower lip carcinoma is exclusively <a href="https://en.wikipedia.org/wiki/Planocellular_carcinoma" title="Planocellular carcinoma">planocellular carcinoma</a>, whereas at the upper lip, it can also be <a href="https://en.wikipedia.org/wiki/Basocellular_carcinoma" title="Basocellular carcinoma">basocellular carcinoma</a>.

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What is emlufication

Posted by Priya Behera 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Manbir Kaur 5 years, 6 months ago

Breakdown of larger globules to smaller globules

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Kashish Thakur 5 years, 6 months ago

The breakdown of fat globules into tiny droplets is known as emulsification☺️

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In the give figure, calculate the resistance between the points M and N .

Posted by Bharam Singh Saini 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Rajan Kumar Pasi 5 years, 6 months ago

where is the figure?

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ANSWER

How much heat to melt of tungeston

Posted by Rahul Singh 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Sk Singh 5 years, 6 months ago

3280°C

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How is small intestine designed for the digestion of food?

Posted by Tanisha Dalmia 5 years, 6 months ago

CBSE > Class 10 > Science

3 answers

Manbir Kaur 5 years, 6 months ago

The small intestine has million of finger like projections called villi . They increase the surface area for absorption of digested food.

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Kashish Thakur 5 years, 6 months ago

The small intestine has million of finger like projections called villi. These villi increase the surface area for more efficient food absorption . With these villis,many blood vessels are presentthat absorb the digested food and carry it to the blood stream.☺️

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Rajan Kumar Pasi 5 years, 6 months ago

Learn about functions of Small intestine and its constituting parts.

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world mein kitne pratishat snack jaharile hai

Posted by Mohit Mohit 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Ishita Garg 5 years, 6 months ago

DON'T KNOW

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Ishita Garg 5 years, 6 months ago

0Thank You

ANSWER

Why photosynthesis is a type of redox reaction

Posted by Akhilesh Singh 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Ankit Kumar 5 years, 6 months ago

Photosynthesis is a type of redox reaction because oxidation and reduction both are takes place in photosynthesis

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Yogita Ingle 5 years, 6 months ago

Redox reaction (oxidation-reduction reactions) are marked by the transfer of electrons. During oxidation, a substance tends to lose its electrons whereas, during reduction, a substance tends to gain electrons.
Photosynthesis is a process in which plants containing chlorophyll convert the carbon dioxide into sugars in the presence of sunlight by a set of redox reactions.
Calvin cycle represents a set of reactions which are used to remove electrons from water which are then used to turn carbon dioxide into organic compounds.
Redox reactions during photosynthesis :

It involves two major steps -

The first step is the oxidation in oxygen in water molecule in the presence of light

2H₂O → O₂ + 4H⁺
The second step is the reduction step where hydrogen ions reduce the carbon in carbondioxide
4H⁺ + CO₂ → (CH₂O) + H₂0
The net reaction is
CO₂ + H₂O → (CH₂O) + H₂O

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For the figure show below find the suppy current ..

Posted by Syeda Sameen 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Rajan Kumar Pasi 5 years, 6 months ago

Where is the figure?

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What do u mean by diopter

Posted by Anushka ???? 5 years, 6 months ago

CBSE > Class 10 > Science

4 answers

Rajan Kumar Pasi 5 years, 6 months ago

It it the last topic of the Eye chapter. Dont you read this before?

1Thank You

Yogita Ingle 5 years, 6 months ago

The SI unit of power of lens is dioptre which is denoted by the letter D. 1 dioptre is defined as the power of a lens of focal length 1 metre.

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Aishani Vyas 5 years, 6 months ago

Dioptre is the SI unit of power. Power is the reciprocal of focal length . Power=1/Focal length . 1 dioptre = 1 / 1m.

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Shreya Wakhare 5 years, 6 months ago

Curious about this,???...

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What is sexual reproduction answer in brief

Posted by Souptick Ghosh 5 years, 6 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What is transparent object

Posted by Abhinav Pandey 5 years, 6 months ago

CBSE > Class 10 > Science

4 answers

Roshni . 5 years, 6 months ago

Materials which allow light to completely pass through them. Ex-Glass.

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Anushka ???? 5 years, 6 months ago

From whivh light can pass easily

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Beacon Pratap 5 years, 6 months ago

An object which allows light to refract through it

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Yogita Ingle 5 years, 6 months ago

Materials which allow light to pass through them completely are called Transparent objects. Objects on the other side of Transparent objects can be seen clearly. Eg: Glass, water and air.

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Michael Lotito is one who had created a world record of eating an aeroplane of metal in two years. H e could eat anything. Hwo did he digest anything like metals.

Posted by Pavan Kumar Raju Kumar 5 years, 6 months ago

CBSE > Class 10 > Science

0 answers

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What is sensory neurone?

Posted by Shreya Wakhare 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Aayush Singh 5 years, 6 months ago

Hmmm

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Lucifer??Morningstar?? . 5 years, 6 months ago

Sensory neurons are nerve cells within the nervous system responsible for converting external stimuli from the organism's environment into internal electrical impulses.

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State the function of epiglottis☺️☺️☺️☺️

Posted by ? Ishika ?? 5 years, 6 months ago

CBSE > Class 10 > Science

4 answers

Manbir Kaur 5 years, 6 months ago

It's function is to cover the wind pipe when we eat food so that we don't choke our food

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꧁༒RคМคห༒꧂ . 5 years, 6 months ago

Welcome Ishika

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? Ishika ?? 5 years, 6 months ago

Thank you....???

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꧁༒RคМคห༒꧂ . 5 years, 6 months ago

The function of epiglottis is to seal pack the wind pipe while inhaling so that the food does not enter the windpipe mistakenly.

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Ray diagram of formation of image by convex mirror, concave mirror, convex lens, concave lens. Numerical problem based on concave and convex lens

Posted by Pratham Mahawar 5 years, 6 months ago

CBSE > Class 10 > Science

0 answers

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??Describe the methods of excretion in plants ??

Posted by ? Ishika ?? 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Mehak Maurya 5 years, 6 months ago

Plant excrete its waaste through stomata that present on leaves.

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꧁༒RคМคห༒꧂ . 5 years, 6 months ago

Plants excrete through stomatal pores on their leaves. The major metabolic reactions occurring in a plant that produce this waste are cellular respiration and photosynthesis. These processes are responsible for most of the gaseous waste produced by a plant.

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Two points having a potential difference of 10v are connected to conductor of zero resistance after which their potential difference become 25v what was the initial potential differnce of both

Posted by Mridul Mantri 5 years, 6 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Uses of carbon-dating.

Posted by Lucifer??Morningstar?? . 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

? Ishika ?? 5 years, 6 months ago

It can be used for dating things like bone, wood, plant, etc..

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Rohit Gahlot 5 years, 6 months ago

taan

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Definition of carbon-dating.

Posted by Lucifer??Morningstar?? . 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Ìñòçèñţ Ķìñģ ??? 5 years, 6 months ago

Carbon dating (Radiocarbon dating) is a method used date materials that once exchanced Carbon dioxide with the atmosphere.

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? Ishika ?? 5 years, 6 months ago

Carbon dating (Radiocarbon dating) is a method used to date materials that once exchanged carbon dioxide with the atmosphere.

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Define 1diopotre

Posted by Bus Detailing World Saksham 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Lucifer??Morningstar?? . 5 years, 6 months ago

1 dioptre is defined as the power of a lens of focal length 1 metre. It is the SI unit of power of lens.

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What is double displacement reaction? Write also a example?

Posted by Gautam Kumar 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Sia ? 4 years, 7 months ago

Double displacement reactions generally take place in aqueous solutions in which the ions precipitate and there is an exchange of ions. For example, on mixing a solution of barium chloride with sodium sulphate, a white precipitate of barium sulphate is immediately formed. These reactions are ionic in nature.

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Describe about respiration

Posted by Anushka ???? 5 years, 6 months ago

CBSE > Class 10 > Science

3 answers

Shreya Wakhare 5 years, 6 months ago

In taking of oxygen required for our body.

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Ìñòçèñţ Ķìñģ ??? 5 years, 6 months ago

All living things get the energy they need to live from a chemical reaction called respiration. First we will se how respiration works, and then look at how plants use respiration in combination with photosynthesis

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Gautam Kumar 5 years, 6 months ago

a process by which living things produce energy from food. Respiration usually needs oxygen

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What is process of metal and non metal

Posted by Ujala Pandey 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Gautam Kumar 5 years, 6 months ago

Nonmetal is a substance that do not exhibit properties of metals such as hardness, luster, malleability ,ductility and the ability to conduct electricity. Metal is a solid material which conduct heat & electricity ,hard, shiny, malleable, fusible, and ductile.

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Divya Banjara 5 years, 6 months ago

Means

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Why sky is blue say briefly pls?

Posted by Hariharasudhan Sivaumar 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Ìñòçèñţ Ķìñģ ??? 5 years, 6 months ago

The scattering of sunlight due to the air molecules in the atmosphere causes the sky to appear blue. Shorter wavelenght (Blue colour)is scattered more compared to longer wavelenght (Red colour) .The scattered blue light enters our eyes . Thus sky appears blue.

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