मराठी

State whether the following statement is true or false: Energy can be produced in cells without oxygen. - Science

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प्रश्न

State whether the following statement is true or false:

Energy can be produced in cells without oxygen.

पर्याय

  • True

  • False

MCQ
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उत्तर

True

Energy can be produced in the cells even without oxygen.

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पाठ 1: Life Processes - Exercise 2 [पृष्ठ ४७]

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लखमीर सिंह Biology (Science) [English] Class 10
पाठ 1 Life Processes
Exercise 2 | Q 25.2 | पृष्ठ ४७

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

The trachea divides into tow tubes at its lower end. What is the name of these tubes?


Where in the lungs does gas exchange take place?


What organs are attached to the two bronchi?


Describe the process of respiration in the following part of a plant:

Root


Describe the exchange of gases which takes place in the leaves of a plant

(a) during daytime, and (b) at night.


The breathing and respiration in woody stem of a plant takes place through:


One of the following organisms does not depend on the simple diffusion of gases for breathing and respiration. This organism is:


A, B and C are three living organisms. The organism A is a unicellullar fungus which can live without air. It is used in the commercial production of an organic compound P from molasses. The organism B is a unicellular animal which lives in water and feeds and moves by using pseudopodia. It breathes through an organelle Q. The organism C is a tiny animal which acts as a carrier of malarial parasite. It breathes and respires through a kind of tiny holes R and air-tubes S in its body.

(a) What are organisms (i) A (ii) B, and (iii) C?
(b) Name (i) P (ii) Q (iii) R, and (iv) S.
(c) Which organism/organisms undergo aerobic respiration?
(d) Which organism/organisms undergo anaerobic respiration?


Consider the following chemical reactions which take place in different organisms/tissues under various conditions:

(i) Glucose →   Respiration    ">Ethanol + Carbon dioxide + Energy
(ii) Glucose→   Respiration    ">Carbon dioxide + Water + Energy
(iii) Glucose →   Respiration    "> Lactic acid + Energy

(a) Name one organism which respires according to equation (i) above.
(b) Name one organism which respires according to equation (ii) above.
(c) When and where does respiration represented by equation (iii) above take place?
(d) Which equation/equations represent aerobic respiration?
(e) Which equation/equations represent anaerobic respiration?
(f) Which of the above reactions produces the maximum amount of energy?


An organism X having breathing organs A lives on land. When organism X goes underwater, it cannot survive for a long time unless carrying an oxygen cylinder. On the other hand, the organism Y having breathing organs B always lives in water and if taken out of the water, it dies after a short while. A third organism Z having breathing organs C and D which lives on the banks of ponds, lakes, and rivers can survive on land as well as in water equally well.

(a) What could organism X be? Name the breathing organs A.

(b) What could organism Y be? Name the breathing organs B.

(c) What could organism Z be? Name the breathing organs C and D.

(d) Out of X, Y, and Z, which organism is (i) amphibian, (ii) aquatic, and (iii)

terrestrial?


What is the name of tissues which transport:

water and minerals in a plant?


Given below is an example of a certain structure and its special functional activity: 

"Kidney and excretion".

Fill in the blanks on a similar pattern.

Pleura and _____________.


Given below is an example of certain structure and its special functional activity: 

"Kidney and excretion".

Fill in the blanks on a similar pattern.

'C' shaped cartilage rings and ____________.


Given below is an overall chemical reaction of a certain process:

C6H12O6 →LacticAcid+2ATP+Heat energy

Name the process.


Given below is an overall chemical reaction of a certain process:

C6H12O6→LacticAcid+2ATP+Heat enengy

Name one tissue in which this reaction occur.


Rewrite the following statement by selecting the correct option. 
During respiration, ____________ gas is given out.


Answer the following question.
A gas is released during photosynthesis. Name the gas and also state the way by which the gas is evolved.


What is common between extensive network of blood vessels around walls of alveoli and in glomerulus of nephron?


Breathing is a process that

  1. provides O2 to the body.
  2. breaks down food to release energy.
  3. helps the body to get rid of CO2.
  4. produces water in the cells.

Which of the following gives the correct combination of functions of breathing?


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