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प्रश्न
Name the following :-
The cell organelle where photosynthesis occurs
उत्तर
Chloroplasts are plant cell organelles that use the photosynthetic process to transform light energy into relatively stable chemical energy.
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संबंधित प्रश्न
Explain Pulse
Give appropriate biological or technical terms for the following :
The complex consisting of a DNA strand and a core of histones
Given below is certain structure, write the term for the functional activity.
Erythrocytes and …………………………………
Name the following:
Any one vein which starts from an organ and ends in another organ besides the heart
Given below is a certain structure, write its chief functional activity.
Lymphocytes - ______.
Give reason for the following:
The arteries are deep seated in the body
Find out my partner.
| Group 'A' | Group 'B' |
| 1. Heart beats | a. 350 ml |
| 2. RBC | b. 7.4 |
| 3. WBC | c. 37∘C |
| 4. Blood donation | d. 72 |
| 5. Normal body Temperature | e. 50-60 lakh/mm3 |
| 6. pH of oxygenated blood | f. 5000-6000 per mm3 |
Explain the following:
Why is the closed circulatory system more efficient than the open system?
Match the statements in Column A with those in Column B
| Column A | Column B | ||
| 1 | Heart | a | Movement of materials |
| 2 | Food and oxygen | b | Channels for transport in man |
| 3 | Carrier of oxygen | c | A living pump |
| 4 | Circulation | d | Materials needed by every living being |
| 5 | Arteries and veins | e | Red blood cells |
Blood is produced in the bone marrow.
