Sci-Five | The Hindu Science Quiz: On astronauts in space
Visitors pose for images with replicas of Chinese space fits throughout an exhibition about China’s space program in Beijing, Thursday, Dec. 28, 2023.
START THE QUIZ
1 / 5 |
The feeling of weightlessness that astronauts expertise is the absence of what pressure?
- Weight of their physique
- Gravitational pressure
- Magnetic pressure
- Centripetal pressure
Astronauts orbiting in space really feel a way of weightlessness as a result of there is no such thing as a gravitational pressure in space pulling upon their our bodies.
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2 / 5 |
Astronauts typically get confused with the path of up and down. Which system in the physique is chargeable for this?
- Endocrine system
- Spinal system
- Vestibular system
- Lymphatic system
The vestibular system, in vertebrates, is a sensory system that creates a way of steadiness and spatial orientation for the aim of coordinating motion with steadiness. Together with the cochlea, part of the auditory system, it constitutes the labyrinth of the inside ear in most mammals.
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3 / 5 |
What sort of bodily modifications happen to astronauts when they’re in space?
- Loss of calcium
- Increase in peak
- Anaemia
- All of the above
There is a progressive lack of physique weight and bone calcium throughout space flights. In outer space, bodily fluids are redistributed, with much less in the decrease extremities and extra in the higher physique; peak will increase; physique mass often, however not all the time, decreases with a lack of muscular tissue; the veins and arteries of the legs turn into weaker; and anaemia happens, accompanied by a major discount in blood rely.
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4 / 5 |
Which astronaut was a part of the analysis that discovered that being in outer space modified gene expression of people?
- Scott Kelly
- John Kelly
- Robert Kelly
- Peter Kelly
Samples taken earlier than, throughout, and after Scott Kelly’s 340 days in space revealed some modifications in gene expression (the method by which our DNA instructs physique cells to make invaluable parts like proteins, that are used to construct and restore tissue).
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5 / 5 |
Which astronaut has stayed the longest in space?
- John Glenn
- Sally Ride
- Yuri Gagarin
- Valeri Polyakov
The report for the longest spaceflight total is held by Russian cosmonaut Valeri Polyakov — 437 days in the mid-Nineties.
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