Physical Health and Hygiene — Biology STD 10 — Question

Distinguish between the following:
Hill reaction and NADP reduction in chloroplast.

Explain how the rate of transpiration is affected on:
a windy day

Differentiate Between:
Light reaction and Dark reaction.

By closing the eyes and gently pressing them by your palms, you may see some specks of brilliant light. How do you get this sensation while there is no light entering your eyes?

Differentiate
Uterus and Urethra.

In a school experiment, students observed the growth patterns of bean plants placed near a window. They noticed that the plants bent towards the light coming through the window. Additionally, they conducted another experiment by placing the plants horizontally. After a few days, they ohserved that the roots grew downwards while the shoots grew upwards, demonstrating different types of tropic movements. Which types of tropic movements were observed in the bean plants during the experinents? Explain them,
Phototropism and geotropism are the tropic movements, noticed during the experiment.

Give suitable explanation for the following:
Perspiration and transpiration help to cool the body temperature of the organism.

Describe briefly the ways how a mammalian embryo is nourished

Differentiate between following pair with reference to the aspect in bracket.
cerebrum and spinal cord (arrangement of cytons and exons of neurons).

Give some adaptations in green leaf photosynthesis.