Question

1. Name the natural polymer made up of beta glucose units.

2. What is the product formed when sulphur burns in the air? Also mention the nature of

the product formed.

3. Which part of the cell controls the movement of substances in and out of the cell?

4. Bacterial cells are different from animal and plant cells. Give reason.

5. In which female reproductive organ does the embryo get embedded?

6. What is the term used for secretion of endocrine glands responsible for changes taking

place in the body?

7. Which mineral is required for metamorphosis in frog?

8. What do you understand by the term autosomes?

9. How is pitch of sound related to its frequency?

OR

Identify high pitch sound and low pitch sound from the given figure.




pls answer the all question​

Answer 1

Answer:

1. Cellulose
2. Sulfur, sulfur dioxide
3. cell membrane
4. Bacteria cells are very different from animal, plant or fungal cells. They don't have organelles such as nuclei, mitochondria or chloroplasts. Although they do have ribosomes and a cell wall, these are both different in structure to the ribosomes and cell walls in the cells above.
5. uterus
6. Hormones
7. Iodine
8. An autosome is any of the numbered chromosomes, as opposed to the sex chromosomes. Humans have 22 pairs of autosomes and one pair of sex chromosomes (the X and Y). Autosomes are numbered roughly in relation to their sizes.
9. The sensation of a frequency is commonly referred to as the pitch of a sound. A high pitch sound corresponds to a high frequency sound wave and a low pitch sound corresponds to a low frequency sound wave.