1. In desert plants, rate of water loss gets reduced due to presence of
(1x13=13)
(1) cuticle. (ii) stomata (iii). Lignin (iv) suberin
2. Where stroma is present in a cell?
3. The lining of blood vessels, lung alveoli and kidney tubules are all made up of epithelial tissue
(True false)
4.Cell arises from pre existing cell was stated by
(1) Haeckel. (i) Virchow (iii) Hooke (iv) Schleiden
5.Husk of coconut is made of ............. tissue.
6. The undefined nuclear region of prokaryotes is also known as
(i) nucleus (ii). Nucleolus. (iii) nucleic acid (iv) nucleoid
7.Which animals tissue help in repair of tissue and fills the space inside organ?
8. Companion cells are associated with
(i) sieve tubes. (ii) sclerenchyma (iii) vessels. (iv) parenchyma
9. The chromatin material gets organized in the form of .............. when the cell is about to divide.
10. The proteins and lipids, essential for building the cell membrane are manufactured by
(i) rough endoplasmic reticulum (ii) Golgi apparatus (iii) plasma membrane (iv) mitochondrial
11. Walls of sclerenchyma cells are thickened due to which reason?
12.In unicellular organisms the vacuole contains the food which an organism has consumed.
(True/ false)
13. Name the plastid which stores starch oils and protein granules.
Please tell fast
Answers
Answer:
Puri kahanhi hi likh di hai kya
Answer:
(1) cuticle.
(2) cell organelle chloroplast
(3) True
(4) Virchow
(5) Sclerenchyma tissue
(6) Nucleoid
(7) Areolar tissue
They are found in the skin and muscles, around the blood vessels, nerves, etc. Function of areolar tissue: It fills the space inside the organs, supports internal organs and helps in repair of tissues.
(8) Sieve tubes
(9) chromosomes
(10) endoplasmic reticulum
(11) Sclerenchyma tissue possesses long, narrow cells with thickened walls. They possess secondary walls made of lignin. Lignin is a chemical substance, which acts as cement and hardens them.
(12) True
(13) Leucoplast
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