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Biology lovers Here we will cover diffrent topics of biology .

10/07/2023

TISSUES

Group of structurally similar or dissimilar cells that perform a common function and have a common origin.
TYPES OF TISSUES

1) Meristmatic tissue
2) Permanent tissue

Meristmatic tissue- The cells of this tissue have the power of division.

Permanent tissue- These tissues are structurally and functionally specialised which temporarily or permanently lose the ability to divide.

06/07/2023

VIRAL DISEASES OF MAN

NAME OF DISEASE CAUSAL AGENT
1)Influenza Influenza virus
2)Small pox Variola virus
3)Mumps Paramyxovirus
4)AIDS Retrovirus
5)Poliomyelitis Polio virus
6)German measles Rubella virus
7Measles Measles virus

05/05/2023

Which of the following cell organelle does not contain DNA?
(a) Nucleus (b)Lysosome (c)Chloroplast (d)Mitochondria
Answer
Lysosomes

29/04/2023

Q. Which mineral is required for opening and closing of stomata........

(a) Zinc (b) Potassium

(c) Phosphorus (d) Magnesium

DETAIL

1) Trick - Open(opening) the closed(closing) pot(Potassium).
2) Zinc- Helps in synthesis of auxin hormone.
3) Phosphorus- Helps in ATP formation.
4) Magnesium- Core mineral element of chlorophyll molecule.

20/04/2023

Q. Guttation is the result of -

(a) Transpiration (b) Vaporization

(c) Root pressure (d) Translocation

Answer- Root pressure

DETAIL

1) Guttation- The process of exudation of droplets from thevspecialised structures called called hydathodes present on the leaf.
2) Vaporization- When water is converted into vapours.
3) Transpiration- Removal of water from the surface of leaf is called transpiration.
4) Translocation- The movement of materials (food through phloem) from leaves to other tissues (parts) throughout the plant.
Root pressure - It is the pressure created in the vessels of xyllem.

19/04/2023

Q. Study of reptiles is called as

(a) Ethology (b) Herpetology

(c)Ornithology (d) Mycology

Answer- Herpetology

DETAIL

1) Ethology- Scientific and objective study of animal behaviour.

2) Ornithology- Study of birds.

3) Mycology- Study of fungi.

18/04/2023

Q. Study of pollen grain is-

(a)Etymology (b) Palynolgy

(c) Carpology (d)Pomolgy

Answer- Palynology

DETAIL

1)Etymology- Study of history of words.
2) Carpology- Study of seeds and fruits.
3) Pomology- Study of fruit and itc cultivation.

17/04/2023

Q. Cowper's gland are found in-

(a)Female amphibians (b)Male mammals

(c) Male amphibians (d) Female mammals

Answer- Male mammals

Detail

1)Another name of Cowper's gland is bulbourethral gland.
2) It helps in the lubrication of the p***s.
3) It is present between prostrate gland and urethra, at the beginning of internal portion of the p***s.

1) Which hormone is known as flight and fight hormone?(a) Adrenaline ( b)Thyroxine(c) Oxyto...
16/04/2023

1) Which hormone is known as flight and fight hormone?

(a) Adrenaline ( b)Thyroxine

(c) Oxytocin (d) ADH

Answer- Adrenaline

DETAIL
1) Adrenaline is also called emergency hormone and secreated from adrenal gland.
2) Throxine is produced from thyroid gland .
3) Oxytocin is called birth hormone and is secreated from pitutary gland.
4) ADH (Antidiuretic hormone) also called vasopressin hormone.

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