1st lesson free
Krishna's profile and their contact details have been verified by our experts
Krishna
- Rate $2
- Response 1h
$2/h
Contact
1st lesson free
- Biology
- Zoology
- Biotechnology
I am passed out pure science stream. My most favourite subject biology.
- Biology
- Zoology
- Biotechnology
Lesson location
About Krishna
Welcome back to class! Grab your notebook and pen. Today, we are keeping our focus locked on high-yield NCERT concepts, diagrams, and precise definitions so you are completely prepared to ace your biology exams.Fantastic! I love the enthusiasm. Since you're geared up and ready to go, let's make the most of our study session.
See more
About the lesson
- All Levels
- English
All languages in which the lesson is available :
English
Here is a comprehensive, high-yield compilation of the most important lines and concepts directly from NCERT Biology textbooks, structured by chapters/units to help you revise quickly and score maximum marks in exams.
Unit I: Reproduction
Sexual Reproduction in Flowering Plants
Microsporogenesis: The process of formation of microspores from a pollen mother cell (PMC) through meiosis is called microsporogenesis.
Tapetum: The innermost wall layer of the anther. It nourishes the developing pollen grains and is multinucleate with dense cytoplasm.
Pollen Viability: In some cereals like rice and wheat, pollen grains lose viability within 30 minutes of release; in some members of Rosaceae, Leguminosae, and Solanaceae, they maintain viability for months.
Double Fertilization: Unique to angiosperms. It involves two types of fusions: Syngamy (male gamete + egg cell \rightarrow zygote) and Triple Fusion (male gamete + two polar nuclei \rightarrow Primary Endosperm Nucleus / PEN).
Apomixis: A form of asexual reproduction that mimics sexual reproduction, producing seeds without fertilization (e.g., in some species of Asteraceae and grasses).
Human Reproduction
Spermiogenesis: The transformation of spermatids into spermatozoa (sperm).
Spermiation: The release of mature spermatozoa from the Sertoli cells into the lumen of the seminiferous tubules.
Implantation: The blastocyst embeds in the endometrium of the uterus, brought about by the blastomere cells, leading to pregnancy.
Placenta: Acts as an endocrine tissue and produces several hormones like hCG, hPL, estrogens, and progestins (essential during pregnancy).
See more
Rates
Rate
- $2
Pack rates
- 5h: $10
- 10h: $20
free lessons
This first lesson offered with Krishna will allow you to get to know each other and clearly specify your needs for your next lessons.
- 1hr
online
- $2/h
Other tutors in Biology
Akshi
London, United Kingdom & online
- $68/h
- 1st lesson free
Dr Mahmoud
, United Kingdom & online
- $109/h
- 1st lesson free
Habiba
Oxford, United Kingdom & online
- $68/h
- 1st lesson free
Chantelle
London, United Kingdom & online
- $136/h
Alaa
Richmond Hill, Canada & online
- $54/h
Dr Sonali
Los Gatos, United States & online
- $60/h
- 1st lesson free
Joe
London, United Kingdom & online
- $95/h
- 1st lesson free
Georges
Baltimore, United States & online
- $50/h
- 1st lesson free
Pratima
Winterville, United States & online
- $25/h
- 1st lesson free
Michael
London, United Kingdom & online
- $82/h
- 1st lesson free
Dr Ammar
Dearing, United States & online
- $80/h
- 1st lesson free
Tabitha
London, United Kingdom & online
- $123/h
- 1st lesson free
Christopher
Bend, United States & online
- $45/h
- 1st lesson free
Dr Amin
, United Kingdom & online
- $48/h
Jérôme
Paris 7e, France & online
- $140/h
- 1st lesson free
Salma
Streatham, United Kingdom & online
- $75/h
Hamza
Rochdale, United Kingdom & online
- $34/h
- 1st lesson free
Kaique
Parque da Mooca, Brazil & online
- $17/h
- 1st lesson free
Harriet
Hartford, United Kingdom & online
- $116/h
- 1st lesson free
Mustafa
Dearborn, United States & online
- $30/h
- 1st lesson free
-
See Biology tutors
