Events of fertilisation - Study guides, Class notes & Summaries

Providing a chapter of ncert biology, hand written notes are in the document.Everything about chapter and basic knowledge for neet is in the document.Here is summary of this chapter “Reproduction” It is the ability of living organisms to produce a new generation of living individuals similar to themselves. “Reproduction events in human” Its in 7 stages which should be always written in sequence. Gametogeneis=>formation of gametes,i.e. sperms in males and ovum in females known as ga...

Reproduction: Reproduction means the ability to produce individuals of the same species. Humans are sexually reproducing and viviparous. Reproductive Events in Humans (Occur after Puberty) (i) Gametogenesis: Formation of gametes, i.e., sperms in males and ovum in females. (ii) Insemination: Transfer of sperms into the female genital tract. (iii) Fertilisation: Fusion of male and female gametes leading to the formation of zygote. (iv) Implantation: Formation and development of bla...

AQA GCSE BIOLOGY PAPER 2H HIGHER TIER VERSION 1 GCSE COMBINED SCIENCE: TRILOGY Higher Tier Biology Paper 2H Monday 1 June 2020 Afternoon Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in the spaces provided. • If...

Describe the events of fertilisation that occur after the acrosome reaction. Correct Answer -Membrane of sperm and egg cell fuse together -cortical granules release contents into zona pellucida -Zona pellucida thickens -Haploid nuclei fuse Explain how phospholipids form a cell surface membrane Correct Answer -Hydrophilic parts associate with water -Hydrophobic parts repel water -a bilayer forms with hydrophobic parts pointing in towards the centre of the bilayer Describe the role o...

AQA GCSE BIOLOGY PAPER 2H HIGHER TIER VERSION 1 GCSE Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in the spaces provided. • If you need extra space for your answer(s), use the lined pages at the end of this book. Write the...

AQA GCSE BIOLOGY PAPER 2H HIGHER TIER VERSION 1 GCSE Materials For this paper you must have: • a ruler • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in the spaces provided. • If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number against your an...

AQA GCSE BIOLOGY PAPER 2H HIGHER TIER VERSION 1 GCSE Monday 1 June 2020 Afternoon Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in the spaces provided. • If you need extra space for your answer(s), use the lined pages at the...

AQA GCSE BIOLOGY PAPER 2H HIGHER TIER VERSION 1 GCSE COMBINED SCIENCE: TRILOGY Higher Tier Biology Paper 2H Monday 1 June 2020 Afternoon Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in the spaces provided. • If...

GCSE Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in the spaces provided. • If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number against your answer(s). • Do all rough work ...

Suggest the advantages of the change in blood flow in blood vessels during exercise. [3 marks] - answer--more blood flow to muscles during exercise -supplying more glucose and oxygen/ removing carbon dioxide/ lactic acid/ heat -for high rate of respiration/ to meet increased demand for energy Explain how microorganisms contributed to the increase in temperature during processing of organic waste. [2 marks] - answer-respiration produces heat explain the advantage of showing the data using...