Top answers

Biology
A Level

Describe the processes and forces that allow water movement up a plant stem.

Water moves into the plant stem from the soil, and up to the leaves via the xylem. Water is taken up by the hairs on the root of the plant down the water potential gradient via osmosis, following the acti...

HC
Answered by Hannah C. Biology tutor
16997 Views

Describe the process of insulin secretion. (7 marks)

Beta cells have vesicles containing insulin inside them (1). (2) High glucose levels cause glucose uptake via glucose channels into the beta cell and glucose is metabolised into ATP (3) inside the cell, w...

GG
Answered by Gabriella G. Biology tutor
2606 Views

How does the pancreas control blood sugar levels?

In humans, the pancreas can sometimes be described as an endocrine gland. This means it releases some of its substances staight into the bloodstream; this is the mechanism used to secrete...

MN
Answered by Madura N. Biology tutor
7149 Views

What are the main stages stages of mitosis?

IPMAT(C)

Interphase - normal cell growth (non mitotic)

Prophase

Metaphase

Anaphase

Telophase

Cytokinesis (cytoplasm division)

MT
Answered by Miss T. Biology tutor
4053 Views

How do i approach a long answer question in order to gain full marks?

My approach is to break down the question. In the case of long answer- questions, examiners want to firstly know that you understand a question before answering.  Let's use the following example:

E...

SC
Answered by Silouanos C. Biology tutor
3302 Views

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