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What is negative feedback?

A reaction causing conditions to return to the body's ideal point in order to maintain homeostasis.
ZW
Answered by Zazy W. • Biology tutor
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Photosynthesis occurs in the guard cells but not the epidermal cells. Explain why this is important in the control of the rate of transpiration in the plant

Need to figure out what the question is actually askingEssentially the question is explain how guard cells work and what their role isGuard cells will have more sugar than epidermal cells as epidermal cells ...
LB
Answered by Lucy B. • Biology tutor
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Describe and explain the lock and key model of enzyme action, and how denaturation affects this.

The lock and key model of enzyme action describes how enzymes are specific for their substrates. The enzyme is the lock and the substrate is the key. Much how every key is specific for a lock, every enzyme i...
CF
Answered by Chloe F. • Biology tutor
7963 Views

What is the definition of osmosis?

Osmosis is the net movement of water across a partially permeable membrane. Water travels from a region of high water concentration to a region of low water concentration. This means that water moves down th...
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Answered by Charlotte L. • Biology tutor
3181 Views

What is diffusion, and what factors affect it?

Diffusion is the passive movement of particles from an area of high concentration to an area of low concentration. Factors which affect it include temperature , the concentration gradient , the surface area ...
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Answered by Umair A. • Biology tutor
5680 Views