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An endocrine gland secretes its products, for example hormones, directly into the blood. An example of an endocrine gland is the adrenal gland which secretes adenaline made in the adrenal medulla dire...

Plants have cells within them called photoreceptors. These receptors are light sensitive and the plant can detect the strength and direction of light, which is important for photosynthesis. The mechanism ...

Mitosis can be grouped into four main stages: prophase, metaphase, anaphase and telophase.
Prophase: the chromosomes supercondense, the nuclear envelope disintegrates and the centrioles migrate to th...

The light dependent and light independent reactions are two stages of photosynthesis that overall utilise light energy to fix carbon dioxide into sugar molecules. There are however major differences betwe...

Transcription is the first stage of protein synthesis, it occurs in the NUCLEUS. 

The main purpose is to make an mRNA (messenger RNA) copy of a gene - it is like a photocopy. 

There ar...