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Which three things are present in plant and agal cells but not in animal cells? (3)

Cell wall Chloroplasts A permanent vacuole

This is a common question. I like to remember it as CVC - Cats Vs Cucumbers - like all the YouTube videos of cats being scared by cucumbers.

CR
Answered by Chris R. Biology tutor
3307 Views

How could you increase the rate of a chemical reaction?

The collision theory states that when two or more particles have sufficient energy and orientation, the collision will be successful in producing a reaction. There are many ways to increase the rate of a ...

JZ
Answered by Julia Z. Chemistry tutor
2558 Views

Give an example of a negative feedback mechanism in the human body.

When the hypothalamus in the brain detects that the blood is getting too concentrated (not enough water), it stimulates the pituitary gland to release an anti-diuretic hormone (ADH). When it reaches the k...

PM
Answered by Paul M. Biology tutor
7579 Views

How do current and voltage vary in series and parallel circuits, respectively?

In a series circuit, the current is the same throughout; the voltage is split among the components (such as LEDs or resistors) in proportion to the resistance of the components (higher resistance means mo...

PM
Answered by Paul M. Physics tutor
14034 Views

What is the function of a catalyst in a chemical reaction?

It provides an alternative reaction pathway with a lower activation energy. However, it does not lower the activation energy for the 'normal' reaction without a catalyst.

PM
Answered by Paul M. Chemistry tutor
19041 Views

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