Water and organic compounds
Sticking of water molecules to each other is called
Cohesion
What is the function of the bark?
The outermost protective layer of the trunk.
In which zone are root hairs found?
Zone of maturation
What is the main function of the xylem? And which direction it transports
Main function: transportation of water and minerals; only upward
In which cells do more photosynthesis occur?
palisade cells
What is the function of the carbohydrates?
And give an example of a food sample
gives energy;
bread, cereal, juice etc
What is heartwood?)
This is the central part of the trunk, primarily made up of old, non-functioning xylem.
What is the vascular bundle?
The xylem and phloem are collectively known as this structure.
Phloem made of ____ cells
living cells
What are the main products of photosynthesis?
glucose and oxygen
Describe the difference between macro elements and microelements
Macroelements -> elements that required in large quantities
Microelements -> element that required in small quantities
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Which layer of the root protects the vascular cylinder?
endodermis
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What is a stoma?
Stomata are pores on the epidermis of plants that consist of two specialized guard cells flanking a central aperture.
Determine whether each statement about the organic compounds is true or false.
We should use Biuret's solution to test the presence of carbohydrates in food. ______
The main function of protein is growth and repair. ______
Benedict’s solution is used to test the presence of lipids. ______
The main function of vitamins and minerals is to make the body work properly. _____
We should use Biuret's solution to test the presence of carbohydrates in food. _False
The main function of protein is growth and repair. _True
Benedict’s solution is used to test the presence of lipids. _False
The main function of vitamins and minerals is to make the body work properly. _True
What is the function of the cambium?
growth of phloem and xylem
Which region of the root helps protect its tip from damage as it grows?
root cap
What is the difference between an open and closed circulatory system?
Open circulatory system - hemolymph is not enclosed in the vessels, but is pumped into a cavity
Closed circulatory system - blood always moves inside blood vessels
In which organelle photosynthesis occur?
chloroplast
You are a plant scientist working at a local greenhouse. One day, a farmer brings in a plant that is not growing well. The farmer explains that this plant has been healthy but recently started showing unusual symptoms, such as stunted growth and older leaves turning yellow.
Which mineral ion deficiency could cause these symptoms?
nitrogen
What is the lenticels?
The lenticels on the surface of the cork allow live cells to breathe.
What cells are responsible for root growth?
(hint. in the zone of division)
meristem cells
Name the parts of the heart
atrium and ventricle
What is the formula of photosynthesis?
Water+Carbon dioxide -> Glucose + Oxygen