Photosynthesis

Question 1

What is photosynthesis?

Answer 1

It is a chemical reaction that takes place in the chloroplasts to produce glucose.

Question 2

What is the equation for photosynthesis?

Answer 2

Carbon Dioxide + Water —> Glucose + Oxygen

Question 3

What is an easy way to remember the photosynthesis equation?

Answer 3

Respiration equation backwards.

Question 4

What minerals do plants need for growth?

Even better if you know what they are used for

Answer 4

• Nitrates (For growth)
• Phosphates (For healthy roots)
• Potassium (For healthy leaves and flowers)
• Magnesium (For making chlorophyll

Question 5

If a plant does not have enough of a mineral, what may it suffer from?

Answer 5

Mineral Deficiency.

Question 6

What can farmers use to prevent or treat mineral deficiency.

Answer 6

Fertilizers.

Question 7

What does the waxy layer (cuticle) on a plant prevent and how?

Answer 7

Reduces water loss. This water loss is caused by evaporation and the waxy surface acts like a barrier against evaporation.

Question 8

How does the stomata prevent water loss from evaporation?

Answer 8

It opens and closes which traps water in.

Question 9

Name the process that happens in the stomata that is similar to our lungs.

Answer 9

Gas Exchange.

Question 10

What is the stomata and where is it located on the leaf?

Answer 10

Stomata are tiny little holes that open and close. They are located under the leaf.

Question 11

What does the Nitrate Mineral help the plant with?

Answer 11

Growth.

Question 12

What does the phosphate mineral help the plant with?

Answer 12

Healthy Roots.

Question 13

What does the potassium mineral help the plant with?

Answer 13

Healthy leaves and flowers.

Question 14

What does the magnesium help the plant with?

Answer 14

They make chlorophyll.

Question 15

Give an example of a specialized cell in a plant.

Answer 15

Palisade, Root hair cell, Xylem, Phloem

Question 16

What are palisades jobs and why are they specialized to do this job?

Answer 16

They are the major site of photosynthesis.
- They have a lot of chloroplast, which are full of chlorophyll.
- They are found at the top of the leaf where most sunlight reaches.

Question 17

What do the chlorophylls do?

Answer 17

Absorb sunlight for photosynthesis.

Question 18

How are leaves adapted for photosynthesis?

Answer 18

• They have lots of chlorophyll.
• They are thin so they allow gasses to diffuse in and out.
• They have a large surface area to absorb as much sunlight as possible.
• They have veins running through their leaves (xylem and phloem)

Question 19

What does the xylem do in the plant?

Answer 19

Transports water from the roots to around the plant.

Question 20

What does the phloem do?

Answer 20

It transports glucose from the leaves to the whole plant.

Question 21

What do root hair cells do?

Answer 21

They absorb water and mineral from the roots.

Question 22

What adaptations do plants in the desert have to survive?

Answer 22

• Waxy layer that covers the plants to reduce water from evaporating
• Stems that store water
• Widespread roots that allow the pant to collect water from a large area
• Spines instead of leaves that have smaller surface areas which reduces water loss

Question 23

What adaptations to plants in the arctic have to survive?

Answer 23

• Grow very close to the ground to avoid wind.
• Have small leaves to reduce water loss.
• Can survive under a layer of snow - the snow acts like a blanket, keeping the plant warm.

Question 24

The glucose produced during photosynthesis is used by plants to do what?

Answer 24

• Respiration.
• To make starch.
• To make cellulose (for cell walls).
• To make proteins and lipids.