Plant process

Question 1

What is photosynthesis?

Answer 1

Photosynthesis is how plants use sunlight to make food.

Question 2

Photosynthesis equation:

Answer 2

Carbon dioxide + Water + light energy —-> Glucose + Oxygen
6 CO2 + 6 H2O + light energy → C6H12O6 + 6 O2

Question 3

What is food stored as in photosynthesis?

Answer 3

Food is stored as starch, amino acids, fats and oils during photosynthesis.

Question 4

What are the two stages in photosynthesis? Describe each.

Answer 4

1. Light stage- Chlorophyll in the leaves convert light energy into chemical energy. Some of the light energy is used to split water molecules (h2o) into hydrogen (H) and oxygen (Co2) . This process is called the evolution of oxygen. The oxygen is given out as water material.
2. Dark stage- The hydrogen relaxed from the water molecules combined with carbon dioxide to form glucose this process is called reduction of carbon dioxide. The process requires some of the energy that was absorbed during the light stage but does not require sunlight.

Question 5

List the parts of the internal leaf.

Answer 5

Upper epidermis, palisade cells, spongy cells, air space, guard cells, lower epidermis, cuticle and stomatal opening.

Question 6

List the parts of the external leaf.

Answer 6

Mid vein, leaf stalk, apex, margin, vein and amina or blade.

Question 7

What is respiration?

Answer 7

Respiration is the break down or oxidation of food substances to release energy.

Question 8

Respiration equation:

Answer 8

Glucose + Oxygen → Carbon Dioxide + Water + Energy
(C6H12O6) + (O2) → (CO2) +(H2O) + (ATP)

Question 9

What is transpiration?

Answer 9

Transpiration is the loss of water through the leaves of plants in the firm of water vapour.

Question 10

What is translocation?

Answer 10

Translocation is the movement of organic and inorganic substances from one plant of the plant to another.

Question 11

What is absorption?

Answer 11

Absorption is the process whereby the plant’s roots take up minerals and water from the soil into the plant.

Question 12

What is ossmosis?

Answer 12

Osmosis is the movement of water from where there’s a lot of it to where there’s less through a membrane.

Question 13

What is diffusion?

Answer 13

Diffusion is when molecules spread from crowded areas to less crowded ones until they’re evenly spread out.

Question 14

What is a permeable membrane?

Answer 14

A permeable membrane lets some things through but not others, depending on their size or properties.

Question 15

What is flaccid?

Answer 15

Flaccid means a plant cell is limp or soft because it lacks water.

Question 16

What is wilting?

Answer 16

Wilting is when plants droop because they don’t have enough water.

Question 17

What is Anaerobis?

Answer 17

Anaerobis refers to processes or organisms that can live or operate in the absence of oxygen.

Question 18

What is Aerobic?

Answer 18

Aerobic refers to processes or organisms that require oxygen to function.

Question 19

What are Pholem vessels?

Answer 19

Pholem vessels transport manufactured food to other parts of the plants to be used or stored.

Question 20

What is Xylem vessels?

Answer 20

Xylem vessels carry water and mineral salts up to the leaves to be manufactured into food.