Requirements for Life

The elements required for life are ( in alphabetical order ):

(a)  

The biomolecules most vital for the development of life are

(in alphabetical order, with 's'):

(a)  

Tags

NGSS.MS-LS3-1

Why is water essential for life? because it is a solvent, so that means it ( tick all that are correct )

• is a very good solute.

• neutralizes chemicals

• enables chemicals to be transported

• stops strong reactions that can be dangerous

• enables chemical reactions to occur.

What is the composition of air in our atmosphere? tick all that are true

• Nitrogen gas – 78%

• Oxygen – 21%

• Trace gases such as: neon, helium, methane, hydrogen, nitrous oxides and ozone

• Carbon dioxide – 21%

• Water - 74%

Oxygen is needed for aerobic respiration.

• True

• False

Carbon dioxide is important for photosynthesis.

• True

• False

Tags

NGSS.MS-LS1-6

Ozone is concentrated in a layer close to the Earth’s surface and transmits harmful UV radiation.

• True

• False

Of these three- methane, carbon dioxide and water - only methane is a greenhouse gas, dangerous for life.

• True

• False

1. C6H12O6 + O2 → CO2 + H2O

2. C3H3O3 + NADH → C3H6O3 + NAD+

3. 6CO2 + 6H2O→ C6H12O6 + 6O2

which equation is which process?

• 1.aerobic respiration 2. lactic acid fermentation 3. photosynthesis

• 1. photosynthesis 2. lactic acid fermentation 3. aerobic respiration

• 1. lactic acid fermentation 2. photosynthesis 3. aerobic respiration

• none of the above

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

NGSS.HS-LS2-5

Limiting factor is an environmental factor that will limit the rate of photosynthesis. Light colour is one.

The others are: (name 3 in alphabetical order)

(a)  

Tags

NGSS.MS-LS1-6