Asked by anoy

Why are leaves red in the fall?(1 point)
Responses

Chlorophyll absorbs red in the fall, rather than green.
Chlorophyll absorbs red in the fall, rather than green.

Chlorophyll breaks down because there's less sunlight.
Chlorophyll breaks down because there's less sunlight.

Chlorophyll reflects green light in the fall.
Chlorophyll reflects green light in the fall.

Mitochondria breaks down because there's less sunlight.
Answered by anoy
Which statement is true?(1 point)
Responses

The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the thylakoid membrane.
The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the thylakoid membrane.

The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.
The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.

The Calvin cycle is the light-dependent (needs light) step of photosynthesis and happens in the thylakoid membrane.
The Calvin cycle is the light-dependent (needs light) step of photosynthesis and happens in the thylakoid membrane.

The Calvin cycle is the light-dependent (needs light) step of photosynthesis and happens in the stroma.
The Calvin cycle is the light-dependent (needs light) step of photosynthesis and happens in the stroma.
Answered by anoy
The original energy for photosynthesis to begin comes from:(1 point)
Responses

water molecules
water molecules

carbon dioxide molecules
carbon dioxide molecules

light
light

ATP
Answered by anoy
Which equation best models cellular respiration?(1 point)
Responses

C6H12O6 + 6O2 + 6CO2 → 6H2O + Energy
C 6 H 12 O 6 + 6O 2 + 6CO 2 → 6H 2 O + Energy

6H2O + 6CO2 → C6H12O6 + 6O2 + Energy
6H 2 O + 6CO 2 → C 6 H 12 O 6 + 6O 2 + Energy

6H2O + 6CO2 + Energy → C6H12O6 + 6O2
6H 2 O + 6CO 2 + Energy → C 6 H 12 O 6 + 6O 2

C6H12O6 + 6O2 → 6H2O + 6CO2 + Energy
Answered by anoy
Lactic acid fermentation can be modeled by which equation?(1 point)
Responses

Pyruvic acid + NADH → Lactic acid + NAD+
Pyruvic acid + NADH → Lactic acid + NAD+

Lactic acid + NADH → Pyruvic acid NADH
Lactic acid + NADH → Pyruvic acid NADH

Pyruvic acid + NAD+ → Lactic acid + NADH
Pyruvic acid + NAD+ → Lactic acid + NADH

Lactic acid + NADH → Pyruvic acid + NAD+
Answered by anoy
In the Krebs cycle, how is citric acid formed?(1 point)
Responses

Acetyl-CoA joins with a large molecule called oxaloacetic acid.
Acetyl-CoA joins with a large molecule called oxaloacetic acid.

Enzymes combine hydrogen ions, oxygen, and electrons.
Enzymes combine hydrogen ions, oxygen, and electrons.

Carbon dioxide bonds with a chain of coenzyme A.
Carbon dioxide bonds with a chain of coenzyme A.

Pyruvic acid molecules are broken down by an acetyl group.
Answered by anoy
The following are steps of cellular respiration except(1 point)
Responses

electrolysis
electrolysis

glycolysis
glycolysis

electron transport chain
electron transport chain

the Krebs cycle
Answered by anoy
How are fossil fuels formed?(1 point)
Responses

from decaying matter not recycled into the atmosphere
from decaying matter not recycled into the atmosphere

by photosynthesis
by photosynthesis

from water released by plants
from water released by plants

by heat energy intensifying over the ocean
Answered by anoy
If an organism obtains energy from glucose, which process does it undergo?(1 point)
Responses

transpiration
transpiration

evaporation
evaporation

cellular respiration
cellular respiration

the water cycle
Answered by anoy
How does hydrogen bonding affect water as it becomes colder and eventually freezes?(1 point)
Responses

It makes ice float on top of water instead of sink.
It makes ice float on top of water instead of sink.

It allows water molecules to freeze in random patterns.
It allows water molecules to freeze in random patterns.

It creates tight spaces between water molecules.
It creates tight spaces between water molecules.

It causes ice to become more dense than water.
Answered by anoy
What is a pure substance made of positive and negative ions in a fixed ratio called?(1 point)
Responses

an atom
an atom

a hydrogen bond
a hydrogen bond

an ionic compound
an ionic compound

a polar molecule
Answered by GPT 3.5
Chlorophyll absorbs red in the fall, rather than green.
Answered by GPT 3.5
The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.
Answered by GPT 3.5
light
Answered by GPT 3.5
C6H12O6 + 6O2 → 6H2O + 6CO2 + Energy
Answered by GPT 3.5
Lactic acid + NADH → Pyruvic acid + NAD+
Answered by GPT 3.5
Acetyl-CoA joins with a large molecule called oxaloacetic acid.
Answered by GPT 3.5
electrolysis
Answered by GPT 3.5
from decaying matter not recycled into the atmosphere
Answered by GPT 3.5
cellular respiration
Answered by GPT 3.5
It makes ice float on top of water instead of sink.
Answered by GPT 3.5
an ionic compound