1. What is the original source of energy in the food you eat?

Question

Plants
Sun***
Sugar
Photosynthesis

2. Why are leaves red in the fall?
Chlorophyll breaks down because there's less sunlight.***
Chlorophyll absorbs red in the fall, rather than green.
Chlorophyll reflects green light in the fall.
Mitochondria breaks down because there's less sunlight.

Answer 1

Agree on both.

Answer 2

Questions:
1.What is the original source of energy in the food you eat?
2.Why are leaves red in the fall?
3.Which statement is true?
4.The original energy for photosynthesis to begin comes from:
5.Which equation best models cellular respiration?
6.Lactic acid fermentation can be modeled by which equation?
7.In the Krebs cycle, how is citric acid formed?
8.Which macro molecule provides the energy that starts glycolysis?
9.During which phase of cellular respiration is carbon dioxide released?
10.Which compound is a reactant in cellular respiration?
11.How many O2 molecules are required for two glucose molecules to undergo cellular respiration?
12.Which statement is true?
13.Which activity uses ATP to raise body temperature?
14.How can Gram staining be used to determine how bacteria respond to their environments?
15.Which statement is true?
16.Essay
17.Essay
18.Essay
19.Essay
20.Essay

Answers:
1.sun
2.Chlorophyll breaks down because there's less sunlight.
3.The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.
4.light
5.C6H12O6 + 6O2 → 6H2O + 6CO2 + Energy
6.Pyruvic acid + NADH → Lactic acid + NAD+
7.Acetyl-CoA joins with a large molecule called oxaloacetic acid.
8.ATP
9.Krebs cycle
10.oxygen
11.12
12.Ectotherms cannot insulate (stop heat loss from) their bodies and can only control their body temperature involuntarily.
13.shivering
14.Gram staining helps scientists visualize bacterial motility.
15.Most protists only respire with oxygen.
16.Essay
17.Essay
18.Essay
19.Essay
20.Essay

Answer 3

The answers are on question off but other than that no name is right

Answer 4

thanks no name they were all correct except I had two alternative questions

8. The following are steps of cellular respiration except
C) electrolysis

15. Which activity uses ATP to lower body temperature?
C) panting

these are 100% correct

Answer 5

ok can i just say that i'm so freaking grateful for all the people who put their answers on here? like OMG. i owe my life to all of you 😭

Answer 6

Thank you so much love

Answer 7

1. What is the original source of energy in the food you eat?
B - Sun

2. Why are leaves red in the fall?
A - Chlorophyll breaks down because there's less sunlight.

3. Which statement is true?
D - The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.

4. The original energy for photosynthesis to begin comes from:
B - light

5. Which equation best models cellular respiration?
A - C6H12O6 + 6O2 → 6H2O + 6CO2 + Energy

6. Lactic acid fermentation can be modeled by which equation?
B - Pyruvic acid + NADH → Lactic acid + NAD+

7. In the Krebs cycle, how is citric acid formed?
D - Acetyl-CoA joins with a large molecule called oxaloacetic acid.

8. The following are steps of cellular respiration except
A - electrolysis

9. How are fossil fuels formed?
D - from decaying matter not recycled into the atmosphere

10. If an organism obtains energy from glucose, which process does it undergo?
B - cellular respiration

11. How does hydrogen bonding affect water as it becomes colder and eventually freezes?
A - It makes ice float on top of water instead of sink.

12. What is a pure substance made of positive and negative ions in a fixed ratio called?
A - an ionic compound