1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Helga [31]
3 years ago
14

A substance called _____ contains the instructions for life. atom DNA protein cell

Biology
2 answers:
Cloud [144]3 years ago
6 0
Hello! DNA is deoxyribonucleic acid. DNA has all of life's plans and is a blueprint that has how your body will function. An atom has nothing to do with containing instructions for life. DNA is in a cell and proteins are what helps repair out bodies. The answer is B: DNA.
Zarrin [17]3 years ago
3 0
DNA is the correct answer.
Hope it helps!
You might be interested in
I WILL GIVE BRAINLY EST
ANEK [815]
Mechanical energy to chemical energy, i believe
6 0
3 years ago
Why do organisms without oxygen need to convert pyruvate to lactate?
IrinaK [193]

The question is incomplete. The complete question is:

Question: Why do organisms without oxygen need to convert pyruvate to lactate?

A) because pyruvate is toxic to the cells

B) in order to regenerate NAD+

C) in order to use lactate in the citric acid cycle

D) because lactate is needed to produce ATP

Answer:

B) in order to regenerate NAD+

Explanation:

Kreb's cycle and electron transport chain (ETC) are the aerobic stages of cellular respiration. ETC regenerates NAD+ and FAD+ by oxidation of NADH and FADH2 produced during glycolysis and Kreb's cycle. Here, oxygen serves as the terminal electron acceptor.

Glycolytic reactions use NAD+ as an electron acceptor and produce NADH. Therefore, a constant supply of NAD+ is required to sustain glycolysis. In absence of oxygen, ETC cannot occur and organisms convert pyruvate into lactate. Pyruvate is reduced in lactate and NADH serves as the electron donor. Thereby, lactate fermentation regenerates NAD+ to continue the process of glycolysis.

3 0
3 years ago
The average, year after year conditions of temperature, precipitation, winds, and cloud in an area are known as its
MAVERICK [17]
The answer is climate.
5 0
3 years ago
How are gasses exchanged in the alveoli
Vaselesa [24]

Answer:

The alveolar walls and capillary walls share a membrane. That's how close they're getting. This allows oxygen and carbon dioxide to readily pass from the respiratory system to the circulation. Oxygen molecules bind to red blood cells as they return to the heart.

4 0
2 years ago
with respect to its surroundings. A particular solute in this cell uses energy for its transport from the cell to its surroundin
Lilit [14]

Facilitated Transport

7 0
3 years ago
Other questions:
  • is it possible for technological advancements to have both positive and negative effects on the world
    15·1 answer
  • What is the advantage and disadvantage of animals that have placenta with those do not have placenta.​
    5·1 answer
  • 5. Describe: How did Earth's oceans form?
    15·2 answers
  • A male stickleback fish will attack other male sticklebacks that invade its nesting territory, it only attacks males with the re
    15·1 answer
  • Use the following terms to describe in detail how you visually perceive an object that you can see right now. Use the terms in o
    6·1 answer
  • How does hydrogen bonding make water a necessary resource for life?
    8·1 answer
  • Question 4
    8·2 answers
  • The couple bar is cut into three pieces of unequal length all three pieces of copper would have what
    7·1 answer
  • There are______different possible combination of the four nitrogen bases taken three at a time​
    10·1 answer
  • Consider the food chain of grass → grasshopper → mouse snake → hawk. About how much of the chemical energy fixed by photosynthes
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!