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
seraphim [82]
3 years ago
10

Please help me!! I don’t understand

Biology
1 answer:
drek231 [11]3 years ago
7 0

Answer:

<em>The correct option is A. An airplane lifting into the sky during take- off.</em>

Explanation:

The force of the gravitational pull is known to act downwards. The objects which will move along this force i.e will move downwards will have positive action.

A negative action will act against the gravitational pull i.e a force that is applied in the upward direction. As an aeroplane is lifted upwards during taking- off i.e against the gravitational pull of the earth hence it will be considered as a negative action.

You might be interested in
How does the denaturing of an enzyme affect the enzyme activity
Anit [1.1K]
It will completely stop the enzyme's activity when the denaturization is complete.
5 0
4 years ago
If a cat meows in the woods, does a dog cringe?!
Likurg_2 [28]

Answer:

ofc

Explanation:

7 0
3 years ago
Read 2 more answers
5._____________________is factual information that results from a scientific investigation. A.bias B.data C.assumption D.none of
Mnenie [13.5K]
D would be the correct answer
7 0
4 years ago
Which lists the correct order of evolutionary history?
Mama L [17]
The lists of the correct order of evolutionary history is Jellyfish, Reptiles, Mammals. This three are classified as vertebrates and all I know that almost all the animals we know are vertebrates. Jellyfish is a fish that do not have a backbones, example of reptiles is garter snake, there are so many mammals in the forest such as bat, rodent, bear and much more.
5 0
3 years ago
Read 2 more answers
Which describes the process of fermentation?
xxMikexx [17]

Explanation:

<u>anaerobic process that restores NAD+ supply </u>

<u></u>

Within cells, aerobic respiration may not occur due to several factors:

  • - a lack of inorganic, final electron acceptors
  • -incomplete or lack of a complete electron transport system
  • -missing genes for enzymes within the Kreb's cycle

Thus, they utilize other means for the generation of energy in the form of ATP and to replenish NAD+ an oxidized form of NADH, the main electron carrier in glycolysis. Pyruvate is produced in the cytoplasm via glycolysis- it is also used as an electron acceptor in a process called fermentation.

Further Explanation:

overall: C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≈38 ATP

In all eukaryotic cells mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced. Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’ or Citric acid cycle via the oxidization of pyruvate( through the process of glycolysis in the cytoplasm).

Oxidative phosphorylation describes a process in which the NADH and FADH2 made in previous steps of respiration process give up electrons in the electron transport chain these are converted it to their previous forms, NADH+ and FAD. Electrons continue to move down the chain the energy they release is used in pumping protons out of the matrix of the mitochondria.

This forms a gradient where there is a differential in the number of protons on either side of the membrane the protons flow or re-enter the matrix through the enzyme ATP synthase, which makes the energy storage molecules of ATP from the reduction of ADP. At the end of the electron transport, three molecules of oxygen accept electrons and protons to form molecules of water...

  • Glycolysis: occurs in the cytoplasm 2 molecules of ATP are used to cleave glucose into 2 pyruvates, 4 ATP and 2 electron carrying NADH molecules. (2 ATP are utilized for a net ATP of 2)
  • The Citric acid or Kreb's cycle: in the mitochondrial matrix- 6 molecules of CO2 are produced by combining oxygen and the carbon within pyruvate, 2 ATP oxygen molecules, 8 NADH and 2 FADH2.
  • The electron transport chain, ETC: in the inner mitochondrial membrane, 34 ATP, electrons combine with H+ split from 10 NADH, 4 FADH2, renewing the number of electron acceptors and 3 oxygen; this forms 6 H2O, 10 NAD+, 4 FAD.

Learn more about cellular life at brainly.com/question/11259903

Learn more about cellular respiration at brainly.com/question/11203046

#LearnWithBrainly  

6 0
3 years ago
Other questions:
  • B cells produce ____________________ that bind to a specific antigen and stops it from invading future body cells.
    7·2 answers
  • Amino acids are acids because they always possess which functional group?
    13·1 answer
  • Explain the difference between the good we eat and energy in the body
    14·1 answer
  • What mental function is common across the animal kingdom?
    15·1 answer
  • What will happen when the global carrying capacity for humans is reached?
    13·2 answers
  • Is an arthropoda multicellular or unicellular?
    15·1 answer
  • The water, carbon and nitrogen cycles are examples of what type of cycle?
    7·1 answer
  • Design an experiment to investigate how distance from the ground will affect a ball’s potential energy. Write out the materials
    15·1 answer
  • In traditional landscaping, leaves are raked off the ground and bagged. In which of the following ways does this practice most s
    7·1 answer
  • Choose all the answers that apply. Which of the following is a source of watershed pollution? pesticide fertilizer animal waste
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!