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lozanna [386]
3 years ago
7

PLS HELP ME TEST NEEDS TO BE TURNED IN NOW

Biology
2 answers:
castortr0y [4]3 years ago
6 0

Answer:

I believe your answer would be A

Explanation:

kari74 [83]3 years ago
4 0

Answer:

yeah I'm pretty sure it's A

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Around 97 percent of the water on Earth's surface is ______________________.
saul85 [17]

Answer:

Salt water I think. Mostly oceans right?

Explanation:

4 0
3 years ago
Read 2 more answers
A group of mutations, known as MT-ND1 , have been identified in mitochondrial DNA . These mutations are associated with a number
Doss [256]
<h2>Production of mitochondrion DNA  </h2>

Explanation:

  • The cell is not capable to complete reaction related to ATP production and electron transport.
  • This is because the electron transport chain and ATP production are combined with the association of protein in the inner membrane of mitochondrion DNA.
  • Mitochondria are the powerhouses of the cell. In all eukaryotes that don't rely upon photosynthesis, the mitochondria are the primary wellspring of adenosine triphosphate (ATP), the vitality rich intensify that drives central cell capacities.
  • These capacities incorporate power age (for instance, in muscle compression and cell division), the biosynthesis, collapsing and debasement of proteins, and the generation and control of membrane possibilities.

6 0
3 years ago
which statement is false about base stacking when nucleic acids are in a double-stranded conformation?
Lilit [14]

The statement that is false about base stacking is; B. Stacking interactions are hydrophilic in nature.

<h3>What is the truth about Base Stacking?</h3>

Base stacking is defined as a common arrangement of nucleobases that are found in the three dimensional structure of nucleic acids. Bases (or base pairs) are planar, and these planes stack at contact distance , excluding water and maximizing Van der Waals interactions.

Looking at the given options, the only one that can be said to be false about the defined base stacking above as regards nucleic acids is option B.

The missing options are;

A. Stacking interactions occur when two or more bases are positioned with their rings parallel to each other.

B. Stacking interactions are hydrophilic in nature.

C. Stacking involves a combination of van der Waals and dipole-dipole interactions between bases.

D. Base stacking helps to minimize contact of the bases with water.

E. Base stacking interactions are important in stabilizing the three-dimensional structure of nucleic acids.

Read more about Base Stacking at; brainly.com/question/19670398

#SPJ11

6 0
2 years ago
ATP and NADH are important energy carriers in the cell.
gulaghasi [49]

Answer:

1. Diffusible through the cytoplasm: BOTH

ATP is a molecule found in the cytoplasm. During the glycolysis process, two molecules of NADH are formed in the cytoplasm and are subsequently transported to the mitochondrial matrix.

2. Can donate hydrogen atoms: NADH

Cytoplasmic nadh transfers hydrogen to oxaloacetate forming malate.

3. Energy stored in bonds between two terminal phosphates: ATP

The bonds between phosphate groups like those of atp are called phosphoanhydride bonds and are used as "high energy" bonds.

4. Contains adenosine ATP

the atp is known as adenosine triphosphate

5. Activates sugars for glycolysis

ATP, by phosphorylating glucose, activates glucose with two phosphate groups (to increase its energy) so that it can be used in other processes when necessary.

6. Two (net) molecules are generated via glycolysis ATP

7. Supplies the electron transport chain nadh

In the electron transport chain each molecule of NADH is converted to 3 of ATP.

8. Hydrolysis can be coupled to biosynthetic reactions

ATP can be hydrolyzed to ADP and Pi by adding water, releasing energy.

9. Can transfer phosphate groups  

ATP provides energy by phosphate group transfer

10. Contains nicotinamide ring NADH

5 0
3 years ago
Read 2 more answers
Glucose molecules provide energy to power the swimming motion of sperm. In this example, the sperm are changing ______.
Hoochie [10]

The sperm are changing chemical energy into kinetic energy.

Chemical energy is defined as the chemical substance’s potential to undergo a transformation through a chemical reaction. So, this type of energy can be transformed to other forms of energy by a chemical reaction.

Kinetic energy, on the other hand, is the energy that an object (structure) possesses due to its motion.

So, in the example above, chemical energy of the glucose is used (by breaking the bonds of this molecule through the chemical reaction) for the formation of sperm’s kinetic energy (necessary for movement).

4 0
3 years ago
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