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Dovator [93]
4 years ago
12

How can a hypothesis help scientists understand the natural world

Biology
1 answer:
AlladinOne [14]4 years ago
5 0
A hypothesis is an observation made by a scientist that can be tested over to be proven true or false
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Describe how the central nervous system differs from the autonomic nervous system.
nexus9112 [7]

Answer: Autonomic: Acting or occurring involuntarily, without conscious control. Central nervous system: The part of the peripheral nervous system that transmits signals from the central nervous system to skeletal muscles, and from receptors of external stimuli, thereby mediating sight, hearing, and touch.

Explanation:

3 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
What is the main function of the nucleolus?a. It produces enzymes that are then exported to the lysosomes. b. It produces cell a
STatiana [176]

Answer:

C..

Explanation:

6 0
3 years ago
Read 2 more answers
Match the following terms and definitions 1. lysosomes and peroxisomes small storage sacs containing water, food, and waste 2. v
Readme [11.4K]

ok so I've done this problem before trust me:

A. bundles of microtubules that separate to opposite poles of a cell - CENTRIOLES

B. prepares protein-packed vesicles for release outside of the cell - VESICLES

C. small storage sacs containing water, food, and waste - VACUOLES

D. rough and smooth organelle that produces protein, steroids, and lipids - ENDOPLASMIC RETICULUM

E. tiny sacs at the end of the ER which contain protein - GOLGI COMPLEX

F. chains of protein fibers that provide support and shape - CYTOSKELETON

G. powerful enzymes used to process cellular activity - LYSOSOMES & PEROXISOMES

H. whip-like structures on cells that are used for movement - FLAGELLA

I. produces and assembles proteins - RIBOSOMES

5 0
3 years ago
_______ hold plants together and support their leaves.
kozerog [31]
A stem is what keeps the plant together and supports their leaves
B. STEMS
6 0
3 years ago
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