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adelina 88 [10]
3 years ago
14

There are two checkpoints during the cell cycle that regulate cell division. They are right before the _____ phase and _____ pha

se. S; M G1; G2 S; G1 M; G2
Biology
2 answers:
lana [24]3 years ago
8 0
<span>Two checkpoints during the cell cycle that regulate cell division are right before S phase and M phase.

</span>Cell cycle checkpoints are control mechanisms <span>necessary for proper cell division. </span><span>In the cell cycle, there are two checkpoints: </span><span>the G1 checkpoint and the G2 checkpoint. <u>The G1 checkpoint is right before the S phase, and G2 checkpoint is right before the M phase.</u>
If something is wrong at the G1 checkpoint, the cell will not enter the cell cycle. It is important to be delayed before cell enters S phase where DNA replication commences.
The G2 checkpoint is a DNA damage checkpoint and if DNA is damaged, entering the cell cycle is delayed before mitosis (M phase).</span>
sleet_krkn [62]3 years ago
4 0

Answer:Sphase and Mphase

Explanation:

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6 0
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You water three sunflower plant with salt water. Each plant receives a different concentration of salt solutions . A fourth rece
Lorico [155]

Answer:

Independent - Water/Type of water (salt and pure)

Dependent - Height of plant

Controlled - Amount of water

Explanation:

Independent is what the experimenter manipulates (in this case being the type of water.)

Dependent is what the experimenter measures and is a result of the independent (in this case being the height of plant)

Controlled is what you are trying to keep the same (in this case the amount of water you give each plant.)

6 0
3 years ago
How are cells able to respond to signal molecule,that are too large to enter the cytoplasm?
solong [7]

By the ligand receptors on the surface of the cell membrane. How do transport proteins make it easier for certain molecules to diffuse across a membrane.  

the binding of a signaling molecule, or ligand, to its receiving molecule, or receptor.


8 0
3 years ago
When carbohydrate consumption exceeds the body's immediate needs for energy, glycogenesis ____________ .
Andrei [34K]

Answer:

When carbohydrate consumption exceeds the body's immediate needs for energy, glycogenesis  decreases.

The process of conversation of stored glycogen in the liver and muscles  to glucose is Glycogenesis. It takes place when the blood glucose drops,below certain levels and the body cells need glucose for biochemical activities.Therefore, when there are excess CHO consumption,more glucose would be in the blood,and thus no need for glycogenesis.(breakdown of glycogen)

Glycogen storage space in the liver and muscles is limited. When glycogen stores are full, use of glucose for energy __Increases__________ and oxidation of fat for energy ___decreases_________ .

Definitely, this is a simple logic.As the storage for glycogen is limited,excess glucose  move into the blood, since they can not be converted to glycogen.The glucose is expended through cellular reduce the amount in the blood. Therefore, Gluconeogenesis, the production of glucose from non-CHO substances drops. Hence beta- oxidation drops.

Overall, when carbohydrate intake is excessive, lipogenesis increases.The process of converting excess CHO to fatty acids.Biochemically it is the process of converting the Carbon precursor of acetyl co -A to fatty acids.Therefore this increases to synthesized more fatty acids from CHO

Explanation:

4 0
3 years ago
Some desert beetles can live without ever drinking liquid water. They survive on "metabolic water," which is water formed during
anygoal [31]

Answer:

Metabolic water is a water obtained from eating other organisms.

Explanation:

Water is a by product that is gained in the process of cellular respiration. In respiration process, food molecules are broken down in the mitochondria of the cell for generating energy in the form of Adenine tri phosphate (ATP). With this ATP, water and carbondioxide is also produced. Carbondioxide is removed from the body while water is used in different processes. So desert beetle takes water from eating food substances.

4 0
3 years ago
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