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2 years ago

True or false ? Cell membranes are selectively permeable, allowing only some materials to cross the cell membrane. This

Biology

2 answers:

Nikolay [14]2 years ago

4 0

Answer:

True

Explanation:

Cell membranes are selectively permeable because of the structure of the phospholipid bilayer.

This bilayer only lets certain things in because it depends on the polarity, size, and type of molecule.

For example, glucose molecules are too large to enter. But, carbon dioxide molecules can go in and out easily because of their small size.

devlian [24]2 years ago

4 0

Answer:

This statement is True

“One way that a cell maintains homeostasis is by controlling the movement of substances across the cell membrane. The lipid bilayer is selectively permeable to small, nonpolar substances. Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.”

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True or false questions PLEASEE HELP :(

Gala2k [10]

1 is true 2 is true 3 is true 4 is falls and all the rest are true

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2 years ago

Read 2 more answers

During the conversion of glucose into a free form of energy only a small percentage is converted into useable ATP. What is the r

Yuki888 [10]

<h2>Adenosine triphosphate</h2>

Explanation:

ATP, or adenosine triphosphate, is synthetic vitality the cell can utilize.
The particle gives vitality to your cells to perform work, for example, moving your muscles as you stroll down the street.When ATP is separated into ADP (adenosine diphosphate) and inorganic phosphate, vitality is discharged.
ATP is converted into ADP which can be recycled back into ATP Is Converted into A waste product that The cell excretes ATP Is broken down into its individual parts and would need to be re-made Through metabolism to be used again.
At the point when one phosphate bunch is expelled by breaking a phosphoanhydride bond in a procedure called hydrolysis, vitality is discharged, and ATP is changed over to adenosine diphosphate (ADP).
ATP works as the vitality cash for cells. It permits the cell to store vitality quickly and transport it inside the cell to help endergonic concoction reactions.
As ATP is utilized for vitality, a phosphate gathering or two are withdrawn, and either ADP or AMP is created.

5 0

2 years ago

Here’s part b of what I asked before

dedylja [7]

Explanation:

All cells have a plasma membrane, ribosomes,and DNA. The plasma membrane, or cell membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment. They both use ribosomes for producing proteins.

+sorry i made a mistake on the previous question. Prokaryotic cell doesn't have nucleus. I obviously didn't know the right meaning of this word bc im not a native english speaker

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3 years ago

The seeds are plant tissue and plants are able to perform both cellular respiration and

katrin [286]

Respiration is process where plant produce heat

Explanation:

Respiration is essential component for every living thing this. Respiration help living thing get energy and stay alive. In plant cellular respiration is used to convert nutrient which is present in soil and this process can be understand as a cellular activity. In plants seeds play vital role.

The basic difference between respiration and photosynthesis is in respiration plant consume nutrient for survival and alive plant cell but in photosynthesis plant is able to make their own food. In respiration only plant produce heat energy

The formula of Respiration:

Oxygen + glucose – Carbon dioxide + water + heat energy

The formula of Photosynthesis

Carbon dioxide + Water + Sunlight – Oxygen + glucose

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2 years ago

Define kinetic energy.

hram777 [196]

Kinetic energy is the energy that an object has because of its motion.

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3 years ago