All categories

3 years ago

1. What do body membranes do? What do body membranes do?

Biology

2 answers:

WARRIOR [948]3 years ago

5 0

Answer:

Body membranes are thin sheets of tissue that cover the body, line body cavities, and cover organs within the cavities in hollow organs.

kupik [55]3 years ago

3 0

Answer:

Cell membranes serve as barriers and gatekeepers. They are semi-permeable, which means that some molecules can diffuse across the lipid bilayer but others cannot. ... Specialized proteins in the cell membrane regulate the concentration of specific molecules inside the cell.

You might be interested in

Describe the change which will occur if a piece of peeled potato is placed in a concentrated sugar solution and explain why this

skelet666 [1.2K]

Answer:

Through the process of Osmosis, water will move from a region of high water potential ('concentration') to low water potential. Therefore, water will slowly leave the cells of the potato and enter the sugar solution in an attempt to reach equilibrium and the potato will therefore lose mass.

3 0

3 years ago

Read 2 more answers

What type of organic compound is the most abundant component of all cell membranes?

mixer [17]

The cell membrane is made out of lipid bilayers and energy. They also have on the outside for identifying

3 0

3 years ago

Folds exhibit which type of deformation? folds exhibit which type of deformation? elastic ductile tensional brittle

Mice21 [21]

Folds exhibit DUCTILE deformation. Folds are bent like pattern formed on the upper crust of the rocks. In simple words, folds are bend in rock strata. These are ductile deformation in the rock strata. These are results of compressional stresses on the rocks. Folds are of two types anticlines and synclines.

8 0

4 years ago

The backbone vertebrae, skull, and rib cage make up the _______ skeleton. Among other types of cells, bone marrow produces _____

NNADVOKAT [17]

Answer:

1:Axial skeleton,2:hemopoietic blood cell,

Explanation:

hope it help i only know two

6 0

4 years ago

Read 2 more answers

in experiment 1, which of the following factors was systematically changed so that its effects could be observed? A.light intens

Stels [109]

Explanation:

<u>A.light intensity</u>

<u />

6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

Carbon dioxide + water + energy= glucose + oxygen

At the compensation point, the rate of CO2 production by respiration matches the rate of CO2 utilization in photosynthesis- there is no net CO2 production . Since photosynthesis is rate limited, the rate of energy intake can be reduced in order to reach the compensation point; lowering the light intensity would slow the rate of photolysis and thus photosynthesis. Similarly, an increase in light intensity

increases the rate of photosynthesis- the CO2 level would be reduced as more inorganic CO2 is fixed, together with producing O2 as waste.
would increase the temperature of the environment- light energy is converted to heat energy which increases temperature.
lead to higher levels of humidity- the heightened temperature increases the rate of evaporation of water from tissues, and thus increases the humidity (water vapor content of the surrounding air)

Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. This occurs in the thykaloids, where pigment molecules like chlorophyll reside.

Occuring in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Additionally, water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ions and produces molecules of the energy storage molecule ATP through an electron transport chain. This occurs in the thykaloids, where pigment molecules like chlorophyll reside. Later, in dark reactions, NADP and NADPH are used in the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules. These store energy in their bonds, which can be released in respiration in the mitochondria.