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3 years ago

Of the four major types of membranes, the one consisting of dense irregular connective tissue is _____.

Biology

1 answer:

SOVA2 [1]3 years ago

7 0

The provided question is not complete, however the complete question is as follows:

Of the four major types of membranes, the one consisting of dense connective tissue overlying loose connective tissue is

A. serous membrane.

B. synovial membrane.

C. mucous membrane.

D. cutaneous membrane.

Answer:

The correct answer is option B. synovial membrane.

Explanation:

Synovial membranes are the connective tissue that is present within surrounding the joints that move freely such as elbow. These tissue membranes lack the epithelium layer in them.

These tissues are loose and thin in structure and coverings that protect tendons where they go through bony prominences. These tissues are consisting of dense irregular connective tissue present on top of the other loose tissues.

Thus, the correct answer is - option B. synovial tissue.

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Identify the substances that can readily pass through the inner mitochondrial membrane.

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Answer:

A,C E

Explanation:

The inner membrane of the mitochondria separate the matrix of the mitochondria from the cytosol(inner membrane space.). It is invaginated folded inwards to form the critae. This is an adaptive feature to increase the surface area for biochemical reaction in the mitochondria.

The invagination gives two compartments the inner mitochondria also creates the outer intermembrane space and the inner matrix

These are the substances that can pass freely the inner membrane of the mitochondria.Pyruvate and H+ can not pass through.Specifically,it is not preamble to H+ because, hydrogen ions are needed to generate the electrochemical gradients needed for the chemical energy for phosphorylation of ADP by P to form ATPs by the enzyme ATPase synthase.If the inner membrane is permeable to H+ the electochemical gradient will not be produced, and therefore ATPs productions stops.

O2 needs to pass through the inner membrane because it it the final electron acceptor. Therefore if not allowed to pass through oxidative phosphorylation and ETC will nor occur.

CO2 must pass through because its accumulation will increase the acidity of the inner mitochondria

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3 years ago

Choose the statement about renewable and nonrenewable energy sources that is NOT true.

Alenkasestr [34]

Answer:

b. There has been little to no recent growth in renewable energy use due to a lack of environmental concerns with the use of fossil fuels.

Explanation:

Fossil fuels have had tremendous negative impacts on the environment and humans as well. For that reason, the use of renewable sources of energy, such as hydropower and biomass, have become increasingly popular over the last few decades.

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3 years ago

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Choose the best location for obtaining a red bone marrow sample from a patient. 14) A) medullary cavity of femur C) hip bone B)

AnnZ [28]

Answer:

the hip bone

Explanation:

The bone marrow is divided into two; yellow and red bone marrow. The yellow bone marrow stores fats and contains mesenchymal stem cells which can develop into muscle cells or cartilage. The yellow marrow is located at the central cavities of long bones while the red bone marrow is located at the hip, sternum and humerus.

For a red bone marrow biopsy and aspiration to be done on a patient, the samples should be best obtained from the hip bone because it is a flat bone with soft tissues and no major organs and blood vessels are located.

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The various parts of the endomembrane system serve different functions in the cell. In this activity, you will identify the role

liberstina [14]

Answer:

Smooth ER:

Lipid synthesis, Calcium ion storage, Poison detoxification

Rough ER:

Protein synthesis

Golgi apparatus:

Protein modification and storage, Cisternal maturation

Lysosomes:

Autophagy, Macromolecule digestion

Explanation:

The endomembrane system is important for the production, processing, and transport of proteins and lipids in the cell.

The smooth ER:

It aids basically in lipid production and processing.

The smooth endoplasmic reticulum, or smooth ER, is an organelle that is observed in animal cells and plant cells. Itd basic function is the production of cellular products such as hormones and lipids.

The rough ER :

It is the spot of secretory protein production.

Rough endoplasmic reticulum is observed in eukaryotic cells. Its basic aid is to synthesize proteins. It consists of cisternae, tubules and vesicles. The cisternae comprise of flattened membrane disks, that play a major role in protein modification.

Golgi apparatus:

It helps in further processing of the proteins produces for the rough ER and then in sending them off in vesicles to the plasma membrane.

It's often termed the cell's post office. It modifies, sorts and arrange proteins for secretion. It aids lipid transportation around the cell, and the production of lysosomes.

Lysosomes:

Its enzymes are synthesized and formed in the rough ER and Golgi apparatus. It aid hydrolysis of macromolecules e.g. phagocytosis and autophagy.

It is involved in digestion and waste removal by feeding on worn-out organelles, food molecules, and engulfed viruses or bacteria.

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