Hypocalcemia is the medical condition with<span> low calcium levels in the blood serum.
</span><span>Low calcium levels blood can weaken the bones, create kidney stones, and interfere with the way your heart and brain works.</span>
The effects of Hypocalcemia on the heart are w<span>eak contractions, arrhythmias, and low BP., weak thready pulse.
</span><span>Hypocalcemia causes weak cardiac contractions because it increases the </span>resting membrane potential and the excitability of the cardiac muscle.
Answer:
strong, dense outer layer of a bone- compact bone
tissue in the hollow part of the bone- bone marrow
lightweight, inner layer of a bone that
contains many small spaces- spongy bone
Explanation:
Compact bone is also known as cortical bone and is a major property and source of skeletal frames in the body due to its strong, dense outer layer.
Bone marrow is the tissue in the hollow part of the bone. It is important as it helps in the production of blood cells
Spongy bone is also known as cancellous bone. It is the lightweight, inner layer of a bone that contains many small spaces which contains a high proportion of bone marrow.
Answer:
The given characteristics can be shown by Enzymes.
Explanation:
- Enzymes are substances, mostly proteins, that helps in increasing the speed or rate of a biochemical reaction (conversion of substrate to product) by reducing the activation energy barrier of the reaction.
- The enzymes which are made up of proteins have an specific location or region inside them which is called the Active Site.
- The biochemical reaction occurs at this active site.
- The specific substrate molecule(s) comes and associated with the active site of the enzyme, mostly by means of non-covalent interactions.
- By means of amino acid side chains (which have a definite pKa) the exact environment (oxidising or reducing) required for the chemical reaction to occur is maintained by the enzyme at its active site.
- After associating with its substrate(s) the enzyme undergoes certain conformational changes in order to position the substrate(s) in the correct orientation such the biochemical reaction can occur.
- After the products are formed, the enzyme further undergoes some conformational changes to release them.
- Enzymes are similar to transport proteins because:
- When the concentration of substrates is far more than that of the available enzymes molecules, then the enzymes would get saturated with substrates, like the transport proteins.
- The enzymes are highly specific for their substrates like the transport proteins.
- The enzymes undergo conformational changes during the biochemical reaction like the transport proteins.
- Both the rate of enzymatic reaction and membrane transport is regulated by the cell.
Answer:
La respuesta correcta es opción C. "Contar con organelos membranosos como los cloroplastos".
Explanation:
Una de las características que diferencia a las células procariontes de las eucariontes, es que las células eucariontes tienen organelos membranosos como los cloroplastos. Las células eucariontes son más complejas que las celulas procariontes, y tienen organelos rodeados por membranas donde efectúan sus distintas funciones celulares. Las células procariontes no tienen organelos y realizan la mayoría de sus funciones directamente en el citoplasma.
B I would go with answer B when the ice caps melted
