An enzyme's shape is determined by the sequence of amino acids in its structure, and the bonds which form between the atoms of those molecules. ... Different types of enzymes have different shapes and functions because the order and type of amino acids in their structure is different.
Denature means to destroy the characteristic properties of (a protein or other biological macromolecule) by heat, acidity, or other effect which disrupts its molecular conformation.
Question: A "mystery molecule" was isolated in a laboratory and scientists found that the molecule readily crossed artificial membranes. Which of the following molecules can be ruled out as the "mystery molecule?"
a) CO2
b) O2
c) Cl-
d) H2O.
Answer:
c) Cl-
Explanation:
Membranes are the bilayers of phospholipids. The core of the membranes is non-polar and hydrophobic in nature due to the presence of non-polar fatty acid tails of phospholipids. The non-polar core of the membranes does not allow the charged particles such as chloride ions and the other polar and large substances to move through the membrane. The observed molecule could easily cross the artificial membrane. This means that the molecule was not a charged particle such as chloride ions.
The answer is C, The population of an area decreases
Cell wall: strong, ridgid, gives a plant cell its rectangular structure, green, non permeable, only in plants, 1st layer of plant cell
Cell membrane: weak membrane surrounding animal cell, 1st layer of animal, second in plant, whiteish clear color, semi permeable, in both plants and animals,
Both: organelle, in plant cells, made of cellulose
