A triple beam balance it measures mass, which is the amount of matter in an object
In cardiac muscle
a. an action potential spreads throughout the Z discs.
b. intercalated discs connect the muscle fibers together.
c. calcium enters the cell from storage chambers called intercalated discs.
d. potassium is released from the sarcoplasmic reticulum
Answer:
b. intercalated discs connect the muscle fibers together.
Explanation:
Intercalated discs are components of the muscles found in the heart(cardiac muscles).
Intercalated discs join the cardiomyoctes (muscle cells or fibers) together so that they can function as one and transmit signals amongst themselves during the contraction of the heart.
Intercalated discs are made of up desmosomes and gap junctions.
Intercalated discs are found on the lining of the sacromere and can only be seen by using a microscope to observe the longitudinal section of the heart tissue.
Answer:
Genes
Explanation:
The information to make proteins is in the DNA. The proteins are each coded for by the specific section of the DNA called a gene. A gene is required to make a protein.
Answer;
Ribosomes;
Explanation;
Ribosomes are organelles that are found inside a cell attached to the rough endoplasmic reticulum or freely suspended in the cytoplasm.
The are responsible for the process of translation which synthesis proteins in the cell.
Therefore; a pesticide that kills an insect by interfering with
the production of proteins in the insect would
most directly affect the activity of ribosomes.
