Answer: Vascular smooth muscle cells.
Explanation:
Vascular smooth muscle cells are the contractile tissues which regulates flow blood and pressure of the blood by vasoconstriction (contraction) and/or vasodilatation (relaxation).
Vasoconstriction is the contraction of the blood vessels to increase tge pressure of the blood.
Vasodilatation is the relaxation of the blood vessels which results in a decrease in blood pressure.
Answer: false
Explanation:
Both plant and animal cells contain chloroplasts. Plant cells do NOT contain mitochondria. Most plant cells contain two or more vacuoles. Plant cells contain a large central vacuole.
The role is speeding up chemical reactions
