Question

question 20
which organelles are membranous sacs containing acid hydrolases?
golgi apparatus
endoplasmic reticulum
ribosome
lysosome
question 22
what is a function of the smooth endoplasmic reticulum?
protein synthesis
atp synthesis
site of intracellular digestion
lipid and steroid synthesis

Explanation:

For Question 20: Lysosomes are the membranous sacs containing acid hydrolases which are used for breaking down various substances.
For Question 22: The smooth endoplasmic reticulum is involved in lipid and steroid synthesis. Protein synthesis is mainly associated with ribosomes and rough endoplasmic reticulum, ATP synthesis occurs in mitochondria, and the site of intracellular digestion is lysosomes.

Answer:

Question 20: D. Lysosome
Question 22: D. Lipid and steroid synthesis