Bonds that result from shared electrons are called

ATI RN

ATI RN Test Bank

Bonds that result from shared electrons are called:

A. ionic bonds B. covalent bonds C. peptide bonds D. covalent or peptide bonds

Correct Answer: B

Rationale: Covalent bonds involve electron sharing; peptide bonds are a specific type of covalent bond in proteins.

Which organelle contains hydrolytic enzymes?

A. lysosome B. ribosome C. mitochondrion D. Golgi complex

Correct Answer: A

Rationale: Lysosomes contain hydrolytic enzymes for breaking down waste and cellular debris.

The genetic code for a single amino acid consists of:

A. one nucleotide B. two nucleotides C. three nucleotides D. four nucleotides

Correct Answer: C

Rationale: A codon, specifying one amino acid, is a triplet of three nucleotides.

Simple squamous epithelium is not found in:

A. lymph vessels B. pancreatic duct C. small arterioles D. air sacs of lung

Correct Answer: B

Rationale: Simple squamous lines vessels and alveoli for diffusion; pancreatic ducts have cuboidal/columnar epithelium.

Adipose tissue forms:

A. only during fetal development B. throughout life C. mainly during fetal development and the first postpartum year D. mainly at puberty

Correct Answer: B

Rationale: Adipose tissue can form and expand throughout life based on energy storage needs.

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