2025 (Ch. 1-6) multiple choices quiz
correct answers provided
Molecules bind to receptor sites and are enclosed in vesicles in the process of
A. exocytosis
B. receptor-mediated endocytosis
C. pinocytosis
D. phagocytosis - Answer>>B. receptor-mediated endocytosis
The major blood vessels that supply the skin are in the
A: epidermis
B. dermis
C. subcutaneous layer
D. basement membrane - Answer>>B. dermis
Anatomy and physiology are difficult to separate because
A. physiological functions in an organism are ongoing.
B. our understanding of physiology is changing more than our understanding of anatomy
C. body parts take up space
D. physiological functions depend on anatomical structures - Answer>>D. physiological
functions depend on anatomical structures
ATP is important to cellular processes because it
,A. releases oxygen when high-energy phosphate bonds are broken
B. is formed by muscles contracting or whenever cellular work occurs
C. is a by-product of all catabolic reactions
D. provides energy for cellular work when the terminal, high-energy bond is broken -
Answer>>D. provides energy for cellular work when the terminal, high-energy bond is broken
DNA and RNA differ in that
A. RNA is found only in the nucleus and DNA is found only in the cytoplasm
B. RNA is double-stranded and DNA is single-stranded
C. DNA holds genetic information and RNA uses that information to synthesize protein
D. RNA has deoxyribose and DNA has ribose - Answer>>C. DNA holds genetic information and
RNA uses that information synthesize protein
A peptide bond forms between
A. adjacent amino acids
B. a tRNA and an mRNA
C. a gene and a protein
D. an mRNA and an rRNA - Answer>>A. adjacent amino acids
The anaerobic reactions of cellular respiration take place in the
A. mitochondria
B. ribosomes
C. cytoplasm
D. nucleus - Answer>>C. cytoplasm
, The activities of an anatomist consist of _____, whereas those of a physiologist consist of
_____.
A. observing body parts; studying functions of body parts
B. conducting experiments; making microscopic examinations
C. studying molecules; observing forms of the body parts
D. sketching; dissecting - Answer>>A. observing body parts; studying functions of body parts
Cells are placed in a solution that causes them to absorb liquid until they burst. When more
water is removed from the solution, newly added cells do not burst. The original solutions was
_____, while the second was _____ to the cells.
A. isotonic; hypertonic
B. hypertonic; isotonic
C. hypotonic; isotonic
D. isotonic; hypotonic - Answer>>C. hypotonic; isotonic
Homeostasis exists if concentrations of water, nutrients, and oxygen in the body are balanced
and heat and pressure _____.
A. decrease steadily
B. increase when the body is stressed
C. remain within certain limited ranges
D. fluctuate greatly between very high and low values - Answer>>C. remain within certain
limited ranges
Which of the following are cellular fragments?
A. white blood cells