Concept explainers
Animal cells are surrounded by________ fluid is ________ fluid. This to the cytosol.
- a. phospholipid; isotonic
- b. plasma; hypertonic
- c. interstitial; isotonic
- d. interstitial; hypotonic
Introduction:
The cytosol is a concentrated aqueous gel inside the plasma membrane. It is composed of many small and large components. Cytosol is made up of fine filaments and intracellular structures called organelles. Cytosol and organelles together, form the cytoplasm.
Answer to Problem 1MC
Correct answer:
Animal cells are surrounded by interstitial fluid. This fluid is isotonic to the cytosol. Therefore, option (c) is correct.
Option (c) is given as “interstitial; isotonic”.
Explanation of Solution
Justify reasons for the correct statement:
The animal cells are enclosed by interstitial fluid that is isotonic to the cytosol. The interstitial fluid is a watery medium in a cell, also known as extracellular fluid. The cytoplasm is separated from the interstitial fluid by the plasma membrane.
Hence, option (c) is correct.
Justify reasons for the incorrect statements:
Option (a) is given as “phospholipid; isotonic”.
The phospholipids are major components of the plasma membrane. Phospholipids are a type of lipid made up of fatty acids, phosphate group, and a glycerol molecule. Hence, it is a wrong answer.
Option (b) is given as “plasma; hypertonic”.
Cell membrane is composed of plasma that is a bilayer of phospholipids. Plasma membrane is isotonic. Hence, it is a wrong answer.
Option (d) is given as “interstitial; hypotonic”.
The animal cells are enclosed by interstitial fluid which is isotonic to the cytosol. Hence, it is a wrong answer.
Hence, options (a), (b), and (d) are incorrect.
Thus, interstitial fluid surrounding the animal cells is isotonic and is also known as extracellular fluid.
Want to see more full solutions like this?
Chapter 5 Solutions
Biology
- How would an animal cell react in a glass of ocean water? a. nothing will happen b. It will shrink c. it will burst d. it will make a copy of itselfarrow_forwardTonoplast, also called vacuolar membrane is a differentially permeable membrane surrounds the ______. A cytoplasm B vacuole C nucleus D mitochondriaarrow_forwardIn which of the following ways does a bacterial cell differ from an animal cell? a. A bacterial cell is much larger than an animal cell. b. A bacterial cell has more mitochondria than an animal cell. c. A bacterial cell has RNA for its genetic material, whereas an animal cell does not. d. A bacterial cell does not have membrane-bound organelles, whereas an animal cell does.arrow_forward
- Enzymes contained in break down worn-out organelles, bacteria, and other particles. a. lysosomes c. endoplasmic reticulum b. amyloplasts d. peroxisomesarrow_forwardThe function of the cell membrane is similar to the function of what human organ system? A. Digestive B.integumentary C.muscular D. Skeletal arrow_forwardWhich pair of organelles works together to give structure and support in animal cells? A. Cytoskeleton and golgi complex B. Endoplasmic reticulum and cell membrane C. Cell wall and cytoplasm D. Cell membrane and cytoskeletonarrow_forward
- Which one of the following structures between two adjacent cells is an effective transport pathway? A Plasmalemma B Plasmodesmata C Plastoquinones D Endoplasmic reticulumarrow_forwardThe main difference between plant and animal cells is: A Plant cells has small vacuoles B Animal cell lacks rigid cell wall C Animal cells has large vacuoles D Plant cell lacks rigid cell wallarrow_forwardCompared with a smaller cell, a larger cell of the sameshape has(A) less surface area.(B) less surface area per unit of volume.(C) the same surface-area-to-volume ratio.(D) a smaller cytoplasm-to-nucleus ratioarrow_forward
- The cytoplasm would be considered ___________________ relative to the extracellular fluid. a. Isotonic b. Hypotonic c. Hypertonic d. Passive e. Activearrow_forwardCreate a table the organelles, the cytoplasm, their location and their function a. mitochondria b. ribosome c. golgi bodies d. lysosomes e. Nucleus f. cytoplasmarrow_forwarda) What are the forces that maintain structural integrity of biological membranes?b) Explain how each force mentioned is formed in membrane lipids. c) Comment on lipid to protein ratio in the membrane of molecules that transport insoluble substances in the blood.arrow_forward