1. Other
  2. Other
  3. 1 in order to establish a quotpolarizedquot cell membranc a...

Question: 1 in order to establish a quotpolarizedquot cell membranc a...

Question details

1. In order to establish a polarized cell membranc a) Potassium tends to leak out of the cell passively with a concentration gradient. b) Sodium leaks passively into the cell with a concentration gradient c) differences in ion permeability are responsible for differences in charge across the membrane d) All of the above are correct. 2. The cell organelle in which most of the ATP synthesis occurs is the a) nucleus b) plasma membrane c. peroxisome d, mitochondrion 3. Glands that secrete products into the blood are classified as a) merocrine c) endocrine d) exocrine 4, Fibroblasts, osteoblasts and chondroblasts are derived from undifferentiated embryonic tissue termed: a) parental connective tissue b) mesenchyme c) connective tissue proper d) areolar connective 5. The stem cell from which lood cells are derived is the a) fibroblast b) chondrobiast d) reticular cell 6. Chemicai reactivizy of an element is largely détermined bi a) number of protons in the nucleus of the atom b) number of neutrons in the nucicus of the atom c) number of electrons in the outer or valence shell of the atom d) number of positronic particles in the element a) is the diffusion of a solvent, such as water, through a selectively permeable mernbrane, from a soiution of iesser osmolarity to a solution of greater osmolarity b) is classified as an active process which requires energy from the cell c only occurs in test tubes and therefoce is not important to metabolism in living cells d All of the abeve ta, b, and c) are correcr

8. Isotores of an element a) have the same number of protons but different number of neutrons as the parent element b) may emit particles as radioactive decay c) may be very useful in medicine and biological sciences as tracer compounds d) All of the above (a, b, and c) are correct. 9. All cells have a resting membrane potential a) in which the inside of the plasma membrane is negative relative to the outside of the membrane. b) in which the inside of the plasma membrane is positive relative to the outside of the membrane. c) that is maintained by active transport of chloride and phosphate ions. d) All of the above (a, b and c) are correct. 10. Plasma membrane junctions that prevent movement of materials between intercellular spaces along the lateral boundaries of cells of an epithelial layer are termed: a) desmosomes b) gap junctions c) tight junctions d) interstitial nexus junctions 1. The epidermis a) serves to protect against abrasion because of keratin in outer layers b) tends to prevent uncontrolled water loss fiom the body c) might include keratinocytes, melanocytes, Merkel cells and Langerhans cells d) All of the above (a, b and c) are correct 12. The imost abundant protein in the body and the one that provides tensile strength and limits stretch of the connective tissue is a) Elastin b) Collagen c) Fibronectin d) Thrombin 23, Glands that accumulate secretory products within the cytoplasm and then secrete them by ruptiring the cell membrane and killing the cell are classed as a) meTocrine b) holocrine c) apocrine d) endocrine 14 Loose connective tisstre includes a) areolar b) adipose c) reticular d) All of the above (a, b, and c) are correct.

Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution