Chapter 4 - Learn Smart - Assignment
Questions and Answers 100% Solved
The main structure of the plasma membrane is called the - ✔✔phospholipid
bilayer
____ are thin, microscopic projections extending from the surface of the plasma
membrane. They are smaller than cells - ✔✔microvilli
Identify the parts of a cell - ✔✔Identify the parts of a cell
Which statements characterize organelles? - ✔✔They are generally located
within cells; Each type of organelle has a specific function, They play roles in
growth, repair, and cellular maintenance
Gap junctions are bridge by proteins called - ✔✔connexons
The Na-K exchange pump is a special type of ion pump called an ____ pump
because it moves one type of ion into a cell ____ its concentration gradient and
another type of ion out of the cell ____ its concentration gradient. -
✔✔exchange, against, against
Forms of passive transport across cell membranes are - ✔✔diffusion and
osmosis
Page 1 of 15
©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, Put the steps of transcription into order: elongation (RNA polymerase forms an
RNA copy of the gene), initiation (DNA is unwound and RNA polymerase
attaches to the promoter of the gene), and termination (the RNA strand is
released from the DNA strand). - ✔✔initiation (DNA is unwound and RNA
polymerase attaches to the promoter of the gene), elongation (RNA polymerase
forms an RNA copy of the gene) , and termination (the RNA strand is released
from the DNA strand).
Identify the structures of the nucleus - ✔✔Identify the structure of the nucleus
The inside of the cell is relatively more ____ than the outside of the cell. -
✔✔negative
The ____ is the "control center" of cellular activities in a cell - ✔✔nucleus
In the cell cycle, division of the nucleus is called - ✔✔mitosis
In cell division, one cell divides to produce two identical cells. These new cells
are called ____ cells. - ✔✔daughter
A resting membrane potential is essential in the normal function of ____ cells. -
✔✔muscle and nerve
Chromatin is composed of ____. - ✔✔DNA and proteins
Transport (shuttle) vesicles are produced within a cell by - ✔✔rough ER
Page 2 of 15
©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
Questions and Answers 100% Solved
The main structure of the plasma membrane is called the - ✔✔phospholipid
bilayer
____ are thin, microscopic projections extending from the surface of the plasma
membrane. They are smaller than cells - ✔✔microvilli
Identify the parts of a cell - ✔✔Identify the parts of a cell
Which statements characterize organelles? - ✔✔They are generally located
within cells; Each type of organelle has a specific function, They play roles in
growth, repair, and cellular maintenance
Gap junctions are bridge by proteins called - ✔✔connexons
The Na-K exchange pump is a special type of ion pump called an ____ pump
because it moves one type of ion into a cell ____ its concentration gradient and
another type of ion out of the cell ____ its concentration gradient. -
✔✔exchange, against, against
Forms of passive transport across cell membranes are - ✔✔diffusion and
osmosis
Page 1 of 15
©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, Put the steps of transcription into order: elongation (RNA polymerase forms an
RNA copy of the gene), initiation (DNA is unwound and RNA polymerase
attaches to the promoter of the gene), and termination (the RNA strand is
released from the DNA strand). - ✔✔initiation (DNA is unwound and RNA
polymerase attaches to the promoter of the gene), elongation (RNA polymerase
forms an RNA copy of the gene) , and termination (the RNA strand is released
from the DNA strand).
Identify the structures of the nucleus - ✔✔Identify the structure of the nucleus
The inside of the cell is relatively more ____ than the outside of the cell. -
✔✔negative
The ____ is the "control center" of cellular activities in a cell - ✔✔nucleus
In the cell cycle, division of the nucleus is called - ✔✔mitosis
In cell division, one cell divides to produce two identical cells. These new cells
are called ____ cells. - ✔✔daughter
A resting membrane potential is essential in the normal function of ____ cells. -
✔✔muscle and nerve
Chromatin is composed of ____. - ✔✔DNA and proteins
Transport (shuttle) vesicles are produced within a cell by - ✔✔rough ER
Page 2 of 15
©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
