Biology A Unit 2: Lessons 6-10 Fall 2023 with complete
solution
Lesson 6:
Lesson 6:
Determine if the following statement is true or false.
As cell size increases, the surface-area-to-volume ratio increases.
False
What is a cell?
the smallest structural unit of living matter capable of independently carrying out life's
processes
What are leaves, stems, and roots all examples of?
organs
Which of the following are examples of human tissues?
Select all that apply.
epithelial
connective
Which of the following is a function of the stem?
produces leaves, branches, and flowers
As a cell becomes larger, its volume _[blank]_.
increases much faster than its surface area
Which of the following correctly identifies body structures made of a collection of
tissues?
organs
What advantage does a cell have by being long and thin instead of round or
square?
XXX WRONG XXX
It can increase its surface area, which can allow it to be smaller.
Which term represents the smallest structural unit of living matter capable of
independently carrying out life's processes?
cell
Which of the following are examples of tissue?
Select all that apply.
nerves
muscle
To which level of organization does the heart belong?
organs
_[blank]_ are groups of cells that have similar structures and functions.
Tissues
, Which of the following are examples of plant tissues?
Select all that apply.
ground
vascular
The respiratory system is an example of a _[blank]_.
human organ system
Lesson 7:
Lesson 7:
What are examples of negative feedback?
Select all that apply.
A person starting to sweat to cool down during exercise.
A thermostat switching on a heater when the temperature gets low.
What is homeostasis?
The process of maintaining a stable internal environment despite external changes.
The hormone insulin—and its effect on the body—is an example of _[blank]_.
negative feedback
Which of the following statements about insulin is true?
It is secreted by the pancreas.
Examine the scenario below.
A lizard's body temperature begins to drop, so it moves out of the shade onto a
rock in the sun.
What process is portrayed in this example?
homeostasis
What is an example of positive feedback?
XXX WRONG XXX
A thermostat switching on an air conditioner when the temperature gets too hot.
A pressure cooker valve opening to reduce the high pressure inside.
Read the following description.
Clusters of cells located near the carotid artery in the neck sense the amount of
oxygen in the blood. If the level is too low, these arteries send signals to the brain
that result in an increased breathing rate, which increases the amount of oxygen
in the blood.
This is an example of which of the following?
negative feedback helping to maintain homeostasis
Which of the following is a correct statement about insulin and glucose?
solution
Lesson 6:
Lesson 6:
Determine if the following statement is true or false.
As cell size increases, the surface-area-to-volume ratio increases.
False
What is a cell?
the smallest structural unit of living matter capable of independently carrying out life's
processes
What are leaves, stems, and roots all examples of?
organs
Which of the following are examples of human tissues?
Select all that apply.
epithelial
connective
Which of the following is a function of the stem?
produces leaves, branches, and flowers
As a cell becomes larger, its volume _[blank]_.
increases much faster than its surface area
Which of the following correctly identifies body structures made of a collection of
tissues?
organs
What advantage does a cell have by being long and thin instead of round or
square?
XXX WRONG XXX
It can increase its surface area, which can allow it to be smaller.
Which term represents the smallest structural unit of living matter capable of
independently carrying out life's processes?
cell
Which of the following are examples of tissue?
Select all that apply.
nerves
muscle
To which level of organization does the heart belong?
organs
_[blank]_ are groups of cells that have similar structures and functions.
Tissues
, Which of the following are examples of plant tissues?
Select all that apply.
ground
vascular
The respiratory system is an example of a _[blank]_.
human organ system
Lesson 7:
Lesson 7:
What are examples of negative feedback?
Select all that apply.
A person starting to sweat to cool down during exercise.
A thermostat switching on a heater when the temperature gets low.
What is homeostasis?
The process of maintaining a stable internal environment despite external changes.
The hormone insulin—and its effect on the body—is an example of _[blank]_.
negative feedback
Which of the following statements about insulin is true?
It is secreted by the pancreas.
Examine the scenario below.
A lizard's body temperature begins to drop, so it moves out of the shade onto a
rock in the sun.
What process is portrayed in this example?
homeostasis
What is an example of positive feedback?
XXX WRONG XXX
A thermostat switching on an air conditioner when the temperature gets too hot.
A pressure cooker valve opening to reduce the high pressure inside.
Read the following description.
Clusters of cells located near the carotid artery in the neck sense the amount of
oxygen in the blood. If the level is too low, these arteries send signals to the brain
that result in an increased breathing rate, which increases the amount of oxygen
in the blood.
This is an example of which of the following?
negative feedback helping to maintain homeostasis
Which of the following is a correct statement about insulin and glucose?
