Which of the following statements accurately compares and contrasts eukaryotes and prokaryotes?(1 point)

Question

Responses

Prokaryotes have a true nucleus and membrane-bound organelles, whereas eukaryotes lack a true nucleus and organelles.
Prokaryotes have a true nucleus and membrane-bound organelles, whereas eukaryotes lack a true nucleus and organelles.

Eukaryotes have a true nucleus and membrane-bound organelles, while prokaryotes lack a true nucleus and organelles.
Eukaryotes have a true nucleus and membrane-bound organelles, while prokaryotes lack a true nucleus and organelles.

Both eukaryotes and prokaryotes have a true nucleus, but only eukaryotes possess membrane-bound organelles.
Both eukaryotes and prokaryotes have a true nucleus, but only eukaryotes possess membrane-bound organelles.

Eukaryotes and prokaryotes both lack a true nucleus, but only eukaryotes have membrane-bound organelles.

Answer 1

The statement that accurately compares and contrasts eukaryotes and prokaryotes is:

Eukaryotes have a true nucleus and membrane-bound organelles, while prokaryotes lack a true nucleus and organelles.

Eukaryotes have distinct cellular structures, including a defined nucleus and organelles surrounded by membranes, whereas prokaryotes do not possess a true nucleus or membrane-bound organelles.

Answer 2

Which organelle is responsible for the synthesis of proteins in a cell?(1 point)
Responses

Nucleus
Nucleus

Ribosome
Ribosome

Mitochondrion
Mitochondrion

Golgi apparatus

Answer 3

The organelle responsible for the synthesis of proteins in a cell is the Ribosome. Ribosomes can be found free in the cytoplasm or attached to the endoplasmic reticulum, known as rough ER, where they translate mRNA into polypeptide chains, ultimately forming proteins.

Answer 4

What are the main components of the nervous system, and how do they work together to control the body?(1 point)
Responses

Bones and muscles; they provide structure and movement
Bones and muscles; they provide structure and movement

Stomach, liver, and intestines; they digest food and absorb nutrients
Stomach, liver, and intestines; they digest food and absorb nutrients

Heart, arteries, and veins; they pump blood and transport it throughout the body.
Heart, arteries, and veins; they pump blood and transport it throughout the body.

Brain, spinal cord, and nerves; they process information and control responses

Answer 5

The main components of the nervous system are the Brain, spinal cord, and nerves; they process information and control responses.

The brain processes sensory information, makes decisions, and coordinates responses. The spinal cord transmits signals between the brain and the rest of the body, while the nerves carry signals to and from different body parts, enabling communication and control over bodily functions and reactions.

Answer 6

Identify the function of the digestive system and its major organs from the choices listed below.(1 point)
Responses

Function: It transports oxygen to cells. Organs: lungs, trachea, bronchi
Function: It transports oxygen to cells. Organs: lungs, trachea, bronchi

Function: It filters waste from the blood. Organs: kidneys, bladder, urethra
Function: It filters waste from the blood. Organs: kidneys, bladder, urethra

Function: It protects against infection. Organs: while blood cells, spleen, thymus
Function: It protects against infection. Organs: while blood cells, spleen, thymus

Function: It breaks down food into nutrients. Organs: mouth, esophagus, stomach, intestines

Answer 7

The correct choice for the function of the digestive system and its major organs is:

Function: It breaks down food into nutrients. Organs: mouth, esophagus, stomach, intestines.

The digestive system is responsible for processing food, breaking it down into smaller molecules, and absorbing the nutrients necessary for the body’s functions.

Answer 8

What is the main purpose of the skeletal system, and how does it interact with the muscular system?(1 point)
Responses

To provide structure and allow movement; muscles attach to bones and cause movement
To provide structure and allow movement; muscles attach to bones and cause movement

To protect against infection; it produces antibodies
To protect against infection; it produces antibodies

To circulate blood; it pumps blood through arteries and veins
To circulate blood; it pumps blood through arteries and veins

To digest food; it absorbs nutrients through the intestines

Answer 9

The correct response regarding the main purpose of the skeletal system and how it interacts with the muscular system is:

To provide structure and allow movement; muscles attach to bones and cause movement.

The skeletal system provides the framework for the body and supports its structure, while the muscular system relies on this framework by having muscles attach to bones. When muscles contract, they pull on the bones, facilitating movement.

Answer 10

What is homeostasis, and what are some different body systems that work together to maintain it?(1 point)
Responses

The heart, arteries and veins work together for the circulation of blood.
The heart, arteries and veins work together for the circulation of blood.

The nervous, endocrine, circulatory and excretory systems work together for the maintenance of a stable internal environment
The nervous, endocrine, circulatory and excretory systems work together for the maintenance of a stable internal environment

The digestive and excretory systems work together for the breakdown of food into nutrients.
The digestive and excretory systems work together for the breakdown of food into nutrients.

The immune and skeletal systems work together for the protection of the body from pathogens.

Answer 11

The correct response regarding homeostasis and the body systems that work together to maintain it is:

The nervous, endocrine, circulatory and excretory systems work together for the maintenance of a stable internal environment.

Homeostasis is the process by which the body maintains a stable internal environment, despite changes in external conditions. Various systems, including the nervous and endocrine systems (which regulate bodily functions), the circulatory system (which transports nutrients and wastes), and the excretory system (which removes waste), all play crucial roles in achieving and maintaining homeostasis.