Lesson 1: Cells and Organisms
Which of the following is true?
Choice C)
Which of the following is a main function of the cell membrane?
A
to prevent all substances from entering the cell
to surround all contents of the cell
to ensure organelles can leave the cell
to surround all contents of the cell
The brain is an organ in the nervous system.
Which of the following is true about the brain?
(Choice A)
Which of these tasks are carried out by the brain?
Choose 2:
The stomach is part of the ______ system
a. Digestive
b. Respiratory
c. Nervous
a. Digestive
Which is the smallest unit that can carry out the functions of life?
Choose 1 answer:Choose 1 answer:
(Choice A)
The function of ______ is to contain an organism’s genes.
mitochondria
a chloroplast
the nucleus
the nucleus
What are tissues made up of?
organs
organ systems
cells
cells
Which of these senses results from the detection of mechanical stimuli?
sight
touch
taste
(Choice B)
touch
Which is the largest organ in the human body?
a. Heart
b. Skin
c. Brain
b. Skin
Which of the following is made up of cells?
Choose 1 answer:Choose 1 answer:
(Choice B)
What is true about how organelles are unique?
a. Each organelle contains a different set of genes
b. Each organelle performs a different job in the cell
c. Some organelles are structural and others are formal
b. Each organelle performs a different job in the cell
The nervous system includes the brain, nerves, and spinal cord. All of these parts are made up of cells.
Which of the following is true about the cells in the nervous system?
Cells in the brain and spinal cord have different, specialized structures and functions.
Each cell in the brain and spinal cord is a unique type of cell.
Cells in the brain and spinal cord have the same structure, but different functions.
A)
Cells in the brain and spinal cord have different, specialized structures and functions.
Which of these senses results from the detection of chemical stimuli?
sight
smell
touch
smell
The diaphragm is part of the _______ system.
a. Skeletal
b. Reproductive
c. Respiratory
c. Respiratory
Which of the following is true about cells?
Choose 1 answer:Choose 1 answer:
(Choice B)
Which of the following cell parts is present in both plant and animal cells?
(Choice B)
Which statement is true about organ systems in the human body?
A
Each organ system works completely alone.
If one organ system fails, another will take its place.
Organ systems carry out unique functions that help the body live and grow.
Organ systems carry out unique functions that help the body live and grow.
Which of the following steps related to sensory processing occurs first?
Sensory receptors detect signals from the environment.
Information from receptors is passed along nerve cells to the brain where the information is organized.
The brain triggers a response and stores a memory.
Sensory receptors detect signals from the environment.
What organ powers your entire body?
a. Brain
b. Heart
C. Soul
b. Heart