Unit 1 Test

The transverse plane divides the body into

superior and inferior portions (top and bottom)

The backbone is on the ________ side of the body. 1. Ventral/ anterior 2. Dorsal/posterior

2. Dorsal/posterior

What is diffusion? 1. The movement of particles from low conc. to high conc. in a given space 2. The movement of particles from high conc. to low conc. in a given space

2. The movement of particles from high conc. to low conc. in a given space

What type of passive transport uses proteins to help molecules pass through the membrane? 1. Diffusion 2. Osmosis 3. Facilitated diffusion

3. Facilitated diffusion

Active transport requires cellular energy and moves substances form area of _____ concentration to _______ low concentration. 1. Low, low 2. High, low 3. Low, high 4. High, high

3. Low, high

Genetic material is contained within the ______ of the cell. 1. Ribosomes 2. Cytoplasm 3. Nucleus 4. Nucleolus

3. Nucleus

When a white blood cell captures bacteria. 1. Osmosis 2. Diffusion 3. Exocytosis 4. Endocytosis

4. Endocytosis

Stimulus event

Events that influence behavior

Which of the following best describes homeostasis? 1. The ability to react to threats by spiking heart rate and blood pressure 2. The ability to maintain a reasonably stable internal condition regardless of surrounding factors 3. The ability to convert nutrients into energy

2. The ability to maintain a reasonably stable internal condition regardless of surrounding factors

Which statement is correct? 1. The chest is inferior to the stomach 2. The neck is superior to the pelvis

2. The neck is superior to the pelvis

Macromolecules are often too large to fit through the cell membrane or membrane proteins. Cells can transport these molecules by packaging them in small membrane sacs called ________? 1. Lysosomes 2. Vesicles 3. Riosomes

2. Vesicles

Mrs. Jones is walking toward you. You are looking at her from (an) ________ view? 1. Posterior 2. Dorsal 3. Anterior

3. Anterior

In the anatomical position, the palms of the hands face: 1. Posteriorly 2. Superiorly 3. Anteriorly

3. Anteriorly

The smallest unit capable of life on its own as a(n): 1. Organ 2. Organelle 3. Cell 4. Tissue

3. Cell

Which of the following lists the levels of body organization from smallest to largest? 1. Organism, organ system, organ, tissue, cell 2. Organ, organ system, organism, tissue, cell 3. Cell, tissue, organ, organ system, organism

3. Cell, tissue, organ, organ system, organism

During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will: 1. Move across the membrane to the outside of the cell. 2. Stop moving across the membrane. 3. Continue to move across the membrane in both directions. 4. Move across the membrane to the inside of the cell.

3. Continue to move across the membrane in both directions.

Which correctly identifies all steps involved in negative feedback? 1. Termination event, stimulus, reply, effector, control center, and receptor 2. Initiation event, response, stimulus, effector, command center 3. Receptor, stimulus, effector, response

3. Receptor, stimulus, effector, response

What do you call the small structures (organs) within a cell? 1. Cells 2. Organelles 3. Structures 4. Tissues

2. Organelles

What is the most likely homeostatic response to an increase in environmental temperature? 1. Blood vessel constriction 2. Producing sweat 3. Shivering and muscle contraction

2. Producing sweat

A sagittal section divides the body into a/an: 1. Front and back fortion 2. Right and left side 3. Upper and lower portion

2. Right and left side

The sagittal plane divides the body into

right and left

Selectively permeable

some substances can pass across them and others cannot

How does a catalyst work in speeding up a reaction? 1. By lowering the activation energy or reaction 2. By giving them more energy 3. By making them more available

1. By lowering the activation energy or reaction

A substance that increases the rate of reaction without being used up during the reaction is called a : 1. Catalyst 2. Reactant 3. Product 4. Solute

1. Catalyst

_______ regulates what enters and leaves a cell: 1. Cell membrane 2. Mitochondria 3. Nucleus 4. Cytoplasm

1. Cell membrane

Cells that line the trachea specialize in moving fluids across their surfaces, down the throat. Which organelle would these cells most likely have in abundance? 1. Cilia 2. Flagella 3. Centrioles 4. Mitochondria

1. Cilia

Transporting small molecules like O2 and CO2. 1. Diffusion 2. Osmosis 3. Molecular Pump

1. Diffusion

Which of the following is an example of positive feedback? 1. Increasing muscle contraction/hormones during childbirth. 2. Blood vessels dilate to lower body temperature. 3. Insulin is released to stop blood sugar from rising. 4. The body shivers to generate heat.

1. Increasing muscle contraction/hormones during childbirth.

This organelle is responsible for destroying worn-out cell parts: 1. Lysosomes 2. Mitochondria 3. Golgi apparatus 4. Ribosomes

1. Lysosomes

What part of the negative feedback loop is what happens inside of the organism, as the result of the effector? 1. Response 2. Initiation 3. Effector 4. Receptor

1. Response

What means of particle transport requires energy? 1. Passive 2. Active 3. Osmosis

2. Active

Inherited traits are passed down from our parents to us, their offspring, by the information that is coded in our parents' 1. Phospholipids 2. Chromosomes 3. RNA 4. Proteins

2. Chromosomes

Transporting large molecules like glucose. 1. Diffusion 2. Facilitated diffusion 3. Exocytosis

2. Facilitated diffusion

A section through the thoracic cavity in which you could see the vertebral column enclosing the spinal cord, the sternum, the heart and both lungs would be in which of the following planes? 1. Parasaggital 2. Horizontal (transverse)

2. Horizontal (transverse)

The cell shrunk in size, which means it was placed in a ______ solution. 1. Isotonic 2. Hypertonic 3. Hypotonic

2. Hypertonic

Which type of solution has the same solute concentration inside and outside of the cell? 1. Hypertonic 2. Isostonic 3. Hypotonic

2. Isostonic

Skeletal muscle is composed of very hardworking cells. Which organelles would you expect to find in abundance in a skeletal muscle cell? 1. Nuclei 2. Mitochondria 3. Vacuoles 4. Ribosomes

2. Mitochondria

This mechanism is in play when the original state is restored due to a response the opposes that change. 1. Positive feedback loop 2. Negative feedback loop 3. Control center loop

2. Negative feedback loop

Located within the nucleus, it is responsible for producing ribosomes: 1. Centrosome 2. Nucleolus 3. Nucleus 4. Endoplasmic Reticulum

2. Nucleolus

The nose is superior to the navel. True or False

True

The wrist is distal to the elbow. True or False

True

The coronal plane divides the body into

anterior and posterior portions (front and back)