BIO 108 Exam 1

The nucleotide most closely associated with energy is a.FAD. b.cyclic AMP. c. ATP D. NAD E. all of the above

C. Atp

Select the element that is not one of the four most common elements in living matter. a. H b. N C. C D. Phosphorus E. Oxygen

D. phosphorus

Ph of human blood is normally a.7.4 b.6.8 c.8.2 d.7.0 e.5.0

a. 7.4

The rate of diffusion through a semipermeable membrane will be lowest when the a.differences in concentration on either side are the least. b.actions of active transport override diffusion. c.differences in concentration on either side are the greatest. d.temperature is raised to near boiling. e.inside is hypertonic to the outside.

a. differences in concentration on either side are the least

Which type of neuroglia cell is found outside of the brain? a.Schwann cells b.oligodendrocytes c.microglia d.axons e.astrocytes

a.Schwann cells

Blood plasma contains a.all of these. b.several types of blood cells. c.proteins. d.fluid. e.platelets.

a.all of these

Bones grow in length due to activity in the ________. a.epiphyseal plate b.medullary cavity c.periosteum d.perichondrium

a.epiphyseal plate

Tendons connect a.muscles to bones. b.bones to ligaments. c.all of these d.bones to bones. e.bones to cartilage.

a.muscles to bones

Cells that remove debris, provide support, bring nutrients and produce nerve insulation are a.neuroglia. b.hepatocytes. c.chondrocytes. d.osteocytes. e.neurons.

a.neuroglia

The fluid mosaic model refers to the structure of the a.plasma membrane. b.cell wall. c.cilium. d.nucleus. e.smooth ER.

a.plasma membrane

Which joint has the greatest range of motion? a.synovial b.sutures c.All of these are equally movable. d.cartilaginous e.fibrous

a.synovial

"A change in details of the body plan and functions of organisms through generations" is the definition of physiology. a. respiration. b.evolution. c.mutation. d.homeostasis.

b. evolution

A phospholipid *blank* a. is made up of a triglyceride bonded to a phosphate group b. has both polar and nonpolar regions c. is a building block of ATP d. can donate both cations and anions in solution

b. has both polar and non polar regions

Which of the following is not a function of the cytoskeleton? a.maintain a cell's shape b.process proteins c.anchor organelles d.move the entire cell e.move organelles

b. process protiens

enzymes a.control the speed of a reaction. b.all of these c.change shapes to facilitate certain reactions. d.may require cofactors. e.act on substrates.

b.all of these

The skeletal system is made of ________. a.vitreous humor b.bones and cartilage c.muscles and tendons d.minerals and fat

b.bones and cartilage

In a compound fracture, ________. a.the broken bone does not tear the skin b.broken bone pierces the skin c.one fragment of broken bone is d.compressed into the other the break occurs at an angle to the bone

b.broken bone pierces the skin

Humans derive most of their energy from fats. a.steroids. b.carbohydrates. c.nucleotides. d.proteins.

b.carbohydrates

Long bones enable body movement by acting as a ________. a.fulcrum b.lever c.counterweight d.resistive force

b.lever

Animal cells dismantle and dispose of intracellular waste materials by microvilli packaging and exporting the wastes. a.mitochondrial breakdown of the wastes. b.several lysosomes fusing with a sac that encloses the wastes. c.all of these d.using centrally located vacuoles.

c. all of these

Glycogen is a polysaccharide used for energy storage by a. algae b. bacteria c.animals and algae d.animals e. plants

c. animals and algae

What organic compound do brain cells primarily rely on for fuel? a. galactose b. glycogen c. glucose d. glycerol

c. glucose

The ability to maintain a constant internal environment is a. metabolism b.physiology c.homeostasis d.thermoregulation e.development

c. homeostasis

The skeletal system works with all of the systems of the body. Storage of calcium and phosphorus is its interaction with which system? a.nervous b.muscular c.all of these d.cardiovascular e.digestive

c.all of these

These contain enzymes and are the main organelles of intracellular digestion. a.Golgi bodies b.endoplasmic reticula c.lysosomes d.mitochondria e.ribosomes

c.lysosomes

The specialized cells in the nervous system that serve to conduct a signal are known as a.neuroglia. b.Schwann cells. c.neurons. d.astrocytes. e.dendrocytes.

c.neurons

If its cells are striated and fused at the ends so that the cells contract as a unit, the tissue is a.smooth muscle. b.cardiac muscle. c.none of these d.dense fibrous connective. e.supportive connective.

c.none of these

Stratified epithelium is typically used for a.absorption. b.secretion. c.protection. d.reproduction. e.excretion.

c.protection

Muscle that is NOT striped and is involuntary is a.striated. b.cardiac. c.smooth. d.skeletal. e.both cardiac and smooth.

c.smooth

Bone recycling allows the body to regulate what? a.the amount of vitamin C in the blood b.the amount of vitamin D in the bone c.the amount of calcium in the blood d.the amount of sodium in the bone e.the amount of sodium in the blood

c.the amount of calcium in the blood

Which statement is true about observations in the scientific process? a. they can be made directly b.they can be made indirectly c.special equipment may be needed d.all of these e. they may be made with an instrument such as microscope

d. all of these

To make a banana split, you halve a banana into two long, thin, right and left sides along the ________. a.longitudinal plane b. coronal plane c. transverse plane d. midsagittal plane

d. midsagittal plane

Science does not involve a.hypothetical concepts b.theories c.controls d.value judgements e. research

d. value judgements

Movement of a molecule against a concentration gradient is a.passive transport. b.facilitated diffusion. c.simple diffusion. d.active transport. e.osmosis.

d.active transport

An extracellular ground substance is characteristic of a.muscle tissue. b.nervous tissue. c.embryonic tissue. d.connective tissue. e.epithelial tissue.

d.connective tissue

In turning a page, you would mainly be using what type of tissue? a.cardiac muscle b.adipose tissue c.epithelial tissue d.skeletal muscle e.smooth muscle

d.skeletal muscle

Which of these is designed by researchers to test only a single prediction of a hypothesis at a time? a.experimental variable b.experimental constant c.controlled variable d.control group e.controlled experiment

e. contorlled exp

In an experiment, the control group a. is exposed to experimental treatments. b. is statistically the most important part of the experiment. c. is not subjected to experimental error. d.is treated exactly the same as the experimental group, except for the one independent variable. e. is maintained under strict laboratory conditions.

e. maintained under strict laboratory conditions

The basic cells that the body uses for rapid communication and control are a.nerves b.neuroglia. c.chondrocytes. d.formed elements. e.neurons.

e.neurons

Which of the following is NOT found as a part of ALL cells? a.RNA b.cell membrane c.DNA d.ribosomes e.nucleus

e.nucleus

The ultimate source of energy for living things is a.aerobic respiration. b.glycolysis. c.fossil fuel. d.the Krebs cycle. e.the sun.

e.the sun

Which bone is your shin bone? a.fibula b.femur c.tibia d.patella e.tarsal

tibia

True or false? water is a polar molecule

true