Practice question nln (science)
Which of the following in not found within a bacterial cell? a. Mitochondria b. DNA c. Vesicles d. Ribosomes
A. Mitochondria
Neurons connect together at a. Synergy b. Terminal site c. Docking stations d. Synapse
D. Synpase
The top number on a blood pressure reading indicates: a. Diastolic pressure b. Transient pressure c. Optimum pressure d. Systolic pressure
D. Systolic pressure
The X cranial nerve is the ____ nerve. a. Abducens b. Hypoglossal c. Facial d. Vagus
D. Vagus
All living organisms on earth utilize: a. oxygen b. Light c. Sexual reproduction d. Neurotransmitters e. A triplet genetic code
E. A triplet genetic code
How many basic tissue types does a human have? a. 4 b 5 c. 12 d 23
A 4
Which of the following sentences is true? a. All organisms begin life as a single cell b. Organisms begin life as multi-cellular c. Some organisms begin life as a single cell and others as multi-cellular d. None of the above
A. All organisms begin life as a single cell
Hardening of the arteries is known as a. Atheriosclerosis b. Venous narrowing c. Microcirculation d. Hypertension
A. Atheriosclerosis
Which of the following describe the shoulder joint? a. Ball and socket joint b. Saddle joint c. Hinge joint d. Pivot joint
A. Ball and socket joint
The depletion in the Ozone layer is caused by _____? a. Chlorofluorocarbons b. Nitrous oxide c. Carbon dioxide d. Methane
A. Chlorofluorocarbons
Which one of the following is an example of a tissue? a. Chloroplast b. Liver c. Mammal d. Hamstring
A. Chloroplast
A _____ is a graphical description of feeding relationship among species in an ecological community a. Food web b. Food chain c. Food network d. Food sequence
A. Food web
A steroid is considered a a. Lipid b. Protein c. Enzyme d. Weak acid
A. Lipid
Which of the following is considered a model for enzyme action? a. Lock and Key Model b. Enzyme interaction model c. Transformation model d. Transcription model
A. Lock and key model
Cholesterol that is known as (LDL) stands for a. Low-density lipoproteins b. Low-density lysosomes c. Level-density lipoproteins d. Level-density lysosomes
A. Low-density lipoproteins
Which group of major parts and organs make up the immune system? a. Lymphatic system, spleen, tonsils, thymus and bone marrow b. Brain, spinal cord, and nerve cells c. Heart, veins, arteries, and capillaries d. Nose, trachea, bronchial tubes, lungs, and alveolus
A. Lymphatic system, spleen, tonsils, thymus and bone marrow
The digestion of starch begins in the a. Mouth b. Stomach c. Pylorus d. Duodenum e. Ileum
A. Mouth
The movement of food through the intestines is known as a. Peristalsis b. Ileum translation c. Microvilli proplusion d. Flexure proplusion
A. Peristalsis
Which of the following best describes the biomechanics of breathing? a. Pump handle motion b. Lever action c. Inspiration d. Expiration
A. Pump handle motion
What is the second part of an organism's scientific name? a. Species b. Phylum c. Population d. Kingdom
A. Species
A molecule of hemoglobin can hold how many molecules of oxygen in the blood for transport? a. 2 b. 4 c. 6 d. 8
B. 4
Animal that eat meat almost exclusively are known as a. Herbivores b. Carnivores c. Arthopods d. Prolific organisms
B. Carnivores
The organ of Corti is found in what area of the body? a. Mouth b. Ear c. Nose d. Eye
B. Ear
During the process of oogenesis, primary oocytes produce a. Sperm b. Eggs c. Oogonia d. Stem cells e. None of the above
B. Eggs
The adrenal glands are part of the: a. Immune system b. Endocrine system c. Lymphatic system d. Respiration system
B. Endocrine system
Scientists suggest that ____ has occurred through a process called ____ a. Evolution/differentiation b. Evolution/natural selection c. Natural selection/homeostasis d. Homeostasis/reproduction
B. Evolution/natural selection
Which of the following is considered a component of lipids? a. Plasma cells b. Fatty acids c. Nucleic acids d. Zinc
B. Fatty acids
The two bones found in the are between the knee and ankle in the human are known as: a. Femur and tibia b. Fibula and tibia c. Ulna and tibia d. Radius and tibia
B. Fibula and tibia
The major advantage of sexual reproduction over asexual forms is that: a. It requires two individuals b. It promotes diversity c. It produces more offspring d. It can be undertaken at any time of year e. It involves chromosomes
B. It promotes diversity
High levels of bilirubin in the bloodstream can result in: a. Uric acid overexposure b. Jaundice c. Bile salt production d. Hepatic mutation
B. Jaundice
Excessive consumption of alcohol is most likely to damage which organ of the body a long period of time? a. Kidney b. Liver c. Pancreas d. Gall bladder
B. Liver
Which cellular organelle contains enzymes that are considered digestive? a. Golgi Apparatus b. Lysosomes c. Nucleus d. Ribosomes
B. Lysosomes
Organ repair themselves through a process of? a. Meiosis b. Mitosis c. Cellular differentation d. Transformation
B. Mitosis
The brain is part of the a. Integumentary system b. Nervous system c. Endocrine system d. Respiratory system
B. Nervous system
Which of the following statements about prostaglandins is not true? a. Prostaglandins promote inflammation b. Prostaglandins can only constrict blood vessels c. Prostaglandins are made in the renal medulla d. Prostaglandins can lead to pain and fever
B. Prostaglandins can only constrict blood vessels
Of the following, the blood vessel containing the least oxygenated blood is the a. Aorta b. Pulmonary artery c. Capillaries d. Femoral vein
B. Pulmonary artery
How many organs systems are there in the human body? a. 4 b. 7 c. 11 d 13
C. 11
Downs syndrome affects chromosome a. 13 b 15 c. 21 d. 23
C. 21
A normal human sperm must contain: a. An X chromosome b. A Y chromosome c. 23 chromosome d. B and C e. A, B, and C
C. 23 Chromosome
The enzyme maltase does the following a. Breaks down lactose to glucose b. Turns glucose into maltose c. Breaks down maltose into glucose d. Turns glucose into lactose
C. Breaks down maltose into glucose
The condition of rickets is associated with a deficiency in which vitamin? a. A b. C c. D d. Z
C. D
Which chamber of the heart pumps blood to the systemic circulation? a. Left atrium b. Right atrium c. Left ventricle d. Right ventricle
C. Left ventricle
Which hormone is produces by the pineal gland? a. Insulin b. Testosterone c. Melatonin d. Epinephrine
C. Melatonin
When chromosomes line up in mitosis this is known as which phase? a. Telophase b. Anaphase c. Metaphase d. Prophase
C. Metaphase
The Physical expression of a gene are known as an organism's a. Transcription b. Genotype c. Phenotype d. Translation
C. Phenotype
Breathing properly requires that presence of what compound that affects surface tension of alveoli in the lungs? a. Potassium b. Plasma c. Surfactant d. Sodium Chloride
C. Surfactant
Which of the following statement about enzymes is not true? a. Enzymes are catalysts b. All enzymes are proteins c. Enzymes operate most efficiently at optimum pH d. Enzymes are destroyed during chemical reaction
D. Enzymes are destroyed during chemical reaction
What anatomical structure connects the stomach and the mouth? a. Trachea b. Spinal column c. Hepatic duct d. Esophagus
D. Esophagus
Which of the following is not considered a function of the kidneys? a. Secretion b. Reabsorption c. Transport d. Filtration
D. Filtration
What is the name of the process by which a bacterial cell splits into two new cells? a. Mitosis b. Meiosis c. Replication d. Fission
D. Fission
The functional unit of the kidney is known as a. Medulla b. Glomerulus c. Pyramid d. Nephron
D. Nephron
Which of the following is another word for the kneecap in the human body? a. Pisiform b. Meniscus c. Poplitel bursa d. Patella
D. Patella
What are the two types of measurement important in science? a. Quantitative and numerical b. Qualitative and descriptive c. Numerical and scientific d. Quantitative and qualitative
D. Quantitative and qualitative
Blood enters the lungs from which chamber of the heart? a. Right Atrium b. Left atrium c. Right ventricle d. Left ventricle
c. Right ventricle