NEET Zoology Practice Test Paper 2 by TEACHING CARE online tuition and coaching classes
- Use the following characteristics to answer the question:
- one-way valves
- thin elastic layer
iii. near skeletal muscle
These characteristics describe which type of vessel?
- Blood vessels that allow diffusion of gases through their thin walls are the
- The main function of capillaries is to
- return blood to the heart.
- prevent the backflow of blood.
- take blood away from the heart.
- exchange nutrients and wastes with tissues.
- Which of the following blood vessels has a thin elastic layer?
- Pulmonary artery.
- Posterior vena cava.
- Mesenteric capillary.
- Capillary beds are equipped with sphincter muscles in order to
- prevent the backflow of blood.
- expand and recoil with each heart beat.
C.divert blood toward areas of increased metabolic activity.
- hold blood in the beds until nutrient and waste exchange is complete.
- Which of the following best describes a vein?
- Thin-walled, elastic, and equipped with valves.
- Thick-walled, elastic, and equipped with valves.
- Thin-walled, muscular, and supplied with nerves.
- Thick-walled, muscular, and supplied with nerves.
- The function of an artery is to
- transport blood toward the heart.
- transport blood away from the heart.
- connect the right and left atria directly. D. carry carbon dioxide to the tissue cells
- Which of the following is a function of red blood cells?
- clot blood
- carry oxygen
- fight infection
- regulate osmotic pressure
- The major component of human blood is
- red cells.
- white cells.
- Use the following information to answer the question:
- transport of gases
- maintains body temperature
- protect the body against blood loss
- produces hormones that stimulate metabolism
- carries digestive enzymes to the small intestine
How many of the above are functions of the blood?
- A foreign substance that stimulates an immune response is
- Which of the following correctly matches structure with function?
- platelets — provide immunity
- plasma proteins — carry oxygen
- red blood cells — carry carbon dioxide
- white blood cells — initiate blood clotting
- Plasma is composed mostly of
- All of the following are components of plasma except
- Red blood cells originate in the
- lymph nodes.
- bone marrow.
- capillary beds
- Blood reaches the lungs from the heart through the
- pulmonary vein.
- pulmonary arteries.
- superior vena cava.
- Mucus is moved along the respiratory tract by
- active transport.
- An increase in the rate of contractions of the diaphragm and rib muscles would indicate
- decreased hydrogen ion concentration.
- decreased/reduced hemoglobin in the blood.
- increased concentration of bicarbonate ion in the blood.
- increased concentration of oxyhemoglobin in the blood.
- The diaphragm assists breathing by
- moving the ribs up.
- stimulating the lungs to absorb oxygen.
- changing the volume of the thoracic cavity.
- allowing the lungs to move freely in the thoracic cavity.
- Inhalation is caused by
- the diaphragm moving up and the ribs moving in.
- the diaphragm moving up and the ribs moving out.
- the diaphragm moving down and the ribs moving in.
- the diaphragm moving down and the ribs moving out.
- The destruction of the cilia lining the respiratory tract would result in
- decreased breathing rate.
- decreased mucus production.
- increased debris in the airways.
- increased temperature in the lungs.
- Alveoli would not be characterized as
- secreting a lipoprotein.
- Air pressure is reduced inside the thoracic cavity when
- the rib muscles relax.
- the diaphragm moves up.
- the rib cage moves up and out.
- the pleural membranes collapse.
- Which structure carries urine from the bladder to the outside of the body?
- renal pelvis
- collecting duct
- The tube that carries urine out of the bladder is the
- distal tubule.
- collecting duct.
- Urine is stored in the
- urinary bladder.
- Excretion can be defined as the removal of
- toxins from the blood.
- bacteria from the body.
- metabolic wastes from the body.
- excess red blood cells from the blood.
- The function of the ureter is to
- produce urine.
- reabsorb water.
- transport urine from the kidney.
- store urine until it can be released.
- Urine leaves the bladder through the
- loop of Henle.
- collecting duct.
- Which of the following is not a function of the kidneys?
- Maintaining a constant blood pH.
- Producing urea from protein metabolism.
- Removing metabolic wastes from the blood.
- Regulating the amount of water in the body.
- Which of the following structures would not be considered an organ of excretion?
- Small intestine.
- Which of the following is controlled by the somatic nervous system?
- rate of heartbeat
- contraction of skeletal muscles
- increased blood
flow to muscle tissue
- movement of food through the intestines
- Which of the components of the nervous system has both autonomic and somatic divisions?
- The central nervous system includes the
- brain and spinal cord.
- somatic nervous system.
- cranial and spinal nerves.
- parasympathetic nervous system.
- The somatic nervous system controls
- cardiac muscles.
- smooth muscles.
- skeletal muscles.
- Which of the following is involved in the initiation of a “fight or flight” response?
- Thyroid gland.
- Prostate gland.
- Adrenal cortex.
- Adrenal medulla.
- The part of a sensory neuron that transmits nerve impulses from a receptor to the cell body is the
- What type of neuron transmits an impulse to the central nervous system?
- The type of neuron that can only be found in the central nervous system (CNS) is
- motor neuron.
- mixed neuron.
- sensory neuron.
- Movement of cancer cells to a new site where a secondary tumour begins is called
- Increased blood flow to a cancerous tumour is called
- Which of the following is a characteristic of cancer cells?
- Contact inhibition.
- Poor blood supply.
- Disorganized growth.
- The process by which new blood vessels supply a growing tumour is
- The duct that is used by both the reproductive and excretory systems in males is the
- renal pelvis.
- vas deferens.
- Storage and maturation of sperm occurs in the
- corpus luteum.
- seminal vesicle.
- Cowper’s gland.
- A function of the interstitial cells of the testes is the
- storage of semen.
- maturation of sperm cells.
- production of testosterone.
- production of seminal fluid.
- Which of the following store sperm cells and eliminate those that have major genetic defects?
- A. Epididymis.
- B. Interstitial cells.
- C. Seminal vesicles.
- D. Seminiferous tubules.
- The part of the sperm that contains hydrolytic enzymes is the
- Which of the following is not a function of seminal fluid?
- provides a suitable pH
- supplies an energy source
- causes the uterus to contract
- constricts the urethra during ejaculation
- The part of a sperm cell containing the greatest number of mitochondria is the A. head.
Hints and Explainations:
- An arteriole is a small diameter blood vessel in the microcirculation that extends and branches out from an artery and leads to capillaries
- A venule is a small blood vessel in the microcirculation that allows deoxygenated blood to return from the capillary beds to the larger blood vessels called veins
- a regulatory region of DNA located upstream of a gene, providing a control point for regulated gene transcription
38 An interneuron (also called relay neuron, association neuron, connector neuron or local circuit neuron) is a multipolar neuron which connects afferent neurons and efferent neurons in neural pathways. Like motor neurons, interneuron cell bodies are always located in the central nervous system (CNS).
- Contact inhibition is the natural process of arresting cell growth when two or more cells come into contact with each other. Oncologists use this property to distinguish between normal and cancerous cells.
45 A bulbourethral gland, also called a Cowper’s gland for anatomist William Cowper, is one of two small exocrine glands present in the reproductive system of human males. They are homologous to Bartholin’s glands in females.