MCQ in Biological Science Part 11 | Licensure Exam for Teachers Review

This is the MCQ LET Reviewer, Multiple Choice Questions in Biological Science Part 11 as one coverage of Licensure Examinations for Teachers (LET). The exam is divided into two classifications. First is the elementary level exam which covers topics from General Education (GenEd) 40% and Professional Education (ProfEd) 60%. Second is the secondary level, which covers GenEd 20%, ProfEd 40% and area of specialization 40%. I assume you are looking for a reviewer that will help you achieve your goal to become a professional licensed teacher very soon. Yes, you are in the right place to make your dream come true. Make sure to familiarize each and every question to increase the chance of passing the Licensure Examinations for Teachers (LET).

Area of Specialization Coverage

Area of specialization refers to the majorship or the specific field that BSED graduates will handle:

• ENGLISH
• BIOLOGY
• CHEMISTRY
• VALUES
• MATH
• FILIPINO
• SOCIAL STUDIES
• MUSIC, ART, PHYSICAL EDUCATION, and HEALTH or MAPEH
• TECHNOLOGY and LIVELIHOOD EDUCATION
• AGRICULTURE AND FISHERY ARTS

Continue Practice Exam Test Questions Part 10 of the Series

⇐ MCQ in Biological Science Part 10 | Licensure Exam for Teachers Review

Choose the letter of the best answer in each question.

501. Which type of blood cells help in clotting?

A. White blood cells

B. Red blood cells

C. Platelets

D. Plasma

502. Which organ produces red blood cells in adults?

A. Liver

B. Bone marrow

C. Spleen

D. Kidney

503. Which gas is exhaled in the largest amount during respiration?

A. Oxygen

B. Carbon dioxide

C. Nitrogen

D. Hydrogen

504. Which muscle plays a major role in breathing?

A. Diaphragm

B. Intercostal muscles

C. Abdominal muscles

D. Pectoral muscles

505. Which enzyme in saliva helps digest carbohydrates?

A. Pepsin

B. Amylase

C. Lipase

D. Trypsin

506. Which organ produces bile?

A. Stomach

B. Liver

C. Gallbladder

D. Pancreas

507. Which type of joint is found in the shoulder and hip?

A. Hinge

B. Ball and socket

C. Pivot

D. Gliding

508. Which type of muscle is responsible for voluntary movement?

A. Smooth muscle

B. Cardiac muscle

C. Skeletal muscle

D. Involuntary muscle

509. Which part of the brain controls balance and coordination?

A. Cerebrum

B. Cerebellum

C. Brainstem

D. Hypothalamus

510. Which type of neuron carries messages from the body to the brain?

A. Motor neuron

B. Sensory neuron

C. Interneuron

D. Spinal neuron

511. Which hormone regulates blood sugar levels?

A. Adrenaline

B. Insulin

C. Estrogen

D. Growth hormone

512. Which gland releases melatonin, the sleep-regulating hormone?

A. Thyroid

B. Pituitary

C. Pineal

D. Adrenal

513. Which tube carries urine from the kidney to the bladder?

A. Urethra

B. Ureter

C. Nephron

D. Collecting duct

514. Which organ removes excess water and waste from the blood?

A. Liver

B. Kidney

C. Stomach

D. Pancreas

515. Which male reproductive organ produces sperm?

A. Prostate

B. Testes

C. Epididymis

D. Vas deferens

516. Which part of the female reproductive system is the site of fertilization?

A. Uterus

B. Ovary

C. Vagina

D. Fallopian tube

517. What percentage of the human body is water?

A. 50%

B. 60%

C. 70%

D. 80%

518. Which vitamin is essential for vision?

A. Vitamin A

B. Vitamin B

C. Vitamin C

D. Vitamin K

519. The pigment responsible for the red color of human blood is:

A. Myoglobin

B. Hemoglobin

C. Chlorophyll

D. Carotene

520. Which disease is caused by the lack of insulin?

A. Anemia

B. Diabetes mellitus

C. Hypertension

D. Scurvy

521. Which type of graph is best for showing trends over time?

A. Bar graph

B. Line graph

C. Pie chart

D. Histogram

522. Which blood vessel carries oxygenated blood from the lungs to the heart?

A. Pulmonary artery

B. Pulmonary vein

C. Aorta

D. Superior vena cava

523. Which chamber of the heart receives deoxygenated blood from the body?

A. Left atrium

B. Left ventricle

C. Right atrium

D. Right ventricle

524. Which structure prevents food from entering the windpipe?

A. Trachea

B. Epiglottis

C. Pharynx

D. Larynx

525. Which part of the respiratory system is the primary site of gas exchange?

A. Bronchi

B. Trachea

C. Alveoli

D. Larynx

526. Which organ produces digestive enzymes and insulin?

A. Stomach

B. Liver

C. Pancreas

D. Gallbladder

527. Which organ stores bile?

A. Liver

B. Pancreas

C. Gallbladder

D. Small intestine

528. Which bone protects the brain?

A. Sternum

B. Femur

C. Skull

D. Ribs

529. Which joint allows movement in only one direction, such as in the knee and elbow?

A. Hinge joint

B. Ball-and-socket joint

C. Pivot joint

D. Saddle joint

530. Which part of the brain is responsible for memory and learning?

A. Cerebrum

B. Brainstem

C. Hypothalamus

D. Cerebellum

531. Which part of the nervous system controls involuntary actions such as heartbeat and digestion?

A. Somatic nervous system

B. Central nervous system

C. Autonomic nervous system

D. Sensory nervous system

532. Which hormone regulates calcium levels in the blood?

A. Insulin

B. Adrenaline

C. Parathyroid hormone

D. Growth hormone

533. Which gland is often called the “master gland” because it regulates other glands?

A. Thyroid

B. Pituitary

C. Adrenal

D. Pineal

534. Which waste product is excreted by the kidneys?

A. Oxygen

B. Carbon dioxide

C. Urea

D. Bile

535. What is the functional unit of the kidney?

A. Neuron

B. Nephron

C. Alveolus

D. Capillary

536. Which hormone triggers ovulation in females?

A. Estrogen

B. Progesterone

C. Luteinizing hormone (LH)

D. Oxytocin

537. Which structure in males transports sperm from the testes to the urethra?

A. Vas deferens

B. Epididymis

C. Prostate

D. Ureter

538. Which of the following is NOT a component of the circulatory system?

A. Heart

B. Blood

C. Lungs

D. Blood vessels

539. Which blood component fights infections?

A. Red blood cells

B. White blood cells

C. Platelets

D. Plasma

540. Which vitamin is essential for blood clotting?

A. Vitamin A

B. Vitamin B12

C. Vitamin K

D. Vitamin C

541. Which part of the eye controls the amount of light entering it?

A. Cornea

B. Retina

C. Pupil

D. Lens

542. Which gas is essential for photosynthesis?

A. Oxygen

B. Carbon dioxide

C. Nitrogen

D. Hydrogen

543. Which organ in the body is responsible for filtering and removing toxins from the blood?

A. Lungs

B. Kidney

C. Liver

D. Spleen

544. Which of the following is NOT a function of the skeletal system?

A. Protection

B. Support

C. Blood cell production

D. Hormone secretion

545. What is the primary function of hemoglobin in red blood cells?

A. Fighting infections

B. Transporting oxygen

C. Clotting blood

D. Producing energy

546. What part of the digestive system is responsible for absorbing most nutrients?

A. Stomach

B. Large intestine

C. Small intestine

D. Liver

547. Which vitamin is synthesized by the skin when exposed to sunlight?

A. Vitamin A

B. Vitamin B12

C. Vitamin C

D. Vitamin D

548. What is the main function of the platelets in the blood?

A. Transport oxygen

B. Aid in blood clotting

C. Fight infections

D. Regulate body temperature

549. Which of the following is the largest and longest nerve in the human body?

A. Sciatic nerve

B. Spinal nerve

C. Vagus nerve

D. Optic nerve

550. What is the primary function of the hypothalamus?

A. Producing digestive enzymes

B. Regulating body temperature and hormones

C. Controlling muscle coordination

D. Transporting oxygen in the blood

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