Biology — Mixed Practice — Part 1: 40 MCQs with Explanations

Athlete's foot (tinea pedis) is caused by dermatophyte fungi.

The large intestine (colon) absorbs most of the remaining water from indigestible food matter.

Melanin is produced by melanocytes and determines skin and hair color, providing UV protection.

Iron is a micronutrient (trace element), needed in smaller amounts compared to N, P, K.

Simple columnar epithelium lines the stomach and intestines, aiding in secretion and absorption.

Female Anopheles mosquitoes transmit the Plasmodium parasite that causes malaria.

CO2 traps heat in the atmosphere, contributing significantly to the greenhouse effect.

Sucrose is composed of glucose and fructose monomers.

Heparin inhibits clot formation and is used medically as an anticoagulant.

The retina is the light-sensitive layer at the back of the eye containing rods and cones.

Forests can be regrown over time, making them a renewable resource if managed sustainably.

Catalase contains heme groups with iron, which helps break down hydrogen peroxide.

Kangaroos carry their underdeveloped young in a pouch, a characteristic of marsupials.

Methane (CH4) is a potent greenhouse gas released from livestock and landfills.

Phycoerythrin is a red pigment that absorbs blue-green light, which penetrates deeper water.

The colon absorbs water and electrolytes, forming solid feces from indigestible material.

Homologous structures share a common evolutionary origin (e.g., pentadactyl limb).

Amoeba uses pseudopodia to surround and engulf food particles via phagocytosis.

Mycology is the branch of biology concerned with the study of fungi.

The cerebellum processes input from sensory systems to coordinate fine motor movements and balance.

Iron is a core component of the heme group in hemoglobin, which binds oxygen.

They proposed that the first life forms were heterotrophs that obtained energy from pre-existing organic molecules.

Sharks have a skeleton made of cartilage, unlike bony fish like tuna and salmon.

Metabolism encompasses both anabolic (building up) and catabolic (breaking down) processes.

Fossil fuels (coal, oil, gas) take millions of years to form and are consumed faster than they are created.

Asbestos fibers are a known carcinogen linked to lung cancer and mesothelioma.

The PMDC has created a central MDCAT data bank where MCQs are generated from the textbooks of all five Pakistani boards to ensure uniformity across provinces.

Charles Darwin proposed the theory of evolution by natural selection, which is a core topic in the Evolution section of the MDCAT Biology syllabus.

The MDCAT syllabus specifically includes conjugated molecules such as glycolipids and glycoproteins under the Biological Molecules section.

The MDCAT syllabus on coordination and control specifies that the cerebellum is the part of the brain responsible for balance and coordination of movement.

The updated test pattern for MDCAT 2026 indicates that approximately 70% of the questions are of 'Moderate' difficulty level, focusing on conceptual understanding.

The lymphatic system is involved in the absorption of fats from the digestive system and plays a crucial role in the body's immune defense.

The joint between the first and second cervical vertebrae (atlas and axis) is a pivot joint that allows rotation of the head.

Ice is less dense than liquid water due to hydrogen bonding, causing it to float. This property, mentioned in the syllabus, insulates aquatic life in winter.

Syphilis, caused by the bacterium Treponema pallidum, is an STD. The MDCAT syllabus covers common STDs and their causative agents.

Simple columnar epithelium lines the stomach and intestines, specialized for secretion and absorption.

Malaria is caused by the protozoan parasite Plasmodium, transmitted by the Anopheles mosquito.

Cellulose is a structural polysaccharide composed of long chains of glucose monomers, specifically mentioned in the syllabus.

Brain is the correct answer to “Skull Protect Our”. Items of this type are drawn from the Biology — Mixed Practice — Part 1 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Third molars is the correct answer to “Wisdom Teeth Is Also Known As”. Items of this type are drawn from the Biology — Mixed Practice — Part 1 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Bat is a mammal who fly.

Highly intelligent Mammals are dolphin .

Allium cepa is the correct answer to “what is the scientific name of onion”. Items of this type are drawn from the Biology — Mixed Practice — Part 1 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Type 1 diabetes is the correct answer to “Dogs mostly show which type of Diabetes Mellitus:”. Items of this type are drawn from the Biology — Mixed Practice — Part 1 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Type 2 diabetes is the correct answer to “Cats mostly show which type of Diabetes Mellitus”. Items of this type are drawn from the Biology — Mixed Practice — Part 1 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Glut 4 is the correct answer to “Which of the following are insulin dependent Glut receptors”. Items of this type are drawn from the Biology — Mixed Practice — Part 1 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

All is the correct answer to “Which of the following are the properties of Anti inflammatory medicines”. Items of this type are drawn from the Biology — Mixed Practice — Part 1 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Oxyntic is the correct answer to “Which of the following secrete hydrochloric acid in stomach”. Items of this type are drawn from the Biology — Mixed Practice — Part 1 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Coelom is divided into septa in case of: Annelids .

Insects responsible for transmitting diseases are called Vectors .

Genetic information carriers is/are Chromosomes .

The first cloned animal was Sheep .

The number carpels in our feet is (0) Zero .

Oxygen is the production of Chloroplast .

The cardio respiratory capacity is related to Normal physical endurance .

bacteria passing through the placenta is the correct answer to “Which is NOT an example of a microbial symbiosis”. Items of this type are drawn from the Biology — Mixed Practice — Part 1 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Study of interaction of living organisms with other organisms and their environment relates with Ecology .

Anoxia is a condition in which there is an absence of oxygen supply to an organs tissues.

Circular disc shaped structure with a round hole is Iris .

The higher animals have special organs for exchange of gases as their skin is Thick .

Length of membranous urethra is about 1 cm .

Kind of cellular respiration which occurs in presence of oxygen is Anaerobic respiration .

Crysanthemum is propagated by Suckers .

Another name for liver is called Hepar .

œlub sound is produced after The bicuspid and tricuspid valves suddenly close .

Examples of Epigeal germination include Sword bean seed .

All are functions of hypothalamus, but, Regulation of anti-diuretic hormones .

What is hibernation and aestivation Thermal adaptation shown by animals .

BOD refers to the Biochemical Oxygen demand .

Self pollination is not possible in both A and B .

Acetabularia mediterranea has a cap of Regular shape .

Mild tertian malaria is caused by Plasmodium vivax .

Sweat glands occur in greatest number in the skin of the Armpits .

Parkinson is a disease of Brain .

Acetabularia is a kind of Unicellular alga .

Under unfavourable conditions, the Amoeba reproduces by Encystment .

Sporogony of malaria parasite occurs in Stomach wall of mosquito .

Ground nut is the correct answer to “Which of the following  Tikka disease is related with the crop”. Items of this type are drawn from the Biology — Mixed Practice — Part 1 syllabus of Pakistani competitive exams, where the fact is tested verbatim.