UHS MDCAT 2023 Biology Portion Online Quiz by MDCAT GEEK

UHS MDCAT 2023 Biology Online Quiz 

Welcome to the UHS MDCAT 2023 Biology Online Quiz, designed to help you assess and strengthen your understanding of key biological concepts. This interactive quiz features a comprehensive set of questions based on the UHS MDCAT syllabus, allowing you to test your knowledge in a format similar to the actual exam.

Also, attempt UHS MDCAT 2023 Physics portion 

Wrong Answers :

The final destination of lymph is:

1. Lymph node
2. Lymphoid organs
3. Lymph capillaries
4. Subclavian vein

Which of the following types of organs are supposed to be functional in ancestral species rather than in present-day species:

1. Vestigial Organs
2. Homologous organs
3. Analogous organs
4. Embryonic organs

The descending aorta is bifurcated into two vessels which on further division from the femoral artery that supplies blood to the thigh muscles of the legs:

1. iliac vein
2. iliac artery
3. temporal artery
4. sciatic artery

ABO blood group is controlled by more than two alleles in a population. This shows that the ABO blood group is an example of:

1. Polygenic Inheritance
2. Multiple Alleles
3. Operons
4. Allelic interaction

According to Mendel's Law of Segregation, one individual out of four in the F2 generation had a phenotype that failed to express in _______ generation.

1. F1
2. F2
3. F3
4. P1

A test cross is made to check the genotype of a trait. Which of the following crosses is a test cross?

1. Unknown × At
2. Unknown ×tt
3. Unknown × AB
4. Unknown × TT

During the sliding of actin filaments, ATP is used for?

1. Cross bridge formation
2. Cross bridge breaking
3. Dragging filaments
4. Shortening of filaments

The cell membrane of muscle cells is:

1. Sarcoplasm
2. Sarcolemma
3. Sarcomere
4. Myofibrils

Irregular striations and involuntary control are related to?

1. Cardiac muscle cells
2. Fibroelastic cartilage cell
3. Skeletal muscle cells
4. Smooth muscle cells

Cartilage is a type of which tissue?

1. Connective tissues
2. Epithelial tissues
3. Muscular tissues
4. Nervous tissues

Production of follicle-stimulating hormone (FSH) and Luteinizing Hormone (LH) from the pituitary gland of the female is controlled by:

1. Ovary
2. Uterus
3. Stimulated follicles
4. Hypothalamus

The term menopause means:

1. Start of menstruation
2. Start of ovulation
3. Stop of ova production
4. Degeneration of ovaries

To study sex linkages in Drosophila, Morgan mated white-eyed males with wild-type red-eyed females. What will be the phenotype of the offspring?

1. All red-eyed males and females
2. Red-eyed females and white-eyed males
3. White-eyed females and red-eyed males
4. All white-eyed females and males

Enter on is the characteristic feature of:

1. Phylum Porifera
2. Phylum Cnidaria
3. Phylum platyhelminths
4. Phylum Echinodermata

The body of which is called metamerically segmented?

1. Cnidarians
2. Nematodes
3. annelids
4. Sponges

Excretion in Planaria takes place by?

1. Malpighian tubules
2. Protonephridia
3. Metaephridia
4. Nephron

Four chambered heart with right systemic arch only is present in?

1. Amphibians
2. Reptiles
3. Birds
4. Mammals

The movement of water is a lower solute concentration area through a semi-permeable membrane is?

1. Osmotic potential
2. Pressure potential
3. Soil potential
4. Solute potential

The _________ describes how water and dissolved chemicals are carried through the cell wall and intercellular gaps of plants

1. Apoplast theory
2. Symplast theory
3. Vacuolar theory
4. Cytoplasmic theory

Feeding by living in or on other organisms belonging to different species is called?

1. Mineral nutrition
2. Parasitic nutrition
3. Saprophytic nutrition
4. Symbiotic nutrition

Which of the following viruses contains single-stranded DNA?

1. Adenovirus
2. Herpes Virus
3. Parvovirus
4. Pox virus

Which one of the following is X-linked dominant disorder?

1. Haemophilia
2. Color blindness
3. Hypophosmatemic rickets
4. Hypertrichosis

Only those genes can assort independently whose loci are on:

1. Same chromatids
2. Same chromosomes
3. Non-homologous chromosomes
4. Homologous chromosomes

Smooth muscles are found in all mentioned below except

1. Trachea
2. Bronchi
3. Bronchioles
4. Alveoli

The method of bringing oxygenated air into contact with a gas exchange surface is called?

1. Photorespiration
2. Ventilation
3. Gas transport
4. Respiration

The number of layers of cell wall in Gram-positive bacteria is:

1. 1
2. 2
3. 3
4. 4

Helicobacter pylori is an example of:

1. Cocci
2. Bacilli
3. Pleomorphic
4. Spiral

Bacterial cells have the ability to maintain their shape through

1. Cell wall
2. Capsule
3. Cell wall and slime
4. Slime

Which of the following is an example of spiral-shaped bacteria?

1. Diplococcus pneumoniae
2. Hyphomicrobium
3. E.coli
4. Pseudomonas

All the following are disinfectants to control bacteria growth except:

1. Tincture of Iodine
2. Potassium permanganate
3. Mercuric Chloride
4. Hydrogen peroxide

The function of the hyaluronidase enzyme is:

1. Penetration of sperm into the ovum
2. Entrance of the sperm into the vagina
3. Entrance of sperm into the fallopian tube
4. Inactivation of sperms after their failure to fertilize ovum

In human females, what is the small, pear-shaped, muscular, distensible, sac-like organ where gestation takes place?

1. Uterus
2. Kidney
3. Fallopian tube
4. Stomach

The labor pains to expel the fetus are due to the action of oxytocin on:

1. Endometrium
2. Myometrium
3. Perimetrium
4. Ovaries

Virus is what type of agent?

1. Cellular agent
2. Infectious agent
3. Non-infectious agent
4. Non-protein agent

The molecules used to control virus during infection of animal cells are:

1. Interferon
2. Histone
3. Antigen
4. Serum

The provirus of HIV is structurally and chemically made up of?

1. ssRNA
2. ssDNA
3. dsRNA
4. dsDNA

Which of the following is used in baking?

1. Aerobic respiration
2. Anaerobic respiration
3. External respiration
4. Internal respiration

Which of the following is used in baking?

1. Aerobic respiration
2. Anaerobic respiration
3. External respiration
4. Internal respiration

Which is the major event in the electron transport chain?

1. ATP synthesis
2. Decarboxylation
3. Substitution
4. Isomerization

Out of 36 ATP, how many are produced in the electron transport chain?

1. 28
2. 30
3. 32
4. 34

The major enzymes involved in the transfer of the phosphate group from ATP to Glucose is:

1. Isomerase
2. Dehydrogenase
3. Kinase
4. Decarboxylase

__________ forms almost three-fourths of the body by weight

1. Water
2. Protein
3. Carbohydrates
4. Lipids

Energy is _______ by the breakdown of complex molecules into simpler ones, such reactions are called catabolic reactions

1. Released
2. Consumed
3. Produced
4. Destroyed

Biologically ___________ plays key role in maintaining the integrity of lipid bilayer membranes.

1. Hydrophilic exclusion
2. Hydrophobic exclusion
3. Heat of vaporization
4. Specific heat capacity

The specific heat of vaporization of water plays an important role in the regulation of heat produced by

1. Reduction
2. Oxidation
3. Redox
4. None of the above

Which type of bond must be broken for water to vaporize?

1. Nonpolar covalent bonds
2. Polar covalent bonds
3. Hydrogen bonds
4. Covalent bonds

Which statement is true regarding both starch and cellulose?

1. They are both polymers of glucose
2. They are geometric isomers of each other
3. They can both be digested by humans
4. They are both used for energy storage in plants

Most of the monosaccharides form a ring structure when in solution. For example, ribose will form a five-cornered ring known as ________:

1. glucopyranose
2. Ribofuransoe
3. Glyceraldehyde
4. Acetaldehyde

Cyclosis and amoeboid movements are due to:

1. Microtubule
2. Cilia
3. Microfilaments
4. Intermediate filaments

Proteins and lipids are modified into glycoproteins and glycolipids by which cell organelle?

1. Golgi complex
2. rough endoplasmic reticulum
3. smooth endoplasmic reticulum
4. Ribosomes and chromosomes

Which structure of prokaryotic cell will play the role of mitochondrion?

1. Spores
2. Cyst
3. Nucleoid
4. mesosomes

The cell wall of a prokaryotic cell is composed of:

1. Carbohydrates
2. Carbohydrates and proteins
3. Proteins
4. Proteins and lipids