Pretest Sciences

• The test questionnaire contains 200 questions, with 3 hours allotted for completion.

General Science Questions:

• The statement "The worm is 2 centimeters long" is an observation
• Lysosomes break down lipids, carbohydrates, and proteins into simpler forms.
• Starfish can regenerate through fragmentation.
• Arthropods have jointed legs, unlike annelids.
• Negative geotropism is when plant roots grow towards the surface.
• The Earth's atmosphere contains marine life, traps heat forming greenhouse effect, and blocks the sun's rays.
• Homeostasis maintains a constant internal environment.
• The cell is the smallest unit of life capable of survival and reproduction.
• Trisomy 21 involves 3 copies of chromosome 21.
• Plasmodium causes Malaria
• The stratum basale is the deepest layer of the epidermis.
• Mitochondria are the place of cellular respiration, with final products including ATP.
• Monosaccharides are the building blocks of carbohydrates.
• Fatty deposits in the arteries cause cardiovascular disease
• Glycolysis occurs in the cytoplasm.
• Prokaryotes lack a membrane-bound nucleus.
• Vacuoles produce turgor pressure against the cell wall, acting as a water reservoir.
• Ichthyology studies fish.
• Transcription forms mRNA using DNA as a template.
• Vesicles from the endoplasmic reticulum proceed to the golgi complex.
• Parenchyma functions as food storage in plants.
• Penicillium notatum is a good source of antibiotics.
• Monocots have parallel veins and scattered vascular bundles
• Water is the most abundant inorganic compound in the protoplasm.
• A gene is the unit of heredity.
• Dipterocarp forest is the richest type of tropical rainforest in the Philippines.
• Sound travels fastest in solids.
• Plant cell walls consist of cellulose.
• The correct sequence of the level of organization from lowest to the highest is Cells-tissues-organs-system
• Algae and fungi exhibit symbiosis in lichen.
• Decreased turgor pressure causes camote leaves to wilt.
• Leavened bread is a product of biotechnology that existed even before the industrial age.
• Tapeworms have special saprotrophic methods.
• Amoeba proteus uses pseudopodia for locomotion.
• Parthenogenesis forms a new organism without fertilization.
• Villi are the finger-like folds in the small intestine.
• The epiglottis prevents food from going the wrong way during swallowing.
• Pleura is the membrane that surrounds the lungs.
• PGAL is that 3-carbon formed during photosynthesis
• Mitosis is the process of physical division in eukaryotic cells.
• A fruit is a ripened ovary
• Some fungi are pathogenic
• Both skeletal muscles and the heart are controlled by the autonomic nervous system.
• Photosynthetic microorganisms are classified under Kingdom Protista
• Plants wilt when transpiration is faster than water absorption
• The symmetry where body parts are paired on either side of the body is called bilateral
• The stages of incomplete metamorphism are egg, nymph, adult
• Cell growth is stimulated by cytokinesis
• Endocytosis - phagocytosis and pinocytosis
• Smooth endoplasmic reticulum is a series of membrane-bound channels free of ribosomes
• The schistosoma that causes schistosomiasis is a Flatworm.
• Diffusion is a passive process
• Thrombocytes are small, irregularly-shaped cells without nuclei but are rich in ATP.
• Cytology studies the structure and functions of cells
• Grassland is the biome where tropical grassland grows with scattered individual trees and larger herbivores?
• Molting is the process where birds shed feathers at least once a year?
• Liver is the largest organ inside the human body.
• Phenotype is the term referring to the physical appearance of an individual.
• NOT using cross-bred hybrid plants in applying crop technology because these plants are not genetically modified organisms?
• Bacteria are primitive life forms in primitive earth, but not all have a nuclear membrane.
• By Perspiration is how the body temperature maintain homeostasis when it is higher than the surrounding
• Biosphere is the sphere on earth life exist
• The features for the animals of Phylum Chordata are notochord for skeletal support, Pharyngeal slits where gas exchanges and the Dorsal hollow nerve cord became the central nervous system
• Mammals are warm blooded, produce milk for the young
• The bone marrow is responsible for the formation of blood cells?
• Grass is a monocot plant?
• Joints attach what cartilages joins
• Mangos propagate as a result of dispersal of water and animals
• DNA replication in involves unwinding two strands of parent DNA
• Amino acid is the monomer protein
• Fungi function root absorbs water and minerals from soil and anchor the plant
• The plant container will eventually die in the dark room because a lack of Carbon Dioxide because if there is light present then they will lack water
• Atom is 99% of the empty volume and protons and neutrons occupies the major
• Distillation is the process that NOT mechanical disintegration
• Noble gases are elements that atomic number 18 belongs to
• Protons and electrons are same but different neutrons isotopes
• Compound is a pure substance, combinations of atoms,chemical bonds
• Dry Ice example of chemical compound
• Lime Water changes a blue litmus paper to red
• The atoms sharing electrons are covalent bonds- sharing
• Buko Pie can be classified as a homogeneous mixture
• The compounds that contain colorless matter boils at 100°C and melts at 0°C is a mixture
• Millions of organic more with carbon
• A hydroxyl is -OH for alcohols group
• carbon triple bond alkyne
• Union is the combination of 2 or more
• heptanes have 7 carbons
• The elements must contain 6 electrons, 6 protons, 6 neutrons
• Glucose
• organic compound with a carbon ring
• C6H14 The molecular form of a molecule
• Saturated single bond covalent
• A chemical bond occurs between 2 hydrogen atoms in a system has energy is released and energy
• The protein is polymer form amino acid
• The anaerobic decomposition of ocean is from petroleum