Bio Unit 1 Intro to Biology & Experimental Design

% Formula

• Calculated by subtracting the part from the whole and multiplying by 100.

• Calculated by dividing the part by the whole (part/whole) and multiplying by 100.

• Calculated by adding the part to the whole and multiplying by 100.

• Calculated by dividing the whole by the part and multiplying by 100.

Cotyledon

• First leaves of a baby plant.

• A type of seed.

• The root of a plant.

• The flower of a plant.

Qualitative Observation

• Descriptive observations gathered using your senses (sight, smell, touch, taste, and hearing).

• Quantitative data collected through measurements and numbers.

• Observations made using only visual cues without any sensory input.

• Inferences drawn from data without direct observation.

Radish plant species

• Raphanus sativa

• Brassica oleracea

• Solanum lycopersicum

• Cucumis sativus

Germination

• The process during which the baby plant emerges from the seed and develops its first root and set of true leaves.

• The stage where a seed is dormant and does not grow.

• The phase when a plant starts to produce flowers and fruits.

• The time when a plant is fully grown and ready for harvest.

Claim

• A statement that answers a scientific question.

• A hypothesis that has not been tested.

• A conclusion drawn from experimental data.

• An observation made during an experiment.

Endosperm

• Food for the baby plant in a seed.

• A type of seed coat.

• The outer layer of a fruit.

• A nutrient for adult plants.

Dependent Variable

• Factor which responds to the change in the independent variable (usually graphed on Y Axis).

• A variable that remains constant throughout the experiment.

• The variable that is manipulated by the researcher.

• A variable that is not affected by any other variables.

Controlled Variables (constants)

• Factors that are manipulated in the experiment.

• All other factors kept constant that are not manipulated in the experiment.

• Variables that are measured during the experiment.

• Random factors that affect the outcome of the experiment.

Seed coat (testa)

• A special covering that protects the embryo & cotyledons in a seed.

• A nutrient source for the developing plant.

• A structure that facilitates water absorption.

• A part that aids in seed dispersal.