Bio 116 Study guides, Class notes & Summaries

BIO 116 Exam 1 Questions with Complete Solution

What are the 8 characteristics of life? Answer 1. Common chemical components (proteins, nucleic acids, etc) 2. Composed of Cell(s) 3. Be able to grow 4. Cells obtain energy from environment 5. Have universal genetic code 6. Similar genes 7. Evolving populations 8. Maintain homeostasis......must have all 8 to be considered living What is the scientific method? Answer Make observations, ask questions, make a testable hypothesis, make a prediction, conduct experiment..........results may ...

In plants, which of the following are produced by meiosis? Answer haploid spores Where in an angiosperm would you find a megasporangium? Answer within an ovule contained within an ovary of a flower Which of the following is a major trend in land plant evolution over the past 200 million years? Answer the trend toward a sporophyte-dominated life cycle Which of the following statements describes a difference between seed plants and ferns? Answer seed plants produce two kinds of spores ...

What are the mechanics involved with inspiration? Answer Inhale, chest rises What are the mechanics involved with expiration? Answer Exhale, chest falls Which muscles contract during inspiration? Answer Sternocleidomastoid pulls ribs and sternum up. Pectoralis minor pulls ribs up and out. Diaphragm pulls down. What muscles contract during expiration? Answer Rectum abdominus pulls ribs down and in. Internal intercostal pulls ribs down and in. Diaphragm recoils. How does the abdominal ...

What is the smallest functional unit of an element? Answer Atom What is the nucleus made of? Answer protons and neutrons What is a proton? Answer positively charged particle found in the nucleus, have mass What is a neutron? Answer a particle that has no charge and that is inside the nucleus, have mass What is an electron and where is it found? Answer Negatively charged particle with no mass. found in the shell The first shell has the lowest energy? Answer True Different isotop...

xylem travels _____, and it is used to transport _____ Answer up, water the capacity of a single parenchyma cell to regenerate into an entire plant is called ____ Answer totipotency what is a major component of the middle lamella? Answer pectin A nail is driven (6 feet above ground level) into the trunk of an oak tree. Oak trees grow 1 foot per year. In 4 years (include spring growth in each year), the nail would be: Answer 6 feet above ground level what type of cell is most abundant...

Correctly sequence the steps of phototropism by plants. I. Auxin travels in phloem II. Plant bends toward light III. Cells elongate IV. Tip of plant detects light V. Cell walls weaken IV - I - V - III - II Which of the following is/are true regarding plant growth? I.Elongation occurs at meristem II.Grown pattern is indeterminate III.Rapid growth occurs in response to high ABA I and II Which of the following hormone -- function pairs are correct? I.Auxin - phototropism II.Cytokinin ...

In animal development, which of the following best describes the process of cleavage? Mitosis What are the cells created by cleavage called? Blastomeres Which of the following are the three germ layers contained in the gastrula? Ectoderm, mesoderm, endoderm Which of the following stages of development is defined by the three embryonic tissue layers (ectoderm, mesoderm, and endoderm)? Gastrula

blood is the ________ portion of the cardiovascular system fluid what are the components of the cardiovascular system? heart, blood vessels, blood What are blood vessels? arteries, veins, capillaries what are the functions of blood ? Transport dissolved gases, nutrients, hormones, and metabolic wastes stabilize body Temperature Regulate pH and ion composition of interstitial fluids; Restrict fluid loss at injury sites; Defend against toxins and pathogens (TTRRD)