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Biology Lab exam
animal and plant tissue and mitosis
| Question | Answer |
|---|---|
| What are the 4 primary tissue types? | Epithelial, connective, muscular, and nervous |
| What is avascular? | lacking blood vessels |
| How many layers are in simple? | 1 |
| How many layers are in stratified? | 2+ |
| How many layers are in pseudo stratified? | 1 but looks more |
| What shape is squamous? | scale and flat |
| How is parenchyma at maturity? | thin walled and alive Stores starch oil and water. Heals plant wounds |
| How is sclerenchyma at maturity? | thick walled and dead Makes line. And rope |
| Where do we see nectar? | in the secretory structures |
| What are carnivorous plants? | Venus fly trap and nepenthes |
| Columnar epithelium | Lining of intestines and stomach. Absorption secretion. Microvilli increases surface area |
| Stratified squamous epithelium | Skins epidermis and lining of mouth Protection. |
| Adipose | Breast tissue Stores energy and insulation and hormone producer |
| Areolar | Between epidermis and muscle Support and cushioning. Tissue repair and immune response |
| Hyaline cartilage | Joints and nose Shock absorption. Cushions body structure |
| Blood | Veins and arteries Transport blood throughout body delivering o2 and nutrients |
| Osseous/ bone tissue | Company and spongy bones Support movement and protection |
| Epidermis dead or alive at maturity? | Alive at maturity Protects plant Has root hair |
| Collenchyma | Thick walled and alive at maturity Uneven walls and strands of it are found in celery strings |
| Secretory structure | Storing and secreting oils. Milkweed opium poppy and latex |
| Asclepias | Milkweed |
| hevea brasiliensis | Rubber |
| Papaver somniferum | Opium poppy |
| Regeneration | Epithelial cells undergo cellular division at high rates allowing tissue to replace worn out cells |
| Cell division | Produces 2 daughter cells |
| Interphase | Cell grows and carries on usual activities |
| Mitotic phase | Cell division |
| G1 | Growth and metabolism Checkpoint |
| S phase | DNA replication growth and dna synthesis |
| G2 | Final preparation for division and growth |
| Early prophase | Chromatin condensed forming visible chromosomes |
| Late prophase | Nomo nuclear envelope. Spindle fibers attack chromosomes move |
| Metaphase | Lining up to the middle Spindle fibers attach to centromere |
| Anaphase | Chromatids split away Spindle fiber pulls chromosomes to opposite ends of cell |
| Telophase | 2 nucleus form and the membranes back Chromosomes back to chromatid |
| Cytokinesis | Cell membrane punches to form 2 identical cells |
| Metaphase plate | Imaginary line running thru center of cell in metaphase |
| Do plants have centrioles | No but they have spindle fibers. A cell plate forms instead of the cell membrane pinching |
| Centromere | Holds chromatids together to make chromosomes |
| Centrosome | Organizes microtubules Made of 2 centrioles |
Created by:
mahak
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