Gametophytes Study guides, Class notes & Summaries

Land Plants Complex multicellular organism that range in size from minute to MASSIVE. Adaptations of this type of plant include anatomical, physiological, and reproductive features. Waxy Cuticle Covers aerial portions of a plant, protects against water loss. Resides ON TOP of the epidermis. Stomata Used for gas exchanged, required for photosynthesis. Guard Cells surround this and can open or close it depending on environmental/chemical interactions. Antheridia Gametangia that produce SPER...

The calvin cycle reactions are dependent upon a supply of - Answer-carbon dioxide, NADPH, and ATP Which cofactor is involved in the Calvin cycle reactions? - Answer-NADP+ Segments of DNA that are not part of the gene are called - Answer-introns Which of the following is not true of ribosomes - Answer-they bind only one type of amino acid Which part of an operon is incorrectly matched with its function? - Answer-regulator--binds to the repressor protein Cells of the ground tissue s...

Contemporary Issues in Biology- Exam #3- Sawey Questions and Answers What caused the Bubonic Plague? - Answer- bacteria called Bacillus (rod-shaped) How much of the population was effected by this? - Answer- 25% of the population in Europe died in the mid-1300's How is the plague spread? - Answer- flea sucks blood from infected rat --> flea picks up bacteria that causes plague (Yersinia petis) --> flea feeds on human and spreads disease Malaria - Answer- one of the most deadly dis...

What defines vascular plants? 1. Sporophyte is dominant, independent and branched. 2. Contain xylem (lignin) and phloem. What kind of branching do lycophytes have? Dichotomous. What is dichotomous branching? When the meristem divides in two. Are lycophytes microphyllous or megaphyllous? Microphyllous. What is microphyll? A plant leaf with one single, unbranched vein. Are leaf traces present in lycophytes? No. Where do endogenous roots in lycophytes arise? From the pericycle of the stem. W...

Contemporary Issues in Biology- Exam #3- Sawey Questions and Answers What caused the Bubonic Plague? - Answer- bacteria called Bacillus (rod-shaped) How much of the population was effected by this? - Answer- 25% of the population in Europe died in the mid-1300's How is the plague spread? - Answer- flea sucks blood from infected rat --> flea picks up bacteria that causes plague (Yersinia petis) --> flea feeds on human and spreads disease Malaria - Answer- one of the most deadly dis...

BIOL 1P92 Final Exam Prep Questions Well Answered 100% Prokaryotes which plastids originated from - ANSWER Photosynthetic prokaryotic endosymbionts by non-photosynthetic eukaryotic hosts. Are protists monophyletic? - ANSWER Protists are not monophyletic, they are paraphyletic (includes single ancestor and some descendants). They contain organisms that are more closely related to members of other kingdoms than they are to other protists. Phytoplankton - ANSWER Microscopic photo...

Simploid reproductive experiment Blue simploids take 3 stages to reach reproductive maturity red only take 1 Red take over because more fecund term for having the most offspring fecund which two organisms can produce asexually and sexually ulva (green algae) starfish a plant which alternates between two stages isomorphic plants isomorphic plant stages include diploid and haploid Gametophytes form gametes through sporophytes produce zoospores through mitosis

Plants perform oxygenic photosynthesis What essential ecosystem service is provided by land plants? sporophyte of a fern Which of these are spore-producing structures? Style Ovary Stigma Which of the following flower structures are considered female? may contain sporophyte embryos Archegonia____________. They can easily lose water to, and absorb water from, the atomosphere Most moss gametophytes do not have a cuticle and are 1-2 cells thick. What does this imply about moss gametophytes and t...

__ inhabit aquatic ecosystems and wet terrestrial habitats, and have cells organized into tissues, lowlying growth forms without xylem and phloem, and rhizoids for absorbing nutrients and water. a) Green algae b) Seedless vascular plants c) Gymnosperms d) Nonvascular plants (e.g., mosses) - d) Nonvascular plants (e.g., mosses) _______ of life span and size) by a diploid (2n) sporophyte. The sporophyte produces a flower containing haploid (n) pollen and eggs. Fertilization of the egg (to pr...

UBC BIO 210 Exam Questions with Correct Answers What defines vascular plants? - Answer-1. Sporophyte is dominant, independent and branched. 2. Contain xylem (lignin) and phloem. What kind of branching do lycophytes have? - Answer-Dichotomous. What is dichotomous branching? - Answer-When the meristem divides in two. Are lycophytes microphyllous or megaphyllous? - Answer-Microphyllous. What is microphyll? - Answer-A plant leaf with one single, unbranched vein. Are leaf traces present in...