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- Which of the following is not true regarding cytokinesis?* A.Simultaneously happen with the telophase. B.It is the division of cytoplasm. C.The same with the interkinesis. D.Leads to the formation of cleavage furrow.The membrane around the vacuole is known as (a) Tonoplast (b) Elaioplast (c) Cytoplast (d) AmyloplastOsmotolerant yeasts are able to grow at high salt concentrations because their cytoplasm contains high concentrations of_______________ a High sodium ions b Amino acids. c Lipids. d polyalcohols like glycerol
- 1) A group of unspecialized embryonic cells is transplanted from a leg bud to a wing bud in a chick embryos and develops into toes. Which term best describes this phenomenon? A) Differentiation B) Determination C) Induction D) Pattern formation 2) All of the following occur in the light reactions of photosynthesis except the A) Utilization of photons B) Formation of ADP molecules C) Formation of O2 molecules D) Oxidation of water moleculesDiseased animal cells may produce molecules thatactivate death cascades to kill the cells in a controlledmanner. Why would neighboring healthy cells also die?a. The death molecule is passed throughdesmosomes.b. The death molecule is passed throughplasmodesmata.c. The death molecule disrupts the extracellularmatrix.d. The death molecule passes through gap junctions.The cell membrane a) has no function that is known. b) is responsible for starting mitosis. c) controls what substances enter the cell. d) has a thick cuticle around the outside.
- Bats found with white-nose syndrome appeared to die because: a the fungal infection affected their wings so they could no longer fly b the fungal infection attacked the areas needed to maintain body temperature, so the bats froze to death c the fungal infection caused them to wake more often and use up their fat reserves, so they died of starvation d their immune system was suppressed, so they contracted other deadly infections e their torpor became so deep they could not wake from their hibernationCells synthesize new organic molecules to(a) perform structural maintenance and repairs.(b) support growth.(c) produce secretions.(d) a, b, and c are correct.Mitosis and cytoplasmic division function in ______ a. asexual reproduction of unicellular eukaryotes b. Gamete formation in prokaryotes c. Growth and tissue repair in multi – cellular organisms. d. Both a and c
- The main difference between plant and animal cells is: A Plant cells has small vacuoles B Animal cell lacks rigid cell wall C Animal cells has large vacuoles D Plant cell lacks rigid cell wallGive the correct biological term for each of the following statements: 1.A.Projection on the inner membrane of the mitochondrion B.Stack of membranous vesicles which are secretory in function C. Membrane around the vacuole D. Colourless plastids E. Pressure created by the protoplast on the cell wallThe type of tissue found on human skin has all these features except A. High power of regeneration B. Highly vascularized C. Has many cell junctions D. Movement of materials is by simple diffusion