STD 12 - 1. sexual reproduction in flowering plants — NEET STD 11 Science — Question

Which of the following is a wrong statement about Golgi apparatus?
i. Camillo Golgi (1898) first observed densely stained reticular structures near the nucleus.
ii. The Golgi cisternae are concentrically arranged near the nucleus with distinct convex cis or the forming face and concave trans or the maturing face.
iii. The Golgi apparatus principally performs the function of packaging materials.
iv. Materials to be packaged in the form of vesicles from the ER fuse with the trans face of the Golgi apparatus and move towards the forming face.
v. A number of proteins synthesised by ribosomes on the endoplasmic reticulum are modified by Golgi apparatus.
vi. Golgi apparatus is the important site of formation of proteins and lipids.

Which of the following describes the given graph correctly?

Statement I: The cells derived from root apical and shoot apical meristems and cambium differentiate and mature to perform specific functions.
Statement II: This act leading to maturation is termed as dedifferentiation.

What is the function performed by plant pigments?

Abscission and dormancy are caused by

Fill in the blanks and choose the correct option given below.
(i) The basidiospores are A produced on the basidium.
(ii) B are commonly known as imperfect fungi because only the asexual or vegetative phases of these fungi are known.
(iii) The deuteromycetes reproduce only by C spores known as conidia.
(iv) D and E shows dikaryon stage.
(v) F and G are examples of insectivorous plants and Cuscuta is a parasite.
(vi) The viruses are H organism that are characterized by having an inert crystalline structure outside the living cell.
(vii) The name virus that means venom or poisonous fluid was given by Pasteur. I showed that viruses could be crystallized and crystals consist largely of proteins.
(viii) Viruses are J parasites.
(ix) In general, viruses that infect plants have K and viruses that infect animals have either single or double stranded RNA or double stranded DNA.
(x) Bacterial viruses or bactriophages are usually L virus.
(xi) Viroids are smaller than viruses and caused M
(xii) The algal component is known as N and fungal component as mycobiont in lichens.