The antennae pigment complex is composed of - O chlorophyll-a O carotene O xanthophyll O chlorophyll-b O all of the pigments

Q: Why is it important for plants to have pigment like chlorophyll?

A: Chlorophyll is a pigment that gives plants their green colour and aids in photosynthesis, which…

Q: Fill in the blank. The endosperm is O Haploid O Triploid Diploid

A: Angiosperm seeds include endosperm, a substance that protects and feeds the developing embryo…

Q: What would happen if all the plants died? Few people care about the impact of vegetation other than…

A: Trees are more than simply a place for birds to nest or a pretty sight to see; they also help humans…

Q: Iron deficiency results in- (A) Leaf tip necrosis (B) Small leaves disease (C) Decreased protein…

A: Introduction - Iron is a key component of electron chains and a cofactor in a number of important…

Q: Phytochromesa. primarily respond to ultraviolet light.b. exist in two different stable forms.c. have…

A: Plants are multicellular and eukaryotic organisms. Plant body is made of shoot and root. Shoots are…

Q: This plant is referred to as

A: Plants with a simple body plan lack structures like leaves, stems, roots, flowers, etc. they also do…

Q: The small pores present of leaf’s surface are called:         I.   Stomata       II.   Chlorophyll…

A: A leaf is an above-ground part of a plant that is usually green in color and attached to the plant…

Q: Green colors in plants are produced by the presence of:     Pigments called chlorophylls a and b…

A: The plants are multicellular eukaryotes that belong to plantae kingdom. The plants are…

Q: Pfr, the active state of _______________, forms when red light is absorbed. (a) photosystem I (b)…

A: Phytochrome is a blue-green pigment present in plants that plays a crucial role in stem elongation,…

Q: Green plants differ from the algal Charophycea in: Green plants do not have growth throughout the…

A: Algae differ from land plants or higher plants in the following: 1) They lack true roots, stems, and…

Q: ___________ is the sticky resin extracted from the marijuana plant.

A: The answer is.   Cannabis resin

Q: Plants require light to survive because O A. plants use the energy from sunlight to produce food.…

A: Introduction The nonliving things present in the ecosystem make the abiotic components.…

Q: Photoperiodism, when a plant responds to: A. In order to flower, long day plants need: B. In order…

A: Photoperiodism is a physiologic adaptation that occurs during the development of plants. It allows…

Q: UE OR FALSE Rice varieties with erectophile leaves are more susceptible to photorespiration compared…

A: Rice is grown annually and it is a monocot plant. It is consumed as a staple food for over half of…

Q: The finger-like leaves present in pine's embryo a O cotyledons O epicotyl O hypocotyl root cap

A: In Pinus, the mature seed consists of hard testa, thin tegmen, endosperm, embryo and cap like…

Q: Most of the red, blue and purple colours of plants are due to a pigment called_______?

A: The biological pigments are simply referred to as pigments or biochromes. They are the substances…

Q: .A farmer received a purchase order to supply hundreds of carnations for an event that will be held…

A: Definition:- It is defined as a physiological response of organism to the patterns of length of day…

Q: . homozygous CYCYindividuals cannot produce chlorophyll. theability to photosynthesize becomes more…

A: Dear student, please make sure that the given information is complete while submitting the question.…

Q: Plants have several leaf pigments, including chlorophyll (green) and beta- carotene (yellow). The…

A: Beta carotene is a very important nutrient that we get from plant sources. It is a cyclic carotene…

Q: The female gametophyte in flowering plants is also called the (a) polar nuclei (b) anther (c) embryo…

A: Step 1 Angiosperms or flowering plants are seed plants in which sporophylls are organized into…

Q: Plants have been used in dyeing fabrics for centuries O True O False

A: Ans - a) True the development of dyeing in fabrics is the revolution due to the synergistic use of…

Q: What is shown in the image above? one doubly compound leaf many simple leaves needle-like leaves…

A: A doubly compound leaf or bipinnate leaf is a leaf that is divided twice in which the leaflets are…

Q: What is the role of water in the light reactions? O It is used to make NADH It is split to supply…

A: In light reaction of photosynthesis, watet splits into oxygen , hydrogen ions and electrons.…

Q: Which of the following illustrates light as a resource? phototropism O photoautotrophy O phototaxis…

A: Nutrition is the process of gathering energy from organisms for their proper growth and development.…

Q: This legume, also called groundnuts, are originally native to South America. O Phaseolus vulgaris O…

A: Plants are classified on the basis of presence or absence of root nodules . These plants are :-  A )…

Q: Modified TRUE or FALSE. Write the word TRUE if the statement is correct. If the statement is false,…

A: Q)Plants use light energy mostly in the invisible light range for photosynthesis.  Ans- This…

Q: A sporophyll is a:* Photosynthetic leaf O Spore bearing leaf O Spore sac Spore mother cell

A: The gymnosperms are a group of seed-producing plants, which produce seeds that are not contained…

Q: These plant cells have only primary cell walls and are important as the site of photosynthesis:…

A: Ground tissue is a tissue which is formed of ground meristem . It is of three types :- A )…

Q: "One bad apple spoils the bunch". Explain this idiom in a scientific way and phytohormone behind…

A: i) The same hormone responsible for this is ethylene gas. Ethylene gas stimulates ripening and the…

Q: Main site of photosynthesis:         I.   Leaf       II.   Stem      III.   Chloroplast      IV.…

A: Photosynthesis is the process by which green plants and certain other organisms transform light…

Q: The Ca pathway utilizes less ATP than C3 pathway thus enabling C. plants to adapt to tropical…

A: The Calvin cycle was first observed in Melvin Calvin in chlorella, which is a unicellular green…

Q: What would happen if you extracted all the chlorophyll from plant chloroplasts? The levels of…

A: Leaves burning has nothing to do with the extraction of chlorophyll from the plant chloroplasts. So…

Q: What is the function of structures Y and Z? O They enable the flower to undergo photosynthesis. O…

A: The correct answer for the question is: They enable the flower to undergo reproduction.

Q: The use of plant dyes possibly began After the Industrial Revolution After chemists discovered how…

A: Option B is the correct answer

Q: Opening and closing of pores is a function performed by:         I.   Stomata       II.…

A: Stomata are cellular structures present in the epidermis of the leaves. They are involved in the…

Q: Chrysanthemums are short-day plants that flower in fall. What cue(s) is important in this process?…

A: Photoperiodism refers to the physiological response of the organisms towards light and dark periods.…

Q: Which 2 are the main pigments in photosynthetic plants?   E   e   A   a

A: There are five main types of chlorophylls: chlorophylls a, b, c and d and bacteriochlorophyll found…

Q: During the fall months, when the air temperature is significantly colder than the summer month that…

A: Answer. The light absorbed in photosynthesis occurs in the visible spectrum between 400 - 700 nm…

Q: Indigofera tinctoria was only recently used for dyeing silks All of the answers cultivated first in…

A:

Q: O sporopollenin to inhibit evaporation from leaves loss of structures that produce spores O remnants…

A: Paleobotanists examine the fossilized remains of dead plants. This will include remains of the the…

Q: TRUE OR FALSE The chlorophyll is on

A: Apomorphies are certain specialized traits that are common to a group of organisms and not present…

Q: "Watermelon snow" in Antarctica is caused by a species of photosynthetic green algae that thrives in…

A: Relative Fitness  is the survival and/or reproductive rate of a genotype (or phenotype) relative to…

Q: Diego has hypothesized that if you add aspirin to the water when watering plants, the plants will…

A: Every experiment consists of two types of groups: experimental and control groups. Experimental…

Q: Pollen tube is attracted to the egg by: O a. Malic acid released by the egg. Ob. Alkaloids produced…

A: Pollen tube:                A tubular structure produced by the male gametophyte of seed plants on…

Q: Green plants differ from the algal Charophycea in: Green plants use phragmoplasts. O b. Green plants…

A: The most important differences between the green plants and the algae is based on their cell…

Q: Absorption of photons by the light capturing center is not directly coupled with evolving of oxygen…

A: The plant, which is a multicellular eukaryotic organism, performs photosynthesis. Plants, which…

Q: n what plant structure does photosynthesis occur? Group of answer choices (more than 1 answers can…

A: Photosynthesis is a process in which plants convert light energy into chemical energy which is then…

Q: The following statement is true: O Water moves up the plant through xylem O CAM plants close stomata…

A: Moment of water and minerals occurs over several metres which cannot be achieved by diffusion. Long…

Defense Mechanism

Circumstances influence and compel people to behave in a certain way. One such behavior is a defense mechanism. It is employed by people to escape from unpleasant circumstances, thoughts and actions. Defense mechanisms are, thus, psychological strategies that help to avert and avoid unwanted feelings such as guilt or shame and situations such as threat and danger.