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Which of the following statement is correct?
Precalculus 10 by Michael Sullivan
Precalculus 10 Edition
Author:
Michael Sullivan
Edition:
10
ISBN:
9780321979070
Publisher:
PEARSON
Subject:
Pre-Calculus
Question
Easy
Timing Icon

Solving time: 1 mins

Which of the following statement is correct?

A
All bacteria are heterotrophic

B
Bacteria are either heterotrophic or chemoautotrophic

C
Bacteria can also be photoautotrophic

D
Bacteria are either photoautotrophic or chemoautotrophic

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Views: 5,560 students

Updated on: Feb 24, 2024

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Book:

Precalculus

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Correct answer is C
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Practice questions from Precalculus

Question 1
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Yeast is not included in protozoans but in fungi because.
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  2. Some fungal hyphae grow in such a way that they give the appearance of pseudomycelium
  3. It has eukaryotic organisation
  4. Cell wall is made up of cellulose and reserve food material as starch
Topic

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Biological Classification

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Precalculus

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Question 2
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The shape of the cocci bacteria is:
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  2. Spherical
  3. Comma shaped
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Question 3
Easy
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Bacteria are included in which of the following kingdoms:
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  3. Monera
  4. Animalia
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Biological Classification

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Question 4
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Which statement is incorrect for Albugo?
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  3. Biflagellated zoospores
  4. All of the above
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Biological Classification

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Practice more questions from Biological Classification

Question 1
Medium
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S-I- Dikaryon visible in phycomycetes
S-II- Aseptate hyphae present in morels
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  2. Only II correct
  3. Both I and II correct
  4. Both I and II wrong
Topic

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Biological Classification

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Question 2
Medium
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Mark the incorrectly matched
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  2. Spirulina – Oxygenic
  3. Nitrococcus – Autotroph
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Question 3
Hard
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The asexual spores formed by , and are
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  2. unicelluar
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Topic

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Biological Classification

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Question 4
Easy
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Club-fungi is
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  2. Deuteromycetes
  3. Basidiomycetes
  4. Ascomycetes
Topic

Topic:

Biological Classification

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Practice questions on similar concepts asked by Filo students

Question 1
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(i) Cyanobacteria : Cyanobacteria are Gram negative photosynthetic prokaryotes, being the most primitive organisms to have oxygenic photosynthesis. They have chlorophyll 'a' similar to green plants. They added oxygen to the atmosphere, which is indispensible for the existence of aerobic forms of living organisms. They are also known as BGA (Blue green algae) and are classified variously under cyanophyceae or myxophyceae. Occurrence : They are mainly fresh water forms, though few are marine. They occur in symbiotic association with almost every group of eukaryotes . green algae, fungi, bryophytes like mosses and Anthoceros, ferns, gymnosperms, angiosperms, sponge, shrimps, mammals etc. Anabaena azollae is associated with Azolla, an aquatic fern. Anabaena cycadeae is associated with coralloid roots of Cycas. In many lichens (symbiotic association of algae and fungi), the algal partner may be a cyanobacterium. When they live endozoically in protozoans they are called cyanelle. . Structural Organization : These may be unicelled, filamentous and colonial. Filamentous form consists ng of one or more cellular strands, called trichomes, surrounded by mucilagenous sheath. Cyanobacteria de are characterised by the absence of flagellum throughout life cycle. Fig.: A filamentous blue-green algae- Nostoc
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Topic:

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Question 2
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Lead inhibits enzymes and can interfere with development of the nervous system. One battery manufacturer banned female employees of childbearing age from working in areas where they might be exposed to high levels of lead. The Supreme Court ruled the policy illegal. But many people are uncomfortable about the "right" to work in an unsafe environment. What rights and responsibilities of employers, employees, and government agencies are in conflict? What criteria should be used to decide who can work in a particular environment?
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Question 3
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Problem: Cloning Challenge You are doing an internship at a biotech company that develops weight loss drugs. They have identified a hormone called SKNY1 that decreases feelings of hunger. Early evidence in animal trials indicates that the hormone may be an effective treatment for weight loss. The company would like to produce this hormone for a clinical trial to see if it is effective for weight loss in clinically obese individuals. This worksheet will guide you through the steps that you can use to create a vector that can be used for production of the hormone in bacteria. Step 1: Design primers to amplify the SKNY1 gene. 1. Below is the region of DNA containing the SKNY1 gene. Underline the sequences that could be used as primers. You will need a forward primer and a reverse primer. 5'-CCAATGCCGAGCTGTGCCTAGGCTAGCGTGTCGCTTGTA.........(600 bps).........GGGCTGCTATCGATCGATGCTGCACGCTAGTCTAA-3' 3'-GGTTACGGCTCGACACGGATCCGATCGCACAGCGAACAT.........(600 bps).........CCCGACGATAGCTAGCTACGACGTGCGATCAGCTT-5' Forward primer: 5' - Reverse primer: 3' - Step 2: PCR-amplify the target sequence. 2. Next, you will need to PCR-amplify the target sequence to clone it into the plasmid vector. Should you use cDNA library or a genomic DNA library as your insert source? Explain your answer. Step 3: Clone the insert DNA (SKNY1 sequence) into the cloning vector. 3. Next, you need to clone the insert into a plasmid vector. Should you use a cloning vector or an expression vector? Explain your answer. 4. Below is the map for the plasmid vector that you can use for cloning of the SKNY1 gene. This vector has the regulatory region from the lac operon (promoter and operator region) followed by a multiple cloning site (MCS). How will you use select specific restriction enzymes to ensure that the insert DNA (SKNY1 sequence) and the plasmid will ligate together in the correct orientation? Step 4: Transformation of E. coli with the vector + insert 5. Why would you need to transform the plasmid into bacteria? Step 5: Expression of the SKNY gene 6. IPTG (Isopropyl β-D-1-thiogalactopyranoside) is a compound that mimics lactose. Predict what will happen if you grow the bacteria (containing the above plasmid) in a medium containing ampicillin and IPTG.
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Question 4
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explanation of anther with diagram

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Question Text
Which of the following statement is correct?
Updated OnFeb 24, 2024
TopicBiological Classification
SubjectBiology
ClassClass 11
Answer TypeText solution:1 Video solution: 13
Upvotes1323
Avg. Video Duration8 min